metadata: run_metadata: 161 rows where experiment.library_source = "TRANSCRIPTOMIC SINGLE CELL", technology = "10x" and tissue

161 rows where experiment.library_source = "TRANSCRIPTOMIC SINGLE CELL", technology = "10x" and tissue_curation = "Embryo Imprecise"

descending

Link	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.extractprotocol	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.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.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	submission.bioprojectsource.country	earliest_date	devstage_curation	devstage_curation_coarse	tissue_curation	tissue_curation_coarse
9898	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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
11753	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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	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 solu…				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	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 solu…				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	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 solu…				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	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 solu…				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	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. 7…				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	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. 7…				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	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. 7…				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	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. 7…				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	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. 7…				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	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. 7…				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
31878	31878	SRR28764746	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. 7…				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_S98_L003_I1_001.fastq.gz CEL210312AN_WT_22h_S98_L003_R1_001.fastq.gz CEL210312AN_WT_22h_S98_L003_R2_001.fastq.gz	fastq fastq fastq	6838295188.0	53844844.0	GSM8222579 r3	0:8 1:28 2:91	A:1443225941;C:1028068269;G:1151922277;T:1276632644;N:31673	8	28	91	1443225941	1028068269	1151922277	1276632644	31673	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
31879	31879	SRR28764747	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. 7…				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_S99_L003_I1_001.fastq.gz CEL210312AN_WT_22h_S99_L003_R1_001