rowid,run.accession,experiment.accession,sample.accession,study.accession,bioproject,study.title,study.alias,study.type,study.abstract,study.attributes,study.PMIDs,sample.description,sample.title,sample.alias,sample.centername,sample.attributes,GEOsample.title,GEOsample.dataprocessing,GEOsample.source,GEOsample.treatmentprotocol,GEOsample.extractprotocol,GEOsample.growthprotocol,GEOsample.characteristics,GEOsample.accession,experiment.title,experiment.alias,experiment.library_name,experiment.design_description,experiment.library_construction_protocol,experiment.attributes,experiment.library_strategy,experiment.library_source,experiment.library_selection,experiment.library_layout,experiment.platform,experiment.instrument_model,experiment.spot_descriptor,experiment.study_ref,run.title,run.attributes,run.filename,run.semantic_name,run.total_bases,run.total_spots,run.alias,run.read_lengths,run.base_counts,run.r1_length,run.r2_length,run.r3_length,run.r4_length,run.Acount,run.Ccount,run.Gcount,run.Tcount,run.Ncount,run.experiment,run.pool_member,submission.accession,submission.srasource,submission.bioprojectsource,seqdetective.n_mates,seqdetective.mapping_rate.mate1,seqdetective.mapping_rate.mate2,seqdetective.nofeature_rate.mate1,seqdetective.nofeature_rate.mate2,seqdetective.sparsity.mate1,seqdetective.sparsity.mate2,seqdetective.pos_strand_rate.mate1,seqdetective.pos_strand_rate.mate2,seqdetective.readlen.mate1,seqdetective.readlen.mate2,seqdetective.judgement.mate1,seqdetective.judgement.mate2,seqdetective.judgement.reason,platform_family,instrument_generation,read_bias,selection_class,prep_kit,sc_or_bulk,tech_class,technology,tech_variant,submission.bioprojectsource.country,earliest_date,devstage_curation,devstage_curation_coarse,tissue_curation,tissue_curation_coarse 9898,ERR4194114,ERX4155254,ERS4601292,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 2,SAMEA6873729,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873729|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 2|age:8|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 2|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 2 s,Sample 2 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:8|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA8h_1_S2_L001.bam,bam,10087287534.0,99874134.0,E MTAB 9193:cDNA8h 1 S2 L001,0:101,A:2892833391;C:2022466595;G:2198646699;T:2962268446;N:11072403,101,,,,2892833391,2022466595,2198646699,2962268446,11072403,ERX4155254,ERS4601292,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93609,,0.12902,,0.82158,,0.5062,,101,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9899,ERR4194115,ERX4155254,ERS4601292,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 2,SAMEA6873729,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873729|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 2|age:8|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 2|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 2 s,Sample 2 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:8|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA8h_1_S2_L002.bam,bam,10191911414.0,100910014.0,E MTAB 9193:cDNA8h 1 S2 L002,0:101,A:2923216190;C:2043975715;G:2221734566;T:2992798366;N:10186577,101,,,,2923216190,2043975715,2221734566,2992798366,10186577,ERX4155254,ERS4601292,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93445,,0.13038,,0.824,,0.49774,,101,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9900,ERR4194112,ERX4155253,ERS4601291,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 1,SAMEA6873728,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873728|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 1|age:6|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 1|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 1 s,Sample 1 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:6|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA6h_1_S1_L001.bam,bam,7181772357.0,71106657.0,E MTAB 9193:cDNA6h 1 S1 L001,0:101,A:2074032710;C:1415439071;G:1544274166;T:2140112533;N:7913877,101,,,,2074032710,1415439071,1544274166,2140112533,7913877,ERX4155253,ERS4601291,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.9297,,0.12156,,0.8117,,0.51457,,101,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9901,ERR4194113,ERX4155253,ERS4601291,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 1,SAMEA6873728,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873728|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 1|age:6|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 1|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 1 s,Sample 1 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:6|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA6h_1_S1_L002.bam,bam,7256542253.0,71846953.0,E MTAB 9193:cDNA6h 1 S1 L002,0:101,A:2096163385;C:1430325700;G:1560530043;T:2162265616;N:7257509,101,,,,2096163385,1430325700,1560530043,2162265616,7257509,ERX4155253,ERS4601291,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.92882,,0.12127,,0.81162,,0.51457,,101,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9902,ERR4194128,ERX4155256,ERS4601294,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 4,SAMEA6873731,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873731|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 4|age:13|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 4|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 4 s,Sample 4 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:13|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA13h_1_control_S1_L001.bam,bam,10785974123.0,106791823.0,E MTAB 9193:cDNA13h 1 control S1 L001,0:101,A:3007305661;C:2241057062;G:2505494392;T:2986021199;N:46095809,101,,,,3007305661,2241057062,2505494392,2986021199,46095809,ERX4155256,ERS4601294,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.67094,,0.07571,,0.92951,,0.5272,,101,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9903,ERR4194129,ERX4155256,ERS4601294,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 4,SAMEA6873731,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873731|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 4|age:13|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 4|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 4 s,Sample 4 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:13|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA13h_1_control_S1_L002.bam,bam,10595192294.0,104902894.0,E MTAB 9193:cDNA13h 1 control S1 L002,0:101,A:2971916419;C:2204229263;G:2390854035;T:2949877754;N:78314823,101,,,,2971916419,2204229263,2390854035,2949877754,78314823,ERX4155256,ERS4601294,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.67255,,0.08054,,0.91583,,0.52661,,101,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9904,ERR4194116,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_1_S3_L001.bam,bam,1622536412.0,16556494.0,E MTAB 9193:cDNA10h 1 S3 L001,0:98,A:491141175;C:317161060;G:354179755;T:459976409;N:78013,98,,,,491141175,317161060,354179755,459976409,78013,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93238,,0.13033,,0.89132,,0.47076,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9905,ERR4194117,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_1_S3_L002.bam,bam,1484328776.0,15146212.0,E MTAB 9193:cDNA10h 1 S3 L002,0:98,A:450782055;C:290088574;G:322801188;T:420570801;N:86158,98,,,,450782055,290088574,322801188,420570801,86158,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.92846,,0.13128,,0.89923,,0.46879,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9906,ERR4194118,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_1_S3_L003.bam,bam,1578833116.0,16110542.0,E MTAB 9193:cDNA10h 1 S3 L003,0:98,A:477600666;C:308260969;G:347303289;T:445467384;N:200808,98,,,,477600666,308260969,347303289,445467384,200808,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93107,,0.12965,,0.91265,,0.47375,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9907,ERR4194119,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_1_S3_L004.bam,bam,1859564994.0,18975153.0,E MTAB 9193:cDNA10h 1 S3 L004,0:98,A:562936790;C:364057256;G:406607636;T:525811595;N:151717,98,,,,562936790,364057256,406607636,525811595,151717,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93453,,0.1266,,0.87714,,0.46957,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9908,ERR4194120,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_2_S3_L001.bam,bam,1156341102.0,11799399.0,E MTAB 9193:cDNA10h 2 S3 L001,0:98,A:345857612;C:224453195;G:257551986;T:327969064;N:509245,98,,,,345857612,224453195,257551986,327969064,509245,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93863,,0.10744,,0.81984,,0.501,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9909,ERR4194121,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_2_S3_L002.bam,bam,1105219696.0,11277752.0,E MTAB 9193:cDNA10h 2 S3 L002,0:98,A:331051973;C:214369903;G:246546338;T:312897773;N:353709,98,,,,331051973,214369903,246546338,312897773,353709,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93941,,0.10818,,0.82211,,0.50079,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9910,ERR4194122,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_2_S3_L003.bam,bam,1105199606.0,11277547.0,E MTAB 9193:cDNA10h 2 S3 L003,0:98,A:331158619;C:214305131;G:246465559;T:312930408;N:339889,98,,,,331158619,214305131,246465559,312930408,339889,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93767,,0.10645,,0.82329,,0.50057,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9911,ERR4194123,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_2_S3_L004.bam,bam,1108707712.0,11313344.0,E MTAB 9193:cDNA10h 2 S3 L004,0:98,A:331374433;C:215925150;G:247131942;T:313865174;N:411013,98,,,,331374433,215925150,247131942,313865174,411013,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93827,,0.10842,,0.82031,,0.49241,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9912,ERR4194124,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_2_S3_L005.bam,bam,1110084612.0,11327394.0,E MTAB 9193:cDNA10h 2 S3 L005,0:98,A:332881960;C:215360330;G:247563319;T:313842331;N:436672,98,,,,332881960,215360330,247563319,313842331,436672,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93827,,0.10719,,0.8238,,0.50406,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9913,ERR4194125,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_2_S3_L006.bam,bam,1113812728.0,11365436.0,E MTAB 9193:cDNA10h 2 S3 L006,0:98,A:333112288;C:216649152;G:248341020;T:315338848;N:371420,98,,,,333112288,216649152,248341020,315338848,371420,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93843,,0.10675,,0.82079,,0.49284,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9914,ERR4194126,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_2_S3_L007.bam,bam,1119495748.0,11423426.0,E MTAB 9193:cDNA10h 2 S3 L007,0:98,A:335288339;C:217283719;G:249624836;T:316900388;N:398466,98,,,,335288339,217283719,249624836,316900388,398466,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93711,,0.10749,,0.82266,,0.49382,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9915,ERR4194127,ERX4155255,ERS4601293,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 3,SAMEA6873730,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873730|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 3|age:10|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 3|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 3 s,Sample 3 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:10|Experimental Factor: RNA interference:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA10h_2_S3_L008.bam,bam,1175946688.0,11999456.0,E MTAB 9193:cDNA10h 2 S3 L008,0:98,A:351364169;C:228318193;G:261971072;T:333863943;N:429311,98,,,,351364169,228318193,261971072,333863943,429311,ERX4155255,ERS4601293,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.93851,,0.10755,,0.82158,,0.49895,,98,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9916,ERR4194130,ERX4155257,ERS4601295,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 5,SAMEA6873732,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873732|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 5|age:13|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 5|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 5 s,Sample 5 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:13|Experimental Factor: RNA interference:morpholino mediated Gata5/6 knockdown,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA13h_2_gata56KD_S2_L001.bam,bam,7791309377.0,77141677.0,E MTAB 9193:cDNA13h 2 gata56KD S2 L001,0:101,A:2198242220;C:1593746618;G:1784167452;T:2181979820;N:33173267,101,,,,2198242220,1593746618,1784167452,2181979820,33173267,ERX4155257,ERS4601295,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.66736,,0.08039,,0.93026,,0.50796,,101,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 9917,ERR4194131,ERX4155257,ERS4601295,ERP122151,PRJEB38705,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E-MTAB-9193,Transcriptome Analysis,TgBACgata5:EGFP transgenic line was used to isolate mesendoderm cells enriched for cardiac lineage. Wild type embryos at 6 8 10 13 hpf and morpholinos injected Gata5/6 know down KD embryos at 13 hpf were pre screened for GFP signal and dissociated into single cell suspension in separate wells. GFP+ cells at each condition were isolated through fluorescent activated cell sorting FACS. Single cell cDNA libraries were constructed through the 10x Chromium Single Cell Gene Expression platform. Final sequencing was performed on an Illumina HiSeq 2500 platform Rapid Run Model. Note that the 10h single cell library was sequenced twice Named as cDNA10h 1* and cDNA10h 2* separately.,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,,Protocols: WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Sample 5,SAMEA6873732,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada",ENA FIRST PUBLIC:2020 12 31T11:11:47Z|ENA LAST UPDATE:2020 06 04T16:16:46Z|External Id:SAMEA6873732|INSDC center name:Developmental and Stem Cell Biology Sickkids Toronto Canada; Genetics and Genome Biology Sickkids Toronto Canada; Molecular Genetics University of Toronto Toronto Canada|INSDC first public:2020 12 31T11:11:47Z|INSDC last update:2020 06 04T16:16:46Z|INSDC status:public|Submitter Id:E MTAB 9193:Sample 5|age:13|broker name:ArrayExpress|common name:zebrafish|developmental stage:embryo stage|genotype:TgBACgata5: EGFPpd25|immunophenotype:GFP+|individual:embryo pool 100 200|organism part:mesendoderm|sample name:E MTAB 9193:Sample 5|scientific name:Danio rerio|sex:mixed,,,,,,,,,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,E MTAB 9193:Sample 5 s,Sample 5 s,Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,WT and Gata5/6KD TgBAC gata5: EGFP embryos were synchronized and dechorionated with pronase Sigma Cat# 11459643001 at desired stages. For embryos at gastrulation stages 6 hpf 8 hpf 10 hpf the dissociation was performed by incubating embryos in 200 μl calcium free Ringer solution 116 mM NaCl 2.6 mM KCl 5 mM HEPE pH 7.0 for 5 min followed by 500ul TrpLE GIBCO TrypLE Express Enzyme cat #: 12604 013 at room temperature. Dissociation was monitored under a dissecting scope and embryos were homogenized every 5min until single cell suspensions were generated. Embryos at the early segmentation stage 13 hpf were treated similarly but incubated with 500 ul of 0.25 Trypsin GIBCO Trypsin2.5% no phenol red cat#: 15090046/ EDTA instead of TrpLE for dissociation. post dissociation Cells were washed twice with DMEM 1% FBS. DAPI was added at a concentration of 5ug/ml to exclude dead cells right before the Fluorescence activated cell sorting FACS. FACS was performed on Sony SH800S Cell Sorter MoFlo XDP or MoFlo Astrios with a 100 μm nozzle by the SickKids UHN Flow and Mass Cytometry Facility. Around 20 000 to 50 000 gata5GFP+ cells were obtained in one FACS experiment. Single cell suspensions post FACS were loaded into the 10x machine and RNA was extracted based on Chromium Single Cell three prime Reagent Kits v2 protocol. Libraries were constructed using the 10x v2 chemistry.,Experimental Factor: age:13|Experimental Factor: RNA interference:morpholino mediated Gata5/6 knockdown,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina HiSeq 2500,,ERP122151,Illumina HiSeq 2500 sequencing; Single cell transcriptome analysis of gata5GFP labelled WT and Gata5/6 deficient cells from early gastrulation to early somitogenesis in zebrafish,ENA FIRST PUBLIC:2021 06 02|ENA LAST UPDATE:2021 12 01,cDNA13h_2_gata56KD_S2_L002.bam,bam,7658149967.0,75823267.0,E MTAB 9193:cDNA13h 2 gata56KD S2 L002,0:101,A:2172230233;C:1568805100;G:1703587704;T:2157181071;N:56345859,101,,,,2172230233,1568805100,1703587704,2157181071,56345859,ERX4155257,ERS4601295,ERA2667966,"Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive","Developmental and Stem Cell Biology, Sickkids, Toronto, Canada; Genetics and Genome Biology, Sickkids, Toronto, Canada; Molecular Genetics, University of Toronto, Toronto, Canada|European Nucleotide Archive",1,0.66565,,0.08597,,0.91804,,0.51772,,101,,B,,usable mapping rate,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Canada,2020-06-04,Multi-stage,Embryo,Embryo Imprecise,All anatomical structures 10060,ERR4795364,ERX4665135,ERS5281176,ERP124847,PRJEB41113,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E-MTAB-9727,Transcriptome Analysis,The mesothelium forms epithelial membranes that line the bodies cavities and surround the internal organs. Mesothelia widely contribute to organ homeostasis and regeneration and their dysregulation can result in congenital anomalies of the viscera ventral wall defects and mesothelioma tumors. Nonetheless the embryonic ontogeny and developmental regulation of mesothelium formation has remained uncharted. Here we combine genetic lineage tracing in toto live imaging and single cell transcriptomics in zebrafish to track mesothelial progenitor origins from the lateral plate mesoderm LPM. Our single cell analysis uncovers a post gastrulation gene expression signature centered on hand2 that delineates distinct progenitor populations within the forming LPM. Combining gene expression analysis and imaging of transgenic reporter zebrafish embryos we chart the origin of mesothelial progenitors to the lateral most hand2 expressing LPM and confirm evolutionary conservation in mouse. Our time lapse imaging of transgenic hand2 reporter embryos captures zebrafish mesothelium formation documenting the coordinated cell movements that form pericardium and visceral and parietal peritoneum. We establish that the primordial germ cells migrate associated with the forming mesothelium as ventral migration boundary. Functionally hand2 mutants fail to close the ventral mesothelium due to perturbed migration of mesothelium progenitors. Analyzing mouse and human mesothelioma tumors hypothesized to emerge from transformed mesothelium we find de novo expression of LPM associated transcription factors and in particular of Hand2 indicating the re initiation of a developmental transcriptional program in mesothelioma. Taken together our work outlines a genetic and developmental signature of mesothelial origins centered around Hand2 contributing to our understanding of mesothelial pathologies and mesothelioma.,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,,Protocols: Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Sample 4,E MTAB 9727:Sample 4,,isolate:not applicable|organism:Danio rerio|sex:mixed|age:10|developmental stage:tailbud stage|organism part:lateral plate mesoderm plate|genotype:drl:mCherry|ENA FIRST PUBLIC:2021 04 01|ENA LAST UPDATE:2021 09 01,,,,,,,,,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E MTAB 9727:Sample 4 s,Sample 4 s,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Experimental Factor: replicate:lateral plate mesoderm plate 4,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,RANDOM,SINGLE,ILLUMINA,NextSeq 500,,ERP124847,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,SN4_AH2TW3BGX5_S1_R1_cat.fastq.gz,fastq,5410723202.0,71707309.0,E MTAB 9727:Sample 4,0:75.46 1:0,A:1330416803;C:531269504;G:734031980;T:2814959249;N:45666,75,0,,,1330416803,531269504,734031980,2814959249,45666,ERX4665135,ERS5281176,ERA3048543,University of Zurich|European Nucleotide Archive,University of Zurich|European Nucleotide Archive,1,0.33614,,0.21532,,0.99019,,0.41002,,76,,B,,usable mapping rate,illumina,nextseq,unknown,random_priming,trueseq,sc,single_cell_plate,celseq,,Switzerland,2021-04-01,Gastrula,Embryo,Embryo Imprecise,All anatomical structures 10061,ERR4795365,ERX4665135,ERS5281176,ERP124847,PRJEB41113,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E-MTAB-9727,Transcriptome Analysis,The mesothelium forms epithelial membranes that line the bodies cavities and surround the internal organs. Mesothelia widely contribute to organ homeostasis and regeneration and their dysregulation can result in congenital anomalies of the viscera ventral wall defects and mesothelioma tumors. Nonetheless the embryonic ontogeny and developmental regulation of mesothelium formation has remained uncharted. Here we combine genetic lineage tracing in toto live imaging and single cell transcriptomics in zebrafish to track mesothelial progenitor origins from the lateral plate mesoderm LPM. Our single cell analysis uncovers a post gastrulation gene expression signature centered on hand2 that delineates distinct progenitor populations within the forming LPM. Combining gene expression analysis and imaging of transgenic reporter zebrafish embryos we chart the origin of mesothelial progenitors to the lateral most hand2 expressing LPM and confirm evolutionary conservation in mouse. Our time lapse imaging of transgenic hand2 reporter embryos captures zebrafish mesothelium formation documenting the coordinated cell movements that form pericardium and visceral and parietal peritoneum. We establish that the primordial germ cells migrate associated with the forming mesothelium as ventral migration boundary. Functionally hand2 mutants fail to close the ventral mesothelium due to perturbed migration of mesothelium progenitors. Analyzing mouse and human mesothelioma tumors hypothesized to emerge from transformed mesothelium we find de novo expression of LPM associated transcription factors and in particular of Hand2 indicating the re initiation of a developmental transcriptional program in mesothelioma. Taken together our work outlines a genetic and developmental signature of mesothelial origins centered around Hand2 contributing to our understanding of mesothelial pathologies and mesothelioma.,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,,Protocols: Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Sample 4,E MTAB 9727:Sample 4,,isolate:not applicable|organism:Danio rerio|sex:mixed|age:10|developmental stage:tailbud stage|organism part:lateral plate mesoderm plate|genotype:drl:mCherry|ENA FIRST PUBLIC:2021 04 01|ENA LAST UPDATE:2021 09 01,,,,,,,,,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E MTAB 9727:Sample 4 s,Sample 4 s,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Experimental Factor: replicate:lateral plate mesoderm plate 4,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,RANDOM,SINGLE,ILLUMINA,NextSeq 500,,ERP124847,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,SN4_AH2TW3BGX5_S1_R2_cat.fastq.gz,fastq,5414184547.0,71707309.0,E MTAB 9727:Sample 4 1,0:0 1:75.50,A:1582938104;C:1052565419;G:1177180395;T:1600161662;N:1338967,0,75,,,1582938104,1052565419,1177180395,1600161662,1338967,ERX4665135,ERS5281176,ERA3048543,University of Zurich|European Nucleotide Archive,University of Zurich|European Nucleotide Archive,1,0.84976,,0.28521,,0.85038,,0.5124,,75,,B,,usable mapping rate,illumina,nextseq,unknown,random_priming,trueseq,sc,single_cell_plate,celseq,,Switzerland,2021-04-01,Gastrula,Embryo,Embryo Imprecise,All anatomical structures 10062,ERR4795362,ERX4665134,ERS5281175,ERP124847,PRJEB41113,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E-MTAB-9727,Transcriptome Analysis,The mesothelium forms epithelial membranes that line the bodies cavities and surround the internal organs. Mesothelia widely contribute to organ homeostasis and regeneration and their dysregulation can result in congenital anomalies of the viscera ventral wall defects and mesothelioma tumors. Nonetheless the embryonic ontogeny and developmental regulation of mesothelium formation has remained uncharted. Here we combine genetic lineage tracing in toto live imaging and single cell transcriptomics in zebrafish to track mesothelial progenitor origins from the lateral plate mesoderm LPM. Our single cell analysis uncovers a post gastrulation gene expression signature centered on hand2 that delineates distinct progenitor populations within the forming LPM. Combining gene expression analysis and imaging of transgenic reporter zebrafish embryos we chart the origin of mesothelial progenitors to the lateral most hand2 expressing LPM and confirm evolutionary conservation in mouse. Our time lapse imaging of transgenic hand2 reporter embryos captures zebrafish mesothelium formation documenting the coordinated cell movements that form pericardium and visceral and parietal peritoneum. We establish that the primordial germ cells migrate associated with the forming mesothelium as ventral migration boundary. Functionally hand2 mutants fail to close the ventral mesothelium due to perturbed migration of mesothelium progenitors. Analyzing mouse and human mesothelioma tumors hypothesized to emerge from transformed mesothelium we find de novo expression of LPM associated transcription factors and in particular of Hand2 indicating the re initiation of a developmental transcriptional program in mesothelioma. Taken together our work outlines a genetic and developmental signature of mesothelial origins centered around Hand2 contributing to our understanding of mesothelial pathologies and mesothelioma.,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,,Protocols: Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Sample 3,E MTAB 9727:Sample 3,,isolate:not applicable|organism:Danio rerio|sex:mixed|age:10|developmental stage:tailbud stage|organism part:lateral plate mesoderm plate|genotype:drl:mCherry|ENA FIRST PUBLIC:2021 04 01|ENA LAST UPDATE:2021 09 01,,,,,,,,,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E MTAB 9727:Sample 3 s,Sample 3 s,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Experimental Factor: replicate:lateral plate mesoderm plate 3,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,RANDOM,SINGLE,ILLUMINA,NextSeq 500,,ERP124847,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,SN3_AHY3WGBGX3_S7_R1_cat.fastq.gz,fastq,4823193891.0,63965519.0,E MTAB 9727:Sample 3,0:75.40 1:0,A:1323978162;C:446831209;G:581746343;T:2470114091;N:524086,75,0,,,1323978162,446831209,581746343,2470114091,524086,ERX4665134,ERS5281175,ERA3048543,University of Zurich|European Nucleotide Archive,University of Zurich|European Nucleotide Archive,1,0.36549,,0.19722,,0.95552,,0.4702,,76,,B,,usable mapping rate,illumina,nextseq,unknown,random_priming,trueseq,sc,single_cell_plate,celseq,,Switzerland,2021-04-01,Gastrula,Embryo,Embryo Imprecise,All anatomical structures 10063,ERR4795363,ERX4665134,ERS5281175,ERP124847,PRJEB41113,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E-MTAB-9727,Transcriptome Analysis,The mesothelium forms epithelial membranes that line the bodies cavities and surround the internal organs. Mesothelia widely contribute to organ homeostasis and regeneration and their dysregulation can result in congenital anomalies of the viscera ventral wall defects and mesothelioma tumors. Nonetheless the embryonic ontogeny and developmental regulation of mesothelium formation has remained uncharted. Here we combine genetic lineage tracing in toto live imaging and single cell transcriptomics in zebrafish to track mesothelial progenitor origins from the lateral plate mesoderm LPM. Our single cell analysis uncovers a post gastrulation gene expression signature centered on hand2 that delineates distinct progenitor populations within the forming LPM. Combining gene expression analysis and imaging of transgenic reporter zebrafish embryos we chart the origin of mesothelial progenitors to the lateral most hand2 expressing LPM and confirm evolutionary conservation in mouse. Our time lapse imaging of transgenic hand2 reporter embryos captures zebrafish mesothelium formation documenting the coordinated cell movements that form pericardium and visceral and parietal peritoneum. We establish that the primordial germ cells migrate associated with the forming mesothelium as ventral migration boundary. Functionally hand2 mutants fail to close the ventral mesothelium due to perturbed migration of mesothelium progenitors. Analyzing mouse and human mesothelioma tumors hypothesized to emerge from transformed mesothelium we find de novo expression of LPM associated transcription factors and in particular of Hand2 indicating the re initiation of a developmental transcriptional program in mesothelioma. Taken together our work outlines a genetic and developmental signature of mesothelial origins centered around Hand2 contributing to our understanding of mesothelial pathologies and mesothelioma.,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,,Protocols: Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Sample 3,E MTAB 9727:Sample 3,,isolate:not applicable|organism:Danio rerio|sex:mixed|age:10|developmental stage:tailbud stage|organism part:lateral plate mesoderm plate|genotype:drl:mCherry|ENA FIRST PUBLIC:2021 04 01|ENA LAST UPDATE:2021 09 01,,,,,,,,,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E MTAB 9727:Sample 3 s,Sample 3 s,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Experimental Factor: replicate:lateral plate mesoderm plate 3,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,RANDOM,SINGLE,ILLUMINA,NextSeq 500,,ERP124847,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,SN3_AHY3WGBGX3_S7_R2_cat.fastq.gz,fastq,4828889391.0,63965519.0,E MTAB 9727:Sample 3 1,0:0 1:75.49,A:1434099697;C:964508763;G:893584575;T:1534727600;N:1968756,0,75,,,1434099697,964508763,893584575,1534727600,1968756,ERX4665134,ERS5281175,ERA3048543,University of Zurich|European Nucleotide Archive,University of Zurich|European Nucleotide Archive,1,0.85811,,0.26231,,0.82731,,0.48618,,76,,B,,usable mapping rate,illumina,nextseq,unknown,random_priming,trueseq,sc,single_cell_plate,celseq,,Switzerland,2021-04-01,Gastrula,Embryo,Embryo Imprecise,All anatomical structures 10064,ERR4795360,ERX4665133,ERS5281174,ERP124847,PRJEB41113,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E-MTAB-9727,Transcriptome Analysis,The mesothelium forms epithelial membranes that line the bodies cavities and surround the internal organs. Mesothelia widely contribute to organ homeostasis and regeneration and their dysregulation can result in congenital anomalies of the viscera ventral wall defects and mesothelioma tumors. Nonetheless the embryonic ontogeny and developmental regulation of mesothelium formation has remained uncharted. Here we combine genetic lineage tracing in toto live imaging and single cell transcriptomics in zebrafish to track mesothelial progenitor origins from the lateral plate mesoderm LPM. Our single cell analysis uncovers a post gastrulation gene expression signature centered on hand2 that delineates distinct progenitor populations within the forming LPM. Combining gene expression analysis and imaging of transgenic reporter zebrafish embryos we chart the origin of mesothelial progenitors to the lateral most hand2 expressing LPM and confirm evolutionary conservation in mouse. Our time lapse imaging of transgenic hand2 reporter embryos captures zebrafish mesothelium formation documenting the coordinated cell movements that form pericardium and visceral and parietal peritoneum. We establish that the primordial germ cells migrate associated with the forming mesothelium as ventral migration boundary. Functionally hand2 mutants fail to close the ventral mesothelium due to perturbed migration of mesothelium progenitors. Analyzing mouse and human mesothelioma tumors hypothesized to emerge from transformed mesothelium we find de novo expression of LPM associated transcription factors and in particular of Hand2 indicating the re initiation of a developmental transcriptional program in mesothelioma. Taken together our work outlines a genetic and developmental signature of mesothelial origins centered around Hand2 contributing to our understanding of mesothelial pathologies and mesothelioma.,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,,Protocols: Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Sample 2,E MTAB 9727:Sample 2,,isolate:not applicable|organism:Danio rerio|sex:mixed|age:10|developmental stage:tailbud stage|organism part:lateral plate mesoderm plate|genotype:drl:mCherry|ENA FIRST PUBLIC:2021 04 01|ENA LAST UPDATE:2021 09 01,,,,,,,,,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E MTAB 9727:Sample 2 s,Sample 2 s,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Experimental Factor: replicate:lateral plate mesoderm plate 2,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,RANDOM,SINGLE,ILLUMINA,NextSeq 500,,ERP124847,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,SN2_AHY3WGBGX3_S6_R1_cat.fastq.gz,fastq,5598371393.0,74235388.0,E MTAB 9727:Sample 2,0:75.41 1:0,A:1526486973;C:558020193;G:717587491;T:2795646081;N:630655,75,0,,,1526486973,558020193,717587491,2795646081,630655,ERX4665133,ERS5281174,ERA3048543,University of Zurich|European Nucleotide Archive,University of Zurich|European Nucleotide Archive,1,0.28059,,0.19252,,0.96404,,0.4874,,75,,B,,usable mapping rate,illumina,nextseq,unknown,random_priming,trueseq,sc,single_cell_plate,celseq,,Switzerland,2021-04-01,Gastrula,Embryo,Embryo Imprecise,All anatomical structures 10065,ERR4795361,ERX4665133,ERS5281174,ERP124847,PRJEB41113,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E-MTAB-9727,Transcriptome Analysis,The mesothelium forms epithelial membranes that line the bodies cavities and surround the internal organs. Mesothelia widely contribute to organ homeostasis and regeneration and their dysregulation can result in congenital anomalies of the viscera ventral wall defects and mesothelioma tumors. Nonetheless the embryonic ontogeny and developmental regulation of mesothelium formation has remained uncharted. Here we combine genetic lineage tracing in toto live imaging and single cell transcriptomics in zebrafish to track mesothelial progenitor origins from the lateral plate mesoderm LPM. Our single cell analysis uncovers a post gastrulation gene expression signature centered on hand2 that delineates distinct progenitor populations within the forming LPM. Combining gene expression analysis and imaging of transgenic reporter zebrafish embryos we chart the origin of mesothelial progenitors to the lateral most hand2 expressing LPM and confirm evolutionary conservation in mouse. Our time lapse imaging of transgenic hand2 reporter embryos captures zebrafish mesothelium formation documenting the coordinated cell movements that form pericardium and visceral and parietal peritoneum. We establish that the primordial germ cells migrate associated with the forming mesothelium as ventral migration boundary. Functionally hand2 mutants fail to close the ventral mesothelium due to perturbed migration of mesothelium progenitors. Analyzing mouse and human mesothelioma tumors hypothesized to emerge from transformed mesothelium we find de novo expression of LPM associated transcription factors and in particular of Hand2 indicating the re initiation of a developmental transcriptional program in mesothelioma. Taken together our work outlines a genetic and developmental signature of mesothelial origins centered around Hand2 contributing to our understanding of mesothelial pathologies and mesothelioma.,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,,Protocols: Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Sample 2,E MTAB 9727:Sample 2,,isolate:not applicable|organism:Danio rerio|sex:mixed|age:10|developmental stage:tailbud stage|organism part:lateral plate mesoderm plate|genotype:drl:mCherry|ENA FIRST PUBLIC:2021 04 01|ENA LAST UPDATE:2021 09 01,,,,,,,,,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E MTAB 9727:Sample 2 s,Sample 2 s,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Experimental Factor: replicate:lateral plate mesoderm plate 2,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,RANDOM,SINGLE,ILLUMINA,NextSeq 500,,ERP124847,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,SN2_AHY3WGBGX3_S6_R2_cat.fastq.gz,fastq,5600151371.0,74235388.0,E MTAB 9727:Sample 2 1,0:0 1:75.44,A:1850568176;C:1035622971;G:1071138281;T:1640475883;N:2346060,0,75,,,1850568176,1035622971,1071138281,1640475883,2346060,ERX4665133,ERS5281174,ERA3048543,University of Zurich|European Nucleotide Archive,University of Zurich|European Nucleotide Archive,1,0.7679,,0.30371,,0.82651,,0.43401,,75,,B,,usable mapping rate,illumina,nextseq,unknown,random_priming,trueseq,sc,single_cell_plate,celseq,,Switzerland,2021-04-01,Gastrula,Embryo,Embryo Imprecise,All anatomical structures 10066,ERR4795358,ERX4665132,ERS5281173,ERP124847,PRJEB41113,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E-MTAB-9727,Transcriptome Analysis,The mesothelium forms epithelial membranes that line the bodies cavities and surround the internal organs. Mesothelia widely contribute to organ homeostasis and regeneration and their dysregulation can result in congenital anomalies of the viscera ventral wall defects and mesothelioma tumors. Nonetheless the embryonic ontogeny and developmental regulation of mesothelium formation has remained uncharted. Here we combine genetic lineage tracing in toto live imaging and single cell transcriptomics in zebrafish to track mesothelial progenitor origins from the lateral plate mesoderm LPM. Our single cell analysis uncovers a post gastrulation gene expression signature centered on hand2 that delineates distinct progenitor populations within the forming LPM. Combining gene expression analysis and imaging of transgenic reporter zebrafish embryos we chart the origin of mesothelial progenitors to the lateral most hand2 expressing LPM and confirm evolutionary conservation in mouse. Our time lapse imaging of transgenic hand2 reporter embryos captures zebrafish mesothelium formation documenting the coordinated cell movements that form pericardium and visceral and parietal peritoneum. We establish that the primordial germ cells migrate associated with the forming mesothelium as ventral migration boundary. Functionally hand2 mutants fail to close the ventral mesothelium due to perturbed migration of mesothelium progenitors. Analyzing mouse and human mesothelioma tumors hypothesized to emerge from transformed mesothelium we find de novo expression of LPM associated transcription factors and in particular of Hand2 indicating the re initiation of a developmental transcriptional program in mesothelioma. Taken together our work outlines a genetic and developmental signature of mesothelial origins centered around Hand2 contributing to our understanding of mesothelial pathologies and mesothelioma.,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,,Protocols: Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Sample 1,E MTAB 9727:Sample 1,,isolate:not applicable|organism:Danio rerio|sex:mixed|age:10|developmental stage:tailbud stage|organism part:lateral plate mesoderm plate|genotype:drl:mCherry|ENA FIRST PUBLIC:2021 04 01|ENA LAST UPDATE:2021 09 01,,,,,,,,,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E MTAB 9727:Sample 1 s,Sample 1 s,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Experimental Factor: replicate:lateral plate mesoderm plate 1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,RANDOM,SINGLE,ILLUMINA,NextSeq 500,,ERP124847,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,SN1_AHY3WGBGX3_S5_R1_cat.fastq.gz,fastq,4996502316.0,66258508.0,E MTAB 9727:Sample 1,0:75.41 1:0,A:1330744174;C:451622042;G:591151500;T:2622422664;N:561936,75,0,,,1330744174,451622042,591151500,2622422664,561936,ERX4665132,ERS5281173,ERA3048543,University of Zurich|European Nucleotide Archive,University of Zurich|European Nucleotide Archive,1,0.29754,,0.17671,,0.9669,,0.45463,,75,,B,,usable mapping rate,illumina,nextseq,unknown,random_priming,trueseq,sc,single_cell_plate,celseq,,Switzerland,2021-04-01,Gastrula,Embryo,Embryo Imprecise,All anatomical structures 10067,ERR4795359,ERX4665132,ERS5281173,ERP124847,PRJEB41113,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E-MTAB-9727,Transcriptome Analysis,The mesothelium forms epithelial membranes that line the bodies cavities and surround the internal organs. Mesothelia widely contribute to organ homeostasis and regeneration and their dysregulation can result in congenital anomalies of the viscera ventral wall defects and mesothelioma tumors. Nonetheless the embryonic ontogeny and developmental regulation of mesothelium formation has remained uncharted. Here we combine genetic lineage tracing in toto live imaging and single cell transcriptomics in zebrafish to track mesothelial progenitor origins from the lateral plate mesoderm LPM. Our single cell analysis uncovers a post gastrulation gene expression signature centered on hand2 that delineates distinct progenitor populations within the forming LPM. Combining gene expression analysis and imaging of transgenic reporter zebrafish embryos we chart the origin of mesothelial progenitors to the lateral most hand2 expressing LPM and confirm evolutionary conservation in mouse. Our time lapse imaging of transgenic hand2 reporter embryos captures zebrafish mesothelium formation documenting the coordinated cell movements that form pericardium and visceral and parietal peritoneum. We establish that the primordial germ cells migrate associated with the forming mesothelium as ventral migration boundary. Functionally hand2 mutants fail to close the ventral mesothelium due to perturbed migration of mesothelium progenitors. Analyzing mouse and human mesothelioma tumors hypothesized to emerge from transformed mesothelium we find de novo expression of LPM associated transcription factors and in particular of Hand2 indicating the re initiation of a developmental transcriptional program in mesothelioma. Taken together our work outlines a genetic and developmental signature of mesothelial origins centered around Hand2 contributing to our understanding of mesothelial pathologies and mesothelioma.,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,,Protocols: Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Sample 1,E MTAB 9727:Sample 1,,isolate:not applicable|organism:Danio rerio|sex:mixed|age:10|developmental stage:tailbud stage|organism part:lateral plate mesoderm plate|genotype:drl:mCherry|ENA FIRST PUBLIC:2021 04 01|ENA LAST UPDATE:2021 09 01,,,,,,,,,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,E MTAB 9727:Sample 1 s,Sample 1 s,Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,Wildtype stain and drl:mCherry positive zebrafish embryos were grown until tailbud stage and chorions were removed by incubating in 1 mg/mL Pronase Roche followed by washing in E3 medium. Around 300 embryos were used to generate the sample. The E3 medium was replaced by 1X PBS and the embryos were stored on ice until further processing. The embryos were dissociated using 2 mg/mL collagenase IV Worthington in DMEM high glucose 4.5g/l and NaHCO3 without xxx glutamine and sodium pyruvate Sigma Aldrich and incubated for 5 min in a water bath at 37oC. The embryonic tissues were triturated into a single cell suspension by pipetting carefully up and down. When the embryos were not yet dissociated sufficiently they were incubated for another 5 min. Cells were filtered through a 35 μm cell strainer Falcon round bottom tubes with cell strainer cap and centrifuged at 6000 rpm for 30 sec. Cell pellets were resuspended in 1X HBSS Gibco containing 2% FBS and subjected to an additional round of centrifugation and resuspension. post washing the cells were resuspended in 1X PBS. drl:mCherry positive cells were sorted using a FACS Aria III cell sorter BD Bioscience. Cells were gated based on size and forward scattering to exclude debris and doublets. The gating for the negative population was determined based on wildtype tailbud staged embryos. See also Figure S2 for gate setting. The SORTseq single cell RNA sequencing protocol was carried out as described previously Muraro et al. 2016. Live mCherry positive single cells were sorted in four 384 well plates BioRad containing 5 μl of CEL Seq2 primer solution in mineral oil 24 bp polyT stretch a 4 bp random molecular barcode UMI a cell specific barcode the 5′Illumina TruSeq small RNA kit adaptor and a T7 promoter provided by Single Cell Discoveries. post sorting the plates were immediately placed on ice and stored at −80°C. In brief ERCC Spike in RNA 0.02 μL of 1:50000 dilution was added to each well before cell lysis with heat shocking. Reverse transcription and second strand synthesis reagents were dispensed using the Nanodrop II GC biotech. post generation of cDNA from the original mRNA all cells from one plate were pooled and the pooled sample was amplified linearly with in vitro transcription. The amplified RNA was then reverse transcribed to cDNA using a random hexamer primers Hashimshony et al. 2016. To generate sequencing libraries RPI series index primers were used for library PCR.,Experimental Factor: replicate:lateral plate mesoderm plate 1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,RANDOM,SINGLE,ILLUMINA,NextSeq 500,,ERP124847,NextSeq 500 sequencing; Hand2 delineates mesothelium progenitors and is reactivated in mesothelioma,ENA FIRST PUBLIC:2022 01 14|ENA LAST UPDATE:2022 01 14,SN1_AHY3WGBGX3_S5_R2_cat.fastq.gz,fastq,4999908389.0,66258508.0,E MTAB 9727:Sample 1 1,0:0 1:75.46,A:1591945117;C:933968124;G:986108614;T:1485824022;N:2062512,0,75,,,1591945117,933968124,986108614,1485824022,2062512,ERX4665132,ERS5281173,ERA3048543,University of Zurich|European Nucleotide Archive,University of Zurich|European Nucleotide Archive,1,0.81333,,0.2466,,0.83027,,0.51572,,75,,B,,usable mapping rate,illumina,nextseq,unknown,random_priming,trueseq,sc,single_cell_plate,celseq,,Switzerland,2021-04-01,Gastrula,Embryo,Embryo Imprecise,All anatomical structures 11753,ERR11758614,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S25_L001_R1_001.fastq.gz FliTp124hpf_S25_L001_R2_001.fastq.gz,fastq fastq,226833768.0,1800268.0,E MTAB 13196:FliTp124hpf S25 L001,0:28 1:98,A:65319978;C:50920193;G:49999849;T:60474280;N:119468,28,98,,,65319978,50920193,49999849,60474280,119468,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00122,0.88236,0.00056,0.09684,0.9978,0.89309,0.424,0.44186,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11754,ERR11758619,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S27_L001_R1_001.fastq.gz FliTp124hpf_S27_L001_R2_001.fastq.gz,fastq fastq,261098334.0,2072209.0,E MTAB 13196:FliTp124hpf S27 L001,0:28 1:98,A:76098436;C:58031830;G:57099955;T:69729759;N:138354,28,98,,,76098436,58031830,57099955,69729759,138354,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00109,0.87641,0.00062,0.0976,0.99837,0.90065,0.45555,0.48712,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11755,ERR11758589,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S16_L005_R1_001.fastq.gz FliTp124hpf_S16_L005_R2_001.fastq.gz,fastq fastq,1168367130.0,9272755.0,E MTAB 13196:FliTp124hpf S16 L005,0:28 1:98,A:323651598;C:269884286;G:268030176;T:306695030;N:106040,28,98,,,323651598,269884286,268030176,306695030,106040,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00491,0.90853,0.00131,0.07851,0.99019,0.84331,0.41536,0.48076,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11756,ERR11758638,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S22_L001_R1_001.fastq.gz FliTp124hpf_S22_L001_R2_001.fastq.gz,fastq fastq,864786636.0,6863386.0,E MTAB 13196:FliTp124hpf S22 L001,0:28 1:98,A:241767760;C:198370882;G:198049093;T:226508751;N:90150,28,98,,,241767760,198370882,198049093,226508751,90150,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00375,0.89002,0.00114,0.0769,0.99237,0.84563,0.41796,0.48995,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11757,ERR11758599,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S15_L005_R1_001.fastq.gz FliTp124hpf_S15_L005_R2_001.fastq.gz,fastq fastq,1795799502.0,14252377.0,E MTAB 13196:FliTp124hpf S15 L005,0:28 1:98,A:500590460;C:413239086;G:410401125;T:471402890;N:165941,28,98,,,500590460,413239086,410401125,471402890,165941,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00492,0.91242,0.0012,0.08044,0.99007,0.84668,0.42778,0.49291,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11758,ERR11758601,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S26_L001_R1_001.fastq.gz FliTp124hpf_S26_L001_R2_001.fastq.gz,fastq fastq,266141358.0,2112233.0,E MTAB 13196:FliTp124hpf S26 L001,0:28 1:98,A:76996100;C:59592346;G:58963461;T:70457732;N:131719,28,98,,,76996100,59592346,58963461,70457732,131719,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00106,0.88422,0.00046,0.09358,0.99782,0.89449,0.47826,0.48948,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11759,ERR11758630,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S14_L005_R1_001.fastq.gz FliTp124hpf_S14_L005_R2_001.fastq.gz,fastq fastq,1812847428.0,14387678.0,E MTAB 13196:FliTp124hpf S14 L005,0:28 1:98,A:502956890;C:417865079;G:416595454;T:475266679;N:163326,28,98,,,502956890,417865079,416595454,475266679,163326,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00483,0.91317,0.00123,0.07918,0.99036,0.84143,0.40704,0.4819,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11760,ERR11758603,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S13_L005_R1_001.fastq.gz FliTp124hpf_S13_L005_R2_001.fastq.gz,fastq fastq,1544281830.0,12256205.0,E MTAB 13196:FliTp124hpf S13 L005,0:28 1:98,A:428008915;C:356252081;G:354333187;T:405545992;N:141655,28,98,,,428008915,356252081,354333187,405545992,141655,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00507,0.91025,0.00138,0.07858,0.98987,0.84295,0.41793,0.4891,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11761,ERR11758613,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S21_L001_R1_001.fastq.gz FliTp124hpf_S21_L001_R2_001.fastq.gz,fastq fastq,761441436.0,6043186.0,E MTAB 13196:FliTp124hpf S21 L001,0:28 1:98,A:212876877;C:174700212;G:174244892;T:199537401;N:82054,28,98,,,212876877,174700212,174244892,199537401,82054,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00334,0.88899,0.00106,0.07762,0.99322,0.84476,0.42792,0.48783,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11762,ERR11758645,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S23_L001_R1_001.fastq.gz FliTp124hpf_S23_L001_R2_001.fastq.gz,fastq fastq,873938772.0,6936022.0,E MTAB 13196:FliTp124hpf S23 L001,0:28 1:98,A:245075115;C:199879929;G:199312177;T:229576663;N:94888,28,98,,,245075115,199879929,199312177,229576663,94888,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00361,0.88671,0.00104,0.07855,0.99255,0.84723,0.41141,0.4885,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11763,ERR11758598,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S28_L001_R1_001.fastq.gz FliTp124hpf_S28_L001_R2_001.fastq.gz,fastq fastq,164465532.0,1305282.0,E MTAB 13196:FliTp124hpf S28 L001,0:28 1:98,A:47319366;C:37063279;G:36394680;T:43602586;N:85621,28,98,,,47319366,37063279,36394680,43602586,85621,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00117,0.88222,0.00058,0.09358,0.99799,0.89217,0.54867,0.48545,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11764,ERR11758593,ERX11157721,ERS16172939,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,fli1tp1 24hpf,SAMEA114192246,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192246|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:fli1tp1 24hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:fli1:DsRed tp1:eGFP|geographic location country and/or sea:not collected|immunophenotype:fli1:DsRed+ tp1:eGFP+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:fli1tp1 24hpf|scientific name:Danio rerio|strain:fli1:DsRed tp1:eGFP,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:fli1tp1 24hpf p,fli1tp1 24hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,FliTp124hpf_S24_L001_R1_001.fastq.gz FliTp124hpf_S24_L001_R2_001.fastq.gz,fastq fastq,558365976.0,4431476.0,E MTAB 13196:FliTp124hpf S24 L001,0:28 1:98,A:156054630;C:128109738;G:127885708;T:146256146;N:59754,28,98,,,156054630,128109738,127885708,146256146,59754,ERX11157721,ERS16172939,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00345,0.8879,0.00104,0.07718,0.99322,0.84364,0.38266,0.49193,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11765,ERR11758635,ERX11157720,ERS16172938,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 wt 22hpf,SAMEA114192245,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192245|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 wt 22hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 wt 22hpf|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 wt 22hpf p,etv2 wt 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2Kaede_WT_S6_L001_R1_001.fastq.gz Etv2Kaede_WT_S6_L001_R2_001.fastq.gz,fastq fastq,1144014102.0,9079477.0,E MTAB 13196:Etv2Kaede WT S6 L001,0:28 1:98,A:316366230;C:260322813;G:259447166;T:307680623;N:197270,28,98,,,316366230,260322813,259447166,307680623,197270,ERX11157720,ERS16172938,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00336,0.89267,0.00137,0.13734,0.99545,0.81957,0.3734,0.53458,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11766,ERR11758622,ERX11157720,ERS16172938,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 wt 22hpf,SAMEA114192245,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192245|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 wt 22hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 wt 22hpf|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 wt 22hpf p,etv2 wt 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2Kaede_WT_S8_L001_R2_001.fastq.gz Etv2Kaede_WT_S8_L001_R1_001.fastq.gz,fastq fastq,919270926.0,7295801.0,E MTAB 13196:Etv2Kaede WT S8 L001,0:28 1:98,A:259787542;C:207541571;G:206711907;T:245072713;N:157193,28,98,,,259787542,207541571,206711907,245072713,157193,ERX11157720,ERS16172938,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00358,0.88757,0.00137,0.15368,0.99551,0.83378,0.36405,0.53733,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11767,ERR11758644,ERX11157720,ERS16172938,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 wt 22hpf,SAMEA114192245,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192245|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 wt 22hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 wt 22hpf|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 wt 22hpf p,etv2 wt 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2Kaede_WT_S5_L001_R2_001.fastq.gz Etv2Kaede_WT_S5_L001_R1_001.fastq.gz,fastq fastq,877658166.0,6965541.0,E MTAB 13196:Etv2Kaede WT S5 L001,0:28 1:98,A:243057461;C:199464116;G:198654377;T:236322700;N:159512,28,98,,,243057461,199464116,198654377,236322700,159512,ERX11157720,ERS16172938,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00328,0.88916,0.00127,0.13782,0.99559,0.81925,0.38227,0.53623,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11768,ERR11758628,ERX11157720,ERS16172938,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 wt 22hpf,SAMEA114192245,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192245|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 wt 22hpf|age:24|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:24 hpf|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 wt 22hpf|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 wt 22hpf p,etv2 wt 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2Kaede_WT_S7_L001_R1_001.fastq.gz Etv2Kaede_WT_S7_L001_R2_001.fastq.gz,fastq fastq,930443598.0,7384473.0,E MTAB 13196:Etv2Kaede WT S7 L001,0:28 1:98,A:258539610;C:211017108;G:209074684;T:251641766;N:170430,28,98,,,258539610,211017108,209074684,251641766,170430,ERX11157720,ERS16172938,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00355,0.88938,0.00148,0.14297,0.99569,0.83358,0.35626,0.53314,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 11769,ERR11758631,ERX11157719,ERS16172937,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 15s,SAMEA114192244,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192244|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 15s|age:16.5|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:15 somite stage|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 15s|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 15s p,etv2 15s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2_Traver_S10_L001_R2_001.fastq.gz Etv2_Traver_S10_L001_R1_001.fastq.gz,fastq fastq,1947733326.0,15458201.0,E MTAB 13196:Etv2 Traver S10 L001,0:28 1:98,A:532150077;C:434208725;G:472140578;T:508906834;N:327112,28,98,,,532150077,434208725,472140578,508906834,327112,ERX11157719,ERS16172937,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00677,0.92596,0.00142,0.07895,0.98526,0.85123,0.42802,0.53518,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11770,ERR11758646,ERX11157719,ERS16172937,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 15s,SAMEA114192244,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192244|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 15s|age:16.5|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:15 somite stage|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 15s|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 15s p,etv2 15s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2_Traver_S28_L001_R2_001.fastq.gz Etv2_Traver_S28_L001_R1_001.fastq.gz,fastq fastq,1091426920.0,8801830.0,E MTAB 13196:Etv2 Traver S28 L001,0:26 1:98,A:302665480;C:247712584;G:269795015;T:271081940;N:171901,26,98,,,302665480,247712584,269795015,271081940,171901,ERX11157719,ERS16172937,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00585,0.90012,0.00149,0.07225,0.98746,0.84916,0.39007,0.54873,26,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11771,ERR11758602,ERX11157719,ERS16172937,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 15s,SAMEA114192244,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192244|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 15s|age:16.5|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:15 somite stage|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 15s|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 15s p,etv2 15s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2_Traver_S25_L001_R2_001.fastq.gz Etv2_Traver_S25_L001_R1_001.fastq.gz,fastq fastq,983616732.0,7932393.0,E MTAB 13196:Etv2 Traver S25 L001,0:26 1:98,A:272974243;C:222949925;G:242884450;T:244652916;N:155198,26,98,,,272974243,222949925,242884450,244652916,155198,ERX11157719,ERS16172937,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00571,0.90139,0.00143,0.07484,0.98756,0.85019,0.40119,0.54977,26,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11772,ERR11758647,ERX11157719,ERS16172937,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 15s,SAMEA114192244,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192244|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 15s|age:16.5|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:15 somite stage|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 15s|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 15s p,etv2 15s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2_Traver_S27_L001_R2_001.fastq.gz Etv2_Traver_S27_L001_R1_001.fastq.gz,fastq fastq,1162223232.0,9372768.0,E MTAB 13196:Etv2 Traver S27 L001,0:26 1:98,A:322910431;C:262934167;G:286614718;T:289578468;N:185448,26,98,,,322910431,262934167,286614718,289578468,185448,ERX11157719,ERS16172937,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00563,0.89924,0.00128,0.07464,0.98762,0.85064,0.38525,0.53889,26,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11773,ERR11758634,ERX11157719,ERS16172937,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 15s,SAMEA114192244,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192244|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 15s|age:16.5|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:15 somite stage|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 15s|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 15s p,etv2 15s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2_Traver_S12_L001_R2_001.fastq.gz Etv2_Traver_S12_L001_R1_001.fastq.gz,fastq fastq,1979462268.0,15710018.0,E MTAB 13196:Etv2 Traver S12 L001,0:28 1:98,A:539088187;C:442520328;G:480420115;T:517077908;N:355730,28,98,,,539088187,442520328,480420115,517077908,355730,ERX11157719,ERS16172937,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00707,0.9236,0.00137,0.07727,0.98451,0.85021,0.41845,0.56136,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11774,ERR11758642,ERX11157719,ERS16172937,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 15s,SAMEA114192244,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192244|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 15s|age:16.5|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:15 somite stage|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 15s|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 15s p,etv2 15s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2_Traver_S9_L001_R2_001.fastq.gz Etv2_Traver_S9_L001_R1_001.fastq.gz,fastq fastq,1809560214.0,14361589.0,E MTAB 13196:Etv2 Traver S9 L001,0:28 1:98,A:493206820;C:403886293;G:438502430;T:473641472;N:323199,28,98,,,493206820,403886293,438502430,473641472,323199,ERX11157719,ERS16172937,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00668,0.92354,0.00141,0.0785,0.98543,0.84938,0.43326,0.52002,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11775,ERR11758623,ERX11157719,ERS16172937,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 15s,SAMEA114192244,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192244|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 15s|age:16.5|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:15 somite stage|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 15s|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 15s p,etv2 15s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2_Traver_S26_L001_R2_001.fastq.gz Etv2_Traver_S26_L001_R1_001.fastq.gz,fastq fastq,1074533780.0,8665595.0,E MTAB 13196:Etv2 Traver S26 L001,0:26 1:98,A:298569273;C:243430874;G:265536499;T:266825982;N:171152,26,98,,,298569273,243430874,265536499,266825982,171152,ERX11157719,ERS16172937,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00579,0.90109,0.00136,0.07564,0.98788,0.85017,0.3554,0.54362,26,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11776,ERR11758596,ERX11157719,ERS16172937,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,etv2 15s,SAMEA114192244,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192244|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:etv2 15s|age:16.5|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:15 somite stage|genotype:etv2:Kaede|geographic location country and/or sea:not collected|immunophenotype:etv2:Kaede+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:etv2 15s|scientific name:Danio rerio|strain:etv2:Kaede,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:etv2 15s p,etv2 15s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,Etv2_Traver_S11_L001_R2_001.fastq.gz Etv2_Traver_S11_L001_R1_001.fastq.gz,fastq fastq,2167279758.0,17200633.0,E MTAB 13196:Etv2 Traver S11 L001,0:28 1:98,A:591928396;C:482735357;G:524267488;T:567952272;N:396245,28,98,,,591928396,482735357,524267488,567952272,396245,ERX11157719,ERS16172937,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00635,0.92351,0.00136,0.07835,0.9865,0.85204,0.41521,0.53672,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11777,ERR11758595,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S36_L001_R2_001.fastq.gz drl_h2b-dendra_tb_S36_L001_R1_001.fastq.gz,fastq fastq,211593816.0,1679316.0,E MTAB 13196:drl h2b dendra tb S36 L001,0:28 1:98,A:62689430;C:45809168;G:45709128;T:57272091;N:113999,28,98,,,62689430,45809168,45709128,57272091,113999,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00192,0.91331,0.00072,0.14588,0.99675,0.89292,0.51304,0.63144,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11778,ERR11758629,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S37_L001_R2_001.fastq.gz drl_h2b-dendra_tb_S37_L001_R1_001.fastq.gz,fastq fastq,980164836.0,7779086.0,E MTAB 13196:drl h2b dendra tb S37 L001,0:28 1:98,A:281375011;C:216067640;G:222839674;T:259781180;N:101331,28,98,,,281375011,216067640,222839674,259781180,101331,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00817,0.89718,0.00237,0.12153,0.98912,0.82643,0.46403,0.64954,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11779,ERR11758618,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S39_L001_R2_001.fastq.gz drl_h2b-dendra_tb_S39_L001_R1_001.fastq.gz,fastq fastq,12118302.0,96177.0,E MTAB 13196:drl h2b dendra tb S39 L001,0:28 1:98,A:3543790;C:2662872;G:2728134;T:3182383;N:1123,28,98,,,3543790,2662872,2728134,3182383,1123,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00786,0.88963,0.0025,0.12543,0.99403,0.88635,0.50098,0.64694,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11780,ERR11758643,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S5_L005_R2_001.fastq.gz drl_h2b-dendra_tb_S5_L005_R1_001.fastq.gz,fastq fastq,2061022698.0,16357323.0,E MTAB 13196:drl h2b dendra tb S5 L005,0:28 1:98,A:587730953;C:457631700;G:470283474;T:545196979;N:179592,28,98,,,587730953,457631700,470283474,545196979,179592,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.01192,0.91661,0.00336,0.12397,0.98518,0.82568,0.45692,0.65555,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11781,ERR11758610,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S38_L001_R2_001.fastq.gz drl_h2b-dendra_tb_S38_L001_R1_001.fastq.gz,fastq fastq,924603120.0,7338120.0,E MTAB 13196:drl h2b dendra tb S38 L001,0:28 1:98,A:265987815;C:203824483;G:210024160;T:244670646;N:96016,28,98,,,265987815,203824483,210024160,244670646,96016,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00773,0.89881,0.00242,0.12145,0.98944,0.82948,0.50529,0.66568,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11782,ERR11758641,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S6_L005_R2_001.fastq.gz drl_h2b-dendra_tb_S6_L005_R1_001.fastq.gz,fastq fastq,1954661562.0,15513187.0,E MTAB 13196:drl h2b dendra tb S6 L005,0:28 1:98,A:558769608;C:433724557;G:445550100;T:516443984;N:173313,28,98,,,558769608,433724557,445550100,516443984,173313,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.0125,0.91697,0.00373,0.12359,0.98447,0.82558,0.4881,0.6456,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11783,ERR11758591,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S35_L001_R2_001.fastq.gz drl_h2b-dendra_tb_S35_L001_R1_001.fastq.gz,fastq fastq,4717188.0,37438.0,E MTAB 13196:drl h2b dendra tb S35 L001,0:28 1:98,A:1419430;C:1014265;G:1016661;T:1264642;N:2190,28,98,,,1419430,1014265,1016661,1264642,2190,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.0012,0.65482,0.00054,0.10783,0.99953,0.97157,0.625,0.63689,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11784,ERR11758606,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S34_L001_R1_001.fastq.gz drl_h2b-dendra_tb_S34_L001_R2_001.fastq.gz,fastq fastq,303645636.0,2409886.0,E MTAB 13196:drl h2b dendra tb S34 L001,0:28 1:98,A:90748559;C:65369482;G:65969002;T:81405258;N:153335,28,98,,,90748559,65369482,65969002,81405258,153335,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00228,0.91262,0.00099,0.14666,0.99638,0.89006,0.47177,0.63109,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11785,ERR11758640,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S40_L001_R2_001.fastq.gz drl_h2b-dendra_tb_S40_L001_R1_001.fastq.gz,fastq fastq,661361022.0,5248897.0,E MTAB 13196:drl h2b dendra tb S40 L001,0:28 1:98,A:190087869;C:145985661;G:150124621;T:175095762;N:67109,28,98,,,190087869,145985661,150124621,175095762,67109,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00785,0.89784,0.00251,0.12159,0.98948,0.83055,0.46095,0.64951,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11786,ERR11758605,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S7_L005_R2_001.fastq.gz drl_h2b-dendra_tb_S7_L005_R1_001.fastq.gz,fastq fastq,25157790.0,199665.0,E MTAB 13196:drl h2b dendra tb S7 L005,0:28 1:98,A:7330053;C:5600451;G:5635840;T:6589498;N:1948,28,98,,,7330053,5600451,5635840,6589498,1948,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.01201,0.91385,0.00341,0.12826,0.98595,0.85161,0.49226,0.64953,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11787,ERR11758600,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S8_L005_R2_001.fastq.gz drl_h2b-dendra_tb_S8_L005_R1_001.fastq.gz,fastq fastq,1422735804.0,11291554.0,E MTAB 13196:drl h2b dendra tb S8 L005,0:28 1:98,A:405788442;C:317299433;G:322206476;T:377317416;N:124037,28,98,,,405788442,317299433,322206476,377317416,124037,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.01226,0.91547,0.0037,0.12565,0.9849,0.83662,0.48279,0.64531,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11788,ERR11758616,ERX11157718,ERS16172936,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl tb,SAMEA114192243,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192243|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl tb|age:10|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:tail bud prominent stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl tb|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl tb p,drl tb p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_tb_S33_L001_R2_001.fastq.gz drl_h2b-dendra_tb_S33_L001_R1_001.fastq.gz,fastq fastq,328918212.0,2610462.0,E MTAB 13196:drl h2b dendra tb S33 L001,0:28 1:98,A:98036464;C:71090137;G:71650807;T:87969481;N:171323,28,98,,,98036464,71090137,71650807,87969481,171323,ERX11157718,ERS16172936,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00197,0.89969,0.00087,0.14269,0.99681,0.89134,0.49763,0.63651,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Undetermined,Embryo,Embryo Imprecise,All anatomical structures 11789,ERR11758588,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S12_L005_R2_001.fastq.gz drl_h2b-dendra_22hpf_S12_L005_R1_001.fastq.gz,fastq fastq,970032168.0,7698668.0,E MTAB 13196:drl h2b dendra 22hpf S12 L005,0:28 1:98,A:268176072;C:223973927;G:223251001;T:254545365;N:85803,28,98,,,268176072,223973927,223251001,254545365,85803,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00525,0.91336,0.00127,0.06812,0.98995,0.85395,0.40891,0.4918,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11790,ERR11758597,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S42_L001_R2_001.fastq.gz drl_h2b-dendra_22hpf_S42_L001_R1_001.fastq.gz,fastq fastq,716572206.0,5687081.0,E MTAB 13196:drl h2b dendra 22hpf S42 L001,0:28 1:98,A:198614388;C:164584363;G:164633280;T:188663484;N:76691,28,98,,,198614388,164584363,164633280,188663484,76691,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00366,0.8889,0.00092,0.06467,0.99261,0.84946,0.41353,0.49235,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11791,ERR11758637,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S44_L001_R2_001.fastq.gz drl_h2b-dendra_22hpf_S44_L001_R1_001.fastq.gz,fastq fastq,481216932.0,3819182.0,E MTAB 13196:drl h2b dendra 22hpf S44 L001,0:28 1:98,A:133704525;C:110630722;G:110586099;T:126246571;N:49015,28,98,,,133704525,110630722,110586099,126246571,49015,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00352,0.89199,0.00099,0.06481,0.99308,0.85251,0.50101,0.49137,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11792,ERR11758617,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S41_L001_R1_001.fastq.gz drl_h2b-dendra_22hpf_S41_L001_R2_001.fastq.gz,fastq fastq,690504570.0,5480195.0,E MTAB 13196:drl h2b dendra 22hpf S41 L001,0:28 1:98,A:191676994;C:159013582;G:158945690;T:180795403;N:72901,28,98,,,191676994,159013582,158945690,180795403,72901,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00342,0.89103,0.00091,0.06637,0.99289,0.85196,0.42362,0.49417,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11793,ERR11758627,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S10_L005_R2_001.fastq.gz drl_h2b-dendra_22hpf_S10_L005_R1_001.fastq.gz,fastq fastq,1443584898.0,11457023.0,E MTAB 13196:drl h2b dendra 22hpf S10 L005,0:28 1:98,A:398056083;C:333283767;G:332935857;T:379178009;N:131182,28,98,,,398056083,333283767,332935857,379178009,131182,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00494,0.91295,0.00128,0.06617,0.99101,0.84855,0.40479,0.49207,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11794,ERR11758609,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S40_L001_R2_001.fastq.gz drl_h2b-dendra_22hpf_S40_L001_R1_001.fastq.gz,fastq fastq,139186908.0,1104658.0,E MTAB 13196:drl h2b dendra 22hpf S40 L001,0:28 1:98,A:39986504;C:31169749;G:30838192;T:37121531;N:70932,28,98,,,39986504,31169749,30838192,37121531,70932,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00113,0.88601,0.00057,0.08145,0.99801,0.89808,0.48148,0.48722,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11795,ERR11758633,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S39_L001_R2_001.fastq.gz drl_h2b-dendra_22hpf_S39_L001_R1_001.fastq.gz,fastq fastq,226310742.0,1796117.0,E MTAB 13196:drl h2b dendra 22hpf S39 L001,0:28 1:98,A:64619137;C:51094203;G:50285631;T:60191319;N:120452,28,98,,,64619137,51094203,50285631,60191319,120452,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00116,0.89046,0.00054,0.07999,0.99797,0.89739,0.58119,0.48393,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11796,ERR11758604,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S9_L005_R1_001.fastq.gz drl_h2b-dendra_22hpf_S9_L005_R2_001.fastq.gz,fastq fastq,1419705504.0,11267504.0,E MTAB 13196:drl h2b dendra 22hpf S9 L005,0:28 1:98,A:390831393;C:328833478;G:328344998;T:371567158;N:128477,28,98,,,390831393,328833478,328344998,371567158,128477,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00519,0.91357,0.00132,0.0668,0.99042,0.84883,0.46254,0.47002,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11797,ERR11758608,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S43_L001_R2_001.fastq.gz drl_h2b-dendra_22hpf_S43_L001_R1_001.fastq.gz,fastq fastq,744179814.0,5906189.0,E MTAB 13196:drl h2b dendra 22hpf S43 L001,0:28 1:98,A:206745595;C:171274047;G:171089532;T:194990120;N:80520,28,98,,,206745595,171274047,171089532,194990120,80520,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.0033,0.89238,0.00092,0.06573,0.99348,0.85307,0.42184,0.45487,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11798,ERR11758625,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S11_L005_R2_001.fastq.gz drl_h2b-dendra_22hpf_S11_L005_R1_001.fastq.gz,fastq fastq,1552027554.0,12317679.0,E MTAB 13196:drl h2b dendra 22hpf S11 L005,0:28 1:98,A:428241149;C:359820303;G:356746163;T:407080418;N:139521,28,98,,,428241149,359820303,356746163,407080418,139521,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00528,0.91344,0.00122,0.06856,0.98946,0.85667,0.46289,0.49059,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11799,ERR11758594,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S37_L001_R2_001.fastq.gz drl_h2b-dendra_22hpf_S37_L001_R1_001.fastq.gz,fastq fastq,193604292.0,1536542.0,E MTAB 13196:drl h2b dendra 22hpf S37 L001,0:28 1:98,A:55140258;C:43966158;G:43414595;T:50989845;N:93436,28,98,,,55140258,43966158,43414595,50989845,93436,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00128,0.89527,0.00063,0.07949,0.99774,0.89538,0.424,0.48666,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11800,ERR11758639,ERX11157717,ERS16172935,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 22hpf,SAMEA114192242,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192242|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 22hpf|age:22|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:22 hpf|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 22hpf|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 22hpf p,drl 22hpf p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_22hpf_S38_L001_R2_001.fastq.gz drl_h2b-dendra_22hpf_S38_L001_R1_001.fastq.gz,fastq fastq,226896894.0,1800769.0,E MTAB 13196:drl h2b dendra 22hpf S38 L001,0:28 1:98,A:65107594;C:50761930;G:50291626;T:60619991;N:115753,28,98,,,65107594,50761930,50291626,60619991,115753,ERX11157717,ERS16172935,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00111,0.88883,0.00057,0.07885,0.99807,0.89412,0.53921,0.47439,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11801,ERR11758636,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S31_L001_R1_001.fastq.gz drl_h2b-dendra_12somites_S31_L001_R2_001.fastq.gz,fastq fastq,188521452.0,1496202.0,E MTAB 13196:drl h2b dendra 12somites S31 L001,0:28 1:98,A:54946745;C:39757518;G:41515822;T:52209939;N:91428,28,98,,,54946745,39757518,41515822,52209939,91428,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00175,0.90844,0.00064,0.15428,0.99636,0.86393,0.39351,0.52017,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11802,ERR11758612,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S35_L001_R2_001.fastq.gz drl_h2b-dendra_12somites_S35_L001_R1_001.fastq.gz,fastq fastq,671596632.0,5330132.0,E MTAB 13196:drl h2b dendra 12somites S35 L001,0:28 1:98,A:189747551;C:145545792;G:153208485;T:183026617;N:68187,28,98,,,189747551,145545792,153208485,183026617,68187,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00594,0.90285,0.00156,0.12933,0.98823,0.80955,0.40956,0.53154,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11803,ERR11758620,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S36_L001_R2_001.fastq.gz drl_h2b-dendra_12somites_S36_L001_R1_001.fastq.gz,fastq fastq,456194592.0,3620592.0,E MTAB 13196:drl h2b dendra 12somites S36 L001,0:28 1:98,A:129689128;C:98798602;G:103687645;T:123970211;N:49006,28,98,,,129689128,98798602,103687645,123970211,49006,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00578,0.90274,0.00162,0.13523,0.98859,0.81917,0.43296,0.52776,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11804,ERR11758607,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S1_L005_R2_001.fastq.gz drl_h2b-dendra_12somites_S1_L005_R1_001.fastq.gz,fastq fastq,1313559828.0,10425078.0,E MTAB 13196:drl h2b dendra 12somites S1 L005,0:28 1:98,A:369071579;C:285484861;G:298845646;T:360037984;N:119758,28,98,,,369071579,285484861,298845646,360037984,119758,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00866,0.92327,0.00213,0.13248,0.98374,0.80846,0.41836,0.52646,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11805,ERR11758621,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S3_L005_R2_001.fastq.gz drl_h2b-dendra_12somites_S3_L005_R1_001.fastq.gz,fastq fastq,1400830452.0,11117702.0,E MTAB 13196:drl h2b dendra 12somites S3 L005,0:28 1:98,A:392932148;C:304653102;G:320171450;T:382949722;N:124030,28,98,,,392932148,304653102,320171450,382949722,124030,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.0091,0.92525,0.00221,0.13204,0.98328,0.80683,0.39896,0.52474,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11806,ERR11758615,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S32_L001_R2_001.fastq.gz drl_h2b-dendra_12somites_S32_L001_R1_001.fastq.gz,fastq fastq,130164930.0,1033055.0,E MTAB 13196:drl h2b dendra 12somites S32 L001,0:28 1:98,A:38325421;C:27354135;G:28209607;T:36209402;N:66365,28,98,,,38325421,27354135,28209607,36209402,66365,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00164,0.90364,0.00061,0.16156,0.99651,0.87846,0.37878,0.51845,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11807,ERR11758590,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S34_L001_R2_001.fastq.gz drl_h2b-dendra_12somites_S34_L001_R1_001.fastq.gz,fastq fastq,806214402.0,6398527.0,E MTAB 13196:drl h2b dendra 12somites S34 L001,0:28 1:98,A:227716399;C:174839165;G:184278464;T:219297626;N:82748,28,98,,,227716399,174839165,184278464,219297626,82748,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00622,0.9021,0.00153,0.13047,0.98772,0.80866,0.40065,0.53454,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11808,ERR11758624,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S33_L001_R2_001.fastq.gz drl_h2b-dendra_12somites_S33_L001_R1_001.fastq.gz,fastq fastq,633634974.0,5028849.0,E MTAB 13196:drl h2b dendra 12somites S33 L001,0:28 1:98,A:179249875;C:137201579;G:144307176;T:172806546;N:69798,28,98,,,179249875,137201579,144307176,172806546,69798,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00585,0.90174,0.00155,0.12966,0.98831,0.80888,0.45862,0.52706,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11809,ERR11758626,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S4_L005_R2_001.fastq.gz drl_h2b-dendra_12somites_S4_L005_R1_001.fastq.gz,fastq fastq,927876096.0,7364096.0,E MTAB 13196:drl h2b dendra 12somites S4 L005,0:28 1:98,A:261732233;C:201837729;G:210685660;T:253535088;N:85386,28,98,,,261732233,201837729,210685660,253535088,85386,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00851,0.92329,0.00197,0.13519,0.98378,0.81665,0.41822,0.52852,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11810,ERR11758632,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S29_L001_R1_001.fastq.gz drl_h2b-dendra_12somites_S29_L001_R2_001.fastq.gz,fastq fastq,213074064.0,1691064.0,E MTAB 13196:drl h2b dendra 12somites S29 L001,0:28 1:98,A:62826305;C:44807633;G:46218609;T:59105445;N:116072,28,98,,,62826305,44807633,46218609,59105445,116072,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00163,0.90265,0.00072,0.1535,0.99701,0.87241,0.47674,0.51858,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11811,ERR11758592,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S2_L005_R2_001.fastq.gz drl_h2b-dendra_12somites_S2_L005_R1_001.fastq.gz,fastq fastq,1647474570.0,13075195.0,E MTAB 13196:drl h2b dendra 12somites S2 L005,0:28 1:98,A:462072903;C:358669639;G:376971859;T:449610611;N:149558,28,98,,,462072903,358669639,376971859,449610611,149558,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.0086,0.92221,0.00193,0.12995,0.98285,0.80275,0.43249,0.52848,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 11812,ERR11758611,ERX11157716,ERS16172934,ERP149744,PRJEB64563,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E-MTAB-13196,Transcriptome Analysis,Development of the dorsal aorta is a key step in the establishment of the adult blood forming system since hematopoietic stem and progenitor cells HSPCs arise from ventral aortic endothelium in all vertebrate animals studied. Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. Here we profile the transcriptome of the earliest detectable endothelial cells ECs during zebrafish embryogenesis to demonstrate that tissue specific EC programs initiate much earlier than previously appreciated by the end of gastrulation. Classic studies in the chick embryo showed that paraxial mesoderm generates a subset of somite derived endothelial cells SDECs that incorporate into the dorsal aorta to replace HSPCs as they exit the aorta and enter circulation. We describe a conserved program in the zebrafish where a rare population of endothelial precursors delaminates from the dermomyotome to incorporate exclusively into the developing dorsal aorta. Whereas SDECs lack hematopoietic potential they act as a local niche to support the emergence of HSPCs from neighboring hemogenic endothelium. Thus at least three subsets of ECs contribute to the developing dorsal aorta: vascular ECs hemogenic ECs and SDECs. Taken together our findings indicate that the distinct spatial origins of endothelial precursors dictate different cellular potentials within the developing dorsal aorta.,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,,Protocols: Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3ʹ GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,drl 12s,SAMEA114192241,Institute of Molecular Genetics of the Czech Academy of Sciences,ENA FIRST PUBLIC:2023 08 01T00:17:16Z|ENA LAST UPDATE:2023 08 01T00:17:16Z|External Id:SAMEA114192241|INSDC center alias:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC center name:Institute of Molecular Genetics of the Czech Academy of Sciences|INSDC first public:2023 08 01T00:17:16Z|INSDC last update:2023 08 01T00:17:16Z|INSDC status:public|Submitter Id:E MTAB 13196:drl 12s|age:15|broker name:ArrayExpress|cell type:endothelial cell|collection date:not collected|common name:zebrafish|developmental stage:12 somite stage|genotype:drl:H2B Dendra2|geographic location country and/or sea:not collected|immunophenotype:drl:H2B Dendra2+|isolate:not applicable|organism part:embryo|sample name:E MTAB 13196:drl 12s|scientific name:Danio rerio|strain:drl:H2B Dendra2,,,,,,,,,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,E MTAB 13196:drl 12s p,drl 12s p,Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,Dechorionated embryos were collected at defined stages dissociated by pipetting centrifugation at 300g for 5 minutes washed once with PBS and sorted by FACS. Total cell concentration and viability were determined using a TC20 Automated Cell Counter Bio Rad. Samples were then re suspended in 1x PBS with 0.05% BSA at 800 3000 cells per ml. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation. Samples were loaded on the 10x Chromium system with a target of 4 000 cells. Chromium Single Cell 3สน GEM Library & Gel Bead Kit v2 or v3 was used for library preparation.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,Oligo-dT,PAIRED,ILLUMINA,Illumina HiSeq 2500,,ERP149744,Illumina HiSeq 2500 paired end sequencing; Single cell RNA seq 10x Chromium of FACS sorted drl:H2B Dendra2 etv2:Kaede fli1:DsRed and tp1:eGFP transgenic zebrafish embryos,ENA FIRST PUBLIC:2023 08 01|ENA LAST UPDATE:2023 08 01,drl_h2b-dendra_12somites_S30_L001_R1_001.fastq.gz drl_h2b-dendra_12somites_S30_L001_R2_001.fastq.gz,fastq fastq,223279938.0,1772063.0,E MTAB 13196:drl h2b dendra 12somites S30 L001,0:28 1:98,A:64875575;C:47356253;G:49541812;T:61396530;N:109768,28,98,,,64875575,47356253,49541812,61396530,109768,ERX11157716,ERS16172934,ERA25628220,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,Institute of Molecular Genetics of the Czech Academy of Sciences|European Nucleotide Archive,2,0.00168,0.90617,0.00068,0.15194,0.99669,0.86052,0.46907,0.52824,28,98,T,B,sc-like readlen,illumina,hiseq_era,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,Czech Republic,2023-08-01,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 25127,SRR25610724,SRX21337840,SRS18583009,SRP454647,PRJNA1004574,Gene expression profile at single cell level of mitfa:GFP labelled zebrafish cells at 24hpf,GSE240655,Transcriptome Analysis,Melanocytes of the skin have traditionally been viewed as a homogeneous population however recent findings suggest the existence of distinct cell states within the melanocyte population. To investigate this further we employed the zebrafish as a valuable model system for studying melanocyte biology. The zebrafish offers advantages such as its transparent nature and the availability of transgenic lines that allow specific labeling of melanocytes. In our study we utilized a transgenic zebrafish line Tgmifa:GFP that expresses green fluorescent protein GFP under the control of a melanocyte specific promoter mitfa labelling only those cells in which mitfa promoter is active. We then performed single cell RNA sequencing scRNA seq analysis to explore the diversity of mitfa:GFP positive cells. Overall design: Tgmitfa:GFP zebrafish embryos were raised till 24 hpf and then the cells were isolated. The cells expressing mitfa:GFP were then sorted into low and high GFP population using a flow cytometer,parent bioproject:PRJNA975369,pubmed:39163475,,mitfa high zf scRNAseq,GSM7706847,,tissue:mitfa:GFP+ cells|genotype:Tgmitfa:GFP|cell type:mitfa:GFP+ cells|population:mitfa:GFP high|age:24 hpf loc name:missing|collection date:missing,mitfa high zf scRNAseq,The demultiplexing barcode processing gene counting and aggregation were done using the Cell Ranger software v6.1.2 https://support.10xgenomics.com/single cell gene expression/software/pipelines/latest/what is cell ranger Assembly: GRCz11 Supplementary files format and content: Tab separated values files and matrix files,mitfa:GFP+ cells,,Tgmitfa:GFP zebrafish embryos at 24hpf were dechorinated using 5 mg/ml pronase for 10 15 min deyolked in Ringer's solution ice cold using a micropipette tip and spun at 100 g for 2 min at 4°C . The embryo bodies were trypsinized using TrypLE Express for 15 or 30 min at room temperature post discarding the supernatent. Clumps were removed by passing the cells through a 70 μm cell strainer and washing twice with ice cold phosphate buffered saline. The cells expressing low and high levels of mitfa:GFP were then sorted using a flow cytometer and taken for library preparation. Libraries was prepared according to the manufacter’s instructions single cell 3’ v3.1 single index protocol 10x Genomics. Briefly 24hpf mitfa:GFP low and high zebrafish cells were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA which contains an Ilumina R1 primer sequence Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with Silane DynaBeads amplified by PCR and the apropiated sized fragments were selected with SPRIselect reagent for subsequent library construction. During the library construction Ilumina R2 primer sequence paired end constructs with P5 and P7 sequences and sample index were added.,,genotype:Tgmitfa:GFP|cell type:mitfa:GFP+ cells|population:mitfa:GFP high|age:24 hpf,GSM7706847,GSM7706847: mitfa high zf scRNAseq; Danio rerio; RNA Seq,GSM7706847 r1,GSM7706847,1,Tgmitfa:GFP zebrafish embryos at 24hpf were dechorinated using 5 mg/ml pronase for 10 15 min deyolked in Ringer's solution ice cold using a micropipette tip and spun at 100 g for 2 min at 4°C . The embryo bodies were trypsinized using TrypLE Express for 15 or 30 min at room temperature post discarding the supernatent. Clumps were removed by passing the cells through a 70 μm cell strainer and washing twice with ice cold phosphate buffered saline. The cells expressing low and high levels of mitfa:GFP were then sorted using a flow cytometer and taken for library preparation. Libraries was prepared according to the manufacter's instructions single cell three prime v3.1 single index protocol 10x Genomics. Briefly 24hpf mitfa:GFP low and high zebrafish cells were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA which contains an Ilumina R1 primer sequence Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with Silane DynaBeads amplified by PCR and the apropiated sized fragments were selected with SPRIselect reagent for subsequent library construction. During the library construction Ilumina R2 primer sequence paired end constructs with P5 and P7 sequences and sample index were added.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP454647,,loader:fastq load.py,HM_S4_L001_I1_001.fastq.gz HM_S4_L001_R1_001.fastq.gz HM_S4_L001_R2_001.fastq.gz,fastq fastq fastq,24842565758.0,195610754.0,GSM7706847 r1,0:8 1:28 2:91,A:5175410152;C:3650416721;G:4658958024;T:4315769305;N:24412,8,28,91,,5175410152,3650416721,4658958024,4315769305,24412,SRX21337840,SRS18583009,SRA1691286,"Pigment Cell Biology Lab, CSIR-IGIB","Pigment Cell Biology Lab, CSIR-IGIB",1,0.84133,,0.13672,,0.84756,,0.52135,,91,,B,,usable mapping rate,illumina,nextseq_v2,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,India,2023-08-11,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 25128,SRR25610725,SRX21337839,SRS18583008,SRP454647,PRJNA1004574,Gene expression profile at single cell level of mitfa:GFP labelled zebrafish cells at 24hpf,GSE240655,Transcriptome Analysis,Melanocytes of the skin have traditionally been viewed as a homogeneous population however recent findings suggest the existence of distinct cell states within the melanocyte population. To investigate this further we employed the zebrafish as a valuable model system for studying melanocyte biology. The zebrafish offers advantages such as its transparent nature and the availability of transgenic lines that allow specific labeling of melanocytes. In our study we utilized a transgenic zebrafish line Tgmifa:GFP that expresses green fluorescent protein GFP under the control of a melanocyte specific promoter mitfa labelling only those cells in which mitfa promoter is active. We then performed single cell RNA sequencing scRNA seq analysis to explore the diversity of mitfa:GFP positive cells. Overall design: Tgmitfa:GFP zebrafish embryos were raised till 24 hpf and then the cells were isolated. The cells expressing mitfa:GFP were then sorted into low and high GFP population using a flow cytometer,parent bioproject:PRJNA975369,pubmed:39163475,,mitfa low zf scRNAseq,GSM7706846,,tissue:mitfa:GFP+ cells|genotype:Tgmitfa:GFP|cell type:mitfa:GFP+ cells|population:mitfa:GFP low|age:24 hpf loc name:missing|collection date:missing,mitfa low zf scRNAseq,The demultiplexing barcode processing gene counting and aggregation were done using the Cell Ranger software v6.1.2 https://support.10xgenomics.com/single cell gene expression/software/pipelines/latest/what is cell ranger Assembly: GRCz11 Supplementary files format and content: Tab separated values files and matrix files,mitfa:GFP+ cells,,Tgmitfa:GFP zebrafish embryos at 24hpf were dechorinated using 5 mg/ml pronase for 10 15 min deyolked in Ringer's solution ice cold using a micropipette tip and spun at 100 g for 2 min at 4°C . The embryo bodies were trypsinized using TrypLE Express for 15 or 30 min at room temperature post discarding the supernatent. Clumps were removed by passing the cells through a 70 μm cell strainer and washing twice with ice cold phosphate buffered saline. The cells expressing low and high levels of mitfa:GFP were then sorted using a flow cytometer and taken for library preparation. Libraries was prepared according to the manufacter’s instructions single cell 3’ v3.1 single index protocol 10x Genomics. Briefly 24hpf mitfa:GFP low and high zebrafish cells were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA which contains an Ilumina R1 primer sequence Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with Silane DynaBeads amplified by PCR and the apropiated sized fragments were selected with SPRIselect reagent for subsequent library construction. During the library construction Ilumina R2 primer sequence paired end constructs with P5 and P7 sequences and sample index were added.,,genotype:Tgmitfa:GFP|cell type:mitfa:GFP+ cells|population:mitfa:GFP low|age:24 hpf,GSM7706846,GSM7706846: mitfa low zf scRNAseq; Danio rerio; RNA Seq,GSM7706846 r1,GSM7706846,1,Tgmitfa:GFP zebrafish embryos at 24hpf were dechorinated using 5 mg/ml pronase for 10 15 min deyolked in Ringer's solution ice cold using a micropipette tip and spun at 100 g for 2 min at 4°C . The embryo bodies were trypsinized using TrypLE Express for 15 or 30 min at room temperature post discarding the supernatent. Clumps were removed by passing the cells through a 70 μm cell strainer and washing twice with ice cold phosphate buffered saline. The cells expressing low and high levels of mitfa:GFP were then sorted using a flow cytometer and taken for library preparation. Libraries was prepared according to the manufacter's instructions single cell three prime v3.1 single index protocol 10x Genomics. Briefly 24hpf mitfa:GFP low and high zebrafish cells were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA which contains an Ilumina R1 primer sequence Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with Silane DynaBeads amplified by PCR and the apropiated sized fragments were selected with SPRIselect reagent for subsequent library construction. During the library construction Ilumina R2 primer sequence paired end constructs with P5 and P7 sequences and sample index were added.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP454647,,loader:fastq load.py,LM_S3_L001_R2_001.fastq.gz LM_S3_L001_R1_001.fastq.gz LM_S3_L001_I1_001.fastq.gz,fastq fastq fastq,17519211850.0,137946550.0,GSM7706846 r1,0:8 1:28 2:91,A:3674575574;C:2564940740;G:3313017210;T:3000585838;N:16688,8,28,91,,3674575574,2564940740,3313017210,3000585838,16688,SRX21337839,SRS18583008,SRA1691286,"Pigment Cell Biology Lab, CSIR-IGIB","Pigment Cell Biology Lab, CSIR-IGIB",1,0.81163,,0.13698,,0.859,,0.52032,,91,,B,,usable mapping rate,illumina,nextseq_v2,unknown,poly_a,unknown,sc,single_cell_droplet,10x,,India,2023-08-11,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 25129,SRR25619749,SRX21346683,SRS18591743,SRP454714,PRJNA1004663,Single cell analysis of Rohon Beard neurons implicates Fgf signaling in axon maintenance and cell survival,GSE240721,Other,Peripheral sensory neurons are a critical part of the nervous system that transmit a multitude of sensory stimuli to the central nervous system. During larval and juvenile stages in zebrafish this function is mediated by Rohon Beard somatosensory neurons RBs. RBs are optically accessible and amenable to experimental manipulation making them a powerful system for mechanistic investigation of sensory neurons. Previous studies provided evidence that RBs fall into multiple subclasses; however the number and molecular make up of these potential RB subtypes have not been well defined. Using a single cell RNA sequencing scRNA seq approach we demonstrate that larval RBs in zebrafish fall into three largely non overlapping classes of neurons. We also show that RBs are molecularly distinct from trigeminal neurons in zebrafish. Cross species transcriptional analysis indicates that one RB subclass is similar to a mammalian group of A fiber sensory neurons. Another RB subclass is predicted to sense multiple modalities including mechanical stimulation and chemical irritants. We leveraged our scRNA seq data to determine that the fibroblast growth factor Fgf pathway is active in RBs. Pharmacological and genetic inhibition of this pathway led to defects in axon maintenance and RB cell death. Moreover this phenotype can be phenocopied by treatment with an FDA approved Fgf inhibitor dovitinib which is used in clinic and causes peripheral neuropathy. Importantly dovitinib mediated axon loss can be suppressed by loss of Sarm1 a positive regulator of neuronal cell death and axonal injury. This offers a molecular target for future clinical intervention to fight neurotoxic effects of this drug. Overall design: Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq,GSM7708237,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:30 hpf loc name:missing|collection date:missing,30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:30 hpf,GSM7708237,GSM7708237: 30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq; Danio rerio; RNA Seq,GSM7708237 r1,GSM7708237,1,Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP454714,,loader:fastq load.py,CEL201106AN_WT-2_S20_L004_R2_001.fastq.gz CEL201106AN_WT-2_S20_L004_R1_001.fastq.gz CEL201106AN_WT-2_S20_L004_I1_001.fastq.gz,fastq fastq fastq,17931740743.0,141194809.0,GSM7708237 r1,0:8 1:28 2:91,A:3982504087;C:2545259636;G:2793618614;T:3526744725;N:600557,8,28,91,,3982504087,2545259636,2793618614,3526744725,600557,SRX21346683,SRS18591743,SRA1691311,Oregon Health and Science Univ,Oregon Health and Science Univ,1,0.87401,,0.26924,,0.7517,,0.5102,,91,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2023-08-11,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 25130,SRR25619750,SRX21346683,SRS18591743,SRP454714,PRJNA1004663,Single cell analysis of Rohon Beard neurons implicates Fgf signaling in axon maintenance and cell survival,GSE240721,Other,Peripheral sensory neurons are a critical part of the nervous system that transmit a multitude of sensory stimuli to the central nervous system. During larval and juvenile stages in zebrafish this function is mediated by Rohon Beard somatosensory neurons RBs. RBs are optically accessible and amenable to experimental manipulation making them a powerful system for mechanistic investigation of sensory neurons. Previous studies provided evidence that RBs fall into multiple subclasses; however the number and molecular make up of these potential RB subtypes have not been well defined. Using a single cell RNA sequencing scRNA seq approach we demonstrate that larval RBs in zebrafish fall into three largely non overlapping classes of neurons. We also show that RBs are molecularly distinct from trigeminal neurons in zebrafish. Cross species transcriptional analysis indicates that one RB subclass is similar to a mammalian group of A fiber sensory neurons. Another RB subclass is predicted to sense multiple modalities including mechanical stimulation and chemical irritants. We leveraged our scRNA seq data to determine that the fibroblast growth factor Fgf pathway is active in RBs. Pharmacological and genetic inhibition of this pathway led to defects in axon maintenance and RB cell death. Moreover this phenotype can be phenocopied by treatment with an FDA approved Fgf inhibitor dovitinib which is used in clinic and causes peripheral neuropathy. Importantly dovitinib mediated axon loss can be suppressed by loss of Sarm1 a positive regulator of neuronal cell death and axonal injury. This offers a molecular target for future clinical intervention to fight neurotoxic effects of this drug. Overall design: Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq,GSM7708237,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:30 hpf loc name:missing|collection date:missing,30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:30 hpf,GSM7708237,GSM7708237: 30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq; Danio rerio; RNA Seq,GSM7708237 r1,GSM7708237,1,Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP454714,,loader:fastq load.py,CEL201106AN_WT-2_S19_L004_I1_001.fastq.gz CEL201106AN_WT-2_S19_L004_R1_001.fastq.gz CEL201106AN_WT-2_S19_L004_R2_001.fastq.gz,fastq fastq fastq,15740158766.0,123938258.0,GSM7708237 r2,0:8 1:28 2:91,A:3499017196;C:2231848518;G:2450171440;T:3096822046;N:522278,8,28,91,,3499017196,2231848518,2450171440,3096822046,522278,SRX21346683,SRS18591743,SRA1691311,Oregon Health and Science Univ,Oregon Health and Science Univ,1,0.87457,,0.27073,,0.75278,,0.50801,,91,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2023-08-11,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 25131,SRR25619751,SRX21346683,SRS18591743,SRP454714,PRJNA1004663,Single cell analysis of Rohon Beard neurons implicates Fgf signaling in axon maintenance and cell survival,GSE240721,Other,Peripheral sensory neurons are a critical part of the nervous system that transmit a multitude of sensory stimuli to the central nervous system. During larval and juvenile stages in zebrafish this function is mediated by Rohon Beard somatosensory neurons RBs. RBs are optically accessible and amenable to experimental manipulation making them a powerful system for mechanistic investigation of sensory neurons. Previous studies provided evidence that RBs fall into multiple subclasses; however the number and molecular make up of these potential RB subtypes have not been well defined. Using a single cell RNA sequencing scRNA seq approach we demonstrate that larval RBs in zebrafish fall into three largely non overlapping classes of neurons. We also show that RBs are molecularly distinct from trigeminal neurons in zebrafish. Cross species transcriptional analysis indicates that one RB subclass is similar to a mammalian group of A fiber sensory neurons. Another RB subclass is predicted to sense multiple modalities including mechanical stimulation and chemical irritants. We leveraged our scRNA seq data to determine that the fibroblast growth factor Fgf pathway is active in RBs. Pharmacological and genetic inhibition of this pathway led to defects in axon maintenance and RB cell death. Moreover this phenotype can be phenocopied by treatment with an FDA approved Fgf inhibitor dovitinib which is used in clinic and causes peripheral neuropathy. Importantly dovitinib mediated axon loss can be suppressed by loss of Sarm1 a positive regulator of neuronal cell death and axonal injury. This offers a molecular target for future clinical intervention to fight neurotoxic effects of this drug. Overall design: Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq,GSM7708237,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:30 hpf loc name:missing|collection date:missing,30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:30 hpf,GSM7708237,GSM7708237: 30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq; Danio rerio; RNA Seq,GSM7708237 r1,GSM7708237,1,Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP454714,,loader:fastq load.py,CEL201106AN_WT-2_S18_L004_R2_001.fastq.gz CEL201106AN_WT-2_S18_L004_R1_001.fastq.gz CEL201106AN_WT-2_S18_L004_I1_001.fastq.gz,fastq fastq fastq,14146022254.0,111386002.0,GSM7708237 r3,0:8 1:28 2:91,A:3147384451;C:2003642594;G:2200506573;T:2784120122;N:472442,8,28,91,,3147384451,2003642594,2200506573,2784120122,472442,SRX21346683,SRS18591743,SRA1691311,Oregon Health and Science Univ,Oregon Health and Science Univ,1,0.873,,0.27005,,0.75122,,0.5172,,91,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2023-08-11,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 25132,SRR25619752,SRX21346683,SRS18591743,SRP454714,PRJNA1004663,Single cell analysis of Rohon Beard neurons implicates Fgf signaling in axon maintenance and cell survival,GSE240721,Other,Peripheral sensory neurons are a critical part of the nervous system that transmit a multitude of sensory stimuli to the central nervous system. During larval and juvenile stages in zebrafish this function is mediated by Rohon Beard somatosensory neurons RBs. RBs are optically accessible and amenable to experimental manipulation making them a powerful system for mechanistic investigation of sensory neurons. Previous studies provided evidence that RBs fall into multiple subclasses; however the number and molecular make up of these potential RB subtypes have not been well defined. Using a single cell RNA sequencing scRNA seq approach we demonstrate that larval RBs in zebrafish fall into three largely non overlapping classes of neurons. We also show that RBs are molecularly distinct from trigeminal neurons in zebrafish. Cross species transcriptional analysis indicates that one RB subclass is similar to a mammalian group of A fiber sensory neurons. Another RB subclass is predicted to sense multiple modalities including mechanical stimulation and chemical irritants. We leveraged our scRNA seq data to determine that the fibroblast growth factor Fgf pathway is active in RBs. Pharmacological and genetic inhibition of this pathway led to defects in axon maintenance and RB cell death. Moreover this phenotype can be phenocopied by treatment with an FDA approved Fgf inhibitor dovitinib which is used in clinic and causes peripheral neuropathy. Importantly dovitinib mediated axon loss can be suppressed by loss of Sarm1 a positive regulator of neuronal cell death and axonal injury. This offers a molecular target for future clinical intervention to fight neurotoxic effects of this drug. Overall design: Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq,GSM7708237,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:30 hpf loc name:missing|collection date:missing,30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:30 hpf,GSM7708237,GSM7708237: 30 hpf TgBACneurod1:EGFPnl1 zebrafish embryos scRNAseq; Danio rerio; RNA Seq,GSM7708237 r1,GSM7708237,1,Thirty hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP454714,,loader:fastq load.py,CEL201106AN_WT-2_S17_L004_I1_001.fastq.gz CEL201106AN_WT-2_S17_L004_R1_001.fastq.gz CEL201106AN_WT-2_S17_L004_R2_001.fastq.gz,fastq fastq fastq,14874414752.0,117121376.0,GSM7708237 r4,0:8 1:28 2:91,A:3301539475;C:2111151786;G:2317995421;T:2926865071;N:493463,8,28,91,,3301539475,2111151786,2317995421,2926865071,493463,SRX21346683,SRS18591743,SRA1691311,Oregon Health and Science Univ,Oregon Health and Science Univ,1,0.87465,,0.26977,,0.75211,,0.51651,,91,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2023-08-11,Pharyngula,Embryo,Embryo Imprecise,All anatomical structures 31872,SRR28764740,SRX24330059,SRS21091017,SRP502657,PRJNA1101966,Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling,GSE264323,Transcriptome Analysis,During nervous system development pioneer neurons are the first to extend their axons into target tissues creating a scaffold for follower neurons. Despite years of study whether pioneer neurons are a molecularly distinct population is unknown. Analysis of zebrafish posterior lateral line pLL sensory neurons during axon growth using single cell RNA sequencing scRNA seq revealed that pioneer and follower neurons are transcriptionally distinct. Expression profiling of differentiating pLL progenitors defined follower as the ground state whereas “pioneer” is a later developmental state. The scRNA seq data revealed active retinoic acid RA signaling in followers but not in pioneers. Modulation of RA signaling within single pLL neurons showed that its downregulation in pioneers is necessary for expression of neurotrophic factor receptor ret which is required for correct targeting of pioneer axons. Our study provided insights into the molecular landscape of pioneer neurons and revealed the regulatory role of RA signaling in their development. Overall design: Fourteen hpf eighteen hpf twenty two hpf forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,CEL210312AN WT 48h,GSM8222580,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:48 hpf loc name:missing|collection date:missing,CEL210312AN WT 48h,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:48 hpf,GSM8222580,GSM8222580: CEL210312AN WT 48h; Danio rerio; RNA Seq,GSM8222580 r1,GSM8222580,1,Forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP502657,,loader:fastq load.py,CEL210312AN_WT_48h_S100_L003_I1_001.fastq.gz CEL210312AN_WT_48h_S100_L003_R1_001.fastq.gz CEL210312AN_WT_48h_S100_L003_R2_001.fastq.gz,fastq fastq fastq,8597674702.0,67698226.0,GSM8222580 r1,0:8 1:28 2:91,A:1824246454;C:1278127991;G:1448333280;T:1609791598;N:39243,8,28,91,,1824246454,1278127991,1448333280,1609791598,39243,SRX24330059,SRS21091017,SRA1850361,Oregon Health and Science Univ,Oregon Health and Science Univ,,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2024-04-22,Hatching,Embryo,Embryo Imprecise,All anatomical structures 31873,SRR28764741,SRX24330059,SRS21091017,SRP502657,PRJNA1101966,Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling,GSE264323,Transcriptome Analysis,During nervous system development pioneer neurons are the first to extend their axons into target tissues creating a scaffold for follower neurons. Despite years of study whether pioneer neurons are a molecularly distinct population is unknown. Analysis of zebrafish posterior lateral line pLL sensory neurons during axon growth using single cell RNA sequencing scRNA seq revealed that pioneer and follower neurons are transcriptionally distinct. Expression profiling of differentiating pLL progenitors defined follower as the ground state whereas “pioneer” is a later developmental state. The scRNA seq data revealed active retinoic acid RA signaling in followers but not in pioneers. Modulation of RA signaling within single pLL neurons showed that its downregulation in pioneers is necessary for expression of neurotrophic factor receptor ret which is required for correct targeting of pioneer axons. Our study provided insights into the molecular landscape of pioneer neurons and revealed the regulatory role of RA signaling in their development. Overall design: Fourteen hpf eighteen hpf twenty two hpf forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,CEL210312AN WT 48h,GSM8222580,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:48 hpf loc name:missing|collection date:missing,CEL210312AN WT 48h,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:48 hpf,GSM8222580,GSM8222580: CEL210312AN WT 48h; Danio rerio; RNA Seq,GSM8222580 r1,GSM8222580,1,Forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP502657,,loader:fastq load.py,CEL210312AN_WT_48h_S101_L003_I1_001.fastq.gz CEL210312AN_WT_48h_S101_L003_R1_001.fastq.gz CEL210312AN_WT_48h_S101_L003_R2_001.fastq.gz,fastq fastq fastq,10521686856.0,82847928.0,GSM8222580 r2,0:8 1:28 2:91,A:2230570510;C:1564859730;G:1774018840;T:1969664072;N:48296,8,28,91,,2230570510,1564859730,1774018840,1969664072,48296,SRX24330059,SRS21091017,SRA1850361,Oregon Health and Science Univ,Oregon Health and Science Univ,,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2024-04-22,Hatching,Embryo,Embryo Imprecise,All anatomical structures 31874,SRR28764742,SRX24330059,SRS21091017,SRP502657,PRJNA1101966,Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling,GSE264323,Transcriptome Analysis,During nervous system development pioneer neurons are the first to extend their axons into target tissues creating a scaffold for follower neurons. Despite years of study whether pioneer neurons are a molecularly distinct population is unknown. Analysis of zebrafish posterior lateral line pLL sensory neurons during axon growth using single cell RNA sequencing scRNA seq revealed that pioneer and follower neurons are transcriptionally distinct. Expression profiling of differentiating pLL progenitors defined follower as the ground state whereas “pioneer” is a later developmental state. The scRNA seq data revealed active retinoic acid RA signaling in followers but not in pioneers. Modulation of RA signaling within single pLL neurons showed that its downregulation in pioneers is necessary for expression of neurotrophic factor receptor ret which is required for correct targeting of pioneer axons. Our study provided insights into the molecular landscape of pioneer neurons and revealed the regulatory role of RA signaling in their development. Overall design: Fourteen hpf eighteen hpf twenty two hpf forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,CEL210312AN WT 48h,GSM8222580,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:48 hpf loc name:missing|collection date:missing,CEL210312AN WT 48h,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:48 hpf,GSM8222580,GSM8222580: CEL210312AN WT 48h; Danio rerio; RNA Seq,GSM8222580 r1,GSM8222580,1,Forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP502657,,loader:fastq load.py,CEL210312AN_WT_48h_S102_L003_I1_001.fastq.gz CEL210312AN_WT_48h_S102_L003_R1_001.fastq.gz CEL210312AN_WT_48h_S102_L003_R2_001.fastq.gz,fastq fastq fastq,10393048429.0,81835027.0,GSM8222580 r3,0:8 1:28 2:91,A:2205422432;C:1544223539;G:1750760277;T:1946533138;N:48071,8,28,91,,2205422432,1544223539,1750760277,1946533138,48071,SRX24330059,SRS21091017,SRA1850361,Oregon Health and Science Univ,Oregon Health and Science Univ,,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2024-04-22,Hatching,Embryo,Embryo Imprecise,All anatomical structures 31875,SRR28764743,SRX24330059,SRS21091017,SRP502657,PRJNA1101966,Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling,GSE264323,Transcriptome Analysis,During nervous system development pioneer neurons are the first to extend their axons into target tissues creating a scaffold for follower neurons. Despite years of study whether pioneer neurons are a molecularly distinct population is unknown. Analysis of zebrafish posterior lateral line pLL sensory neurons during axon growth using single cell RNA sequencing scRNA seq revealed that pioneer and follower neurons are transcriptionally distinct. Expression profiling of differentiating pLL progenitors defined follower as the ground state whereas “pioneer” is a later developmental state. The scRNA seq data revealed active retinoic acid RA signaling in followers but not in pioneers. Modulation of RA signaling within single pLL neurons showed that its downregulation in pioneers is necessary for expression of neurotrophic factor receptor ret which is required for correct targeting of pioneer axons. Our study provided insights into the molecular landscape of pioneer neurons and revealed the regulatory role of RA signaling in their development. Overall design: Fourteen hpf eighteen hpf twenty two hpf forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,CEL210312AN WT 48h,GSM8222580,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:48 hpf loc name:missing|collection date:missing,CEL210312AN WT 48h,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:48 hpf,GSM8222580,GSM8222580: CEL210312AN WT 48h; Danio rerio; RNA Seq,GSM8222580 r1,GSM8222580,1,Forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP502657,,loader:fastq load.py,CEL210312AN_WT_48h_S103_L003_I1_001.fastq.gz CEL210312AN_WT_48h_S103_L003_R1_001.fastq.gz CEL210312AN_WT_48h_S103_L003_R2_001.fastq.gz,fastq fastq fastq,1539235301.0,12119963.0,GSM8222580 r4,0:8 1:28 2:91,A:326058980;C:228846142;G:262343444;T:285660694;N:7373,8,28,91,,326058980,228846142,262343444,285660694,7373,SRX24330059,SRS21091017,SRA1850361,Oregon Health and Science Univ,Oregon Health and Science Univ,,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2024-04-22,Hatching,Embryo,Embryo Imprecise,All anatomical structures 31876,SRR28764744,SRX24330058,SRS21091016,SRP502657,PRJNA1101966,Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling,GSE264323,Transcriptome Analysis,During nervous system development pioneer neurons are the first to extend their axons into target tissues creating a scaffold for follower neurons. Despite years of study whether pioneer neurons are a molecularly distinct population is unknown. Analysis of zebrafish posterior lateral line pLL sensory neurons during axon growth using single cell RNA sequencing scRNA seq revealed that pioneer and follower neurons are transcriptionally distinct. Expression profiling of differentiating pLL progenitors defined follower as the ground state whereas “pioneer” is a later developmental state. The scRNA seq data revealed active retinoic acid RA signaling in followers but not in pioneers. Modulation of RA signaling within single pLL neurons showed that its downregulation in pioneers is necessary for expression of neurotrophic factor receptor ret which is required for correct targeting of pioneer axons. Our study provided insights into the molecular landscape of pioneer neurons and revealed the regulatory role of RA signaling in their development. Overall design: Fourteen hpf eighteen hpf twenty two hpf forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,CEL210312AN WT 22h,GSM8222579,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:22 hpf loc name:missing|collection date:missing,CEL210312AN WT 22h,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Twenty two hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:22 hpf,GSM8222579,GSM8222579: CEL210312AN WT 22h; Danio rerio; RNA Seq,GSM8222579 r1,GSM8222579,1,Twenty two hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP502657,,loader:fastq load.py,CEL210312AN_WT_22h_S96_L003_I1_001.fastq.gz CEL210312AN_WT_22h_S96_L003_R1_001.fastq.gz CEL210312AN_WT_22h_S96_L003_R2_001.fastq.gz,fastq fastq fastq,9045377769.0,71223447.0,GSM8222579 r1,0:8 1:28 2:91,A:1910521348;C:1357874019;G:1521970464;T:1690926373;N:41473,8,28,91,,1910521348,1357874019,1521970464,1690926373,41473,SRX24330058,SRS21091016,SRA1850361,Oregon Health and Science Univ,Oregon Health and Science Univ,,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2024-04-22,Segmentation,Embryo,Embryo Imprecise,All anatomical structures 31877,SRR28764745,SRX24330058,SRS21091016,SRP502657,PRJNA1101966,Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling,GSE264323,Transcriptome Analysis,During nervous system development pioneer neurons are the first to extend their axons into target tissues creating a scaffold for follower neurons. Despite years of study whether pioneer neurons are a molecularly distinct population is unknown. Analysis of zebrafish posterior lateral line pLL sensory neurons during axon growth using single cell RNA sequencing scRNA seq revealed that pioneer and follower neurons are transcriptionally distinct. Expression profiling of differentiating pLL progenitors defined follower as the ground state whereas “pioneer” is a later developmental state. The scRNA seq data revealed active retinoic acid RA signaling in followers but not in pioneers. Modulation of RA signaling within single pLL neurons showed that its downregulation in pioneers is necessary for expression of neurotrophic factor receptor ret which is required for correct targeting of pioneer axons. Our study provided insights into the molecular landscape of pioneer neurons and revealed the regulatory role of RA signaling in their development. Overall design: Fourteen hpf eighteen hpf twenty two hpf forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.,,,,CEL210312AN WT 22h,GSM8222579,,source name:zebrafish embryo|cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:22 hpf loc name:missing|collection date:missing,CEL210312AN WT 22h,using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files,zebrafish embryo,,Twenty two hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.,,cell type:neuron|tissue:zebrafish embryo|strain:mixed|age:22 hpf,GSM8222579,GSM8222579: CEL210312AN WT 22h; Danio rerio; RNA Seq,GSM8222579 r1,GSM8222579,1,Twenty two hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP502657,,loader:fastq load.py,CEL210312AN_WT_22h_S97_L003_I1_001.fastq.gz CEL210312AN_WT_22h_S97_L003_R1_001.fastq.gz CEL210312AN_WT_22h_S97_L003_R2_001.fastq.gz,fastq fastq fastq,9556753429.0,75250027.0,GSM8222579 r2,0:8 1:28 2:91,A:2016694527;C:1436202913;G:1608693558;T:1786117733;N:43726,8,28,91,,2016694527,1436202913,1608693558,1786117733,43726,SRX24330058,SRS21091016,SRA1850361,Oregon Health and Science Univ,Oregon Health and Science Univ,,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2024-04-22,Segmentation,Embryo,Embryo Imprecise,All anatomical structures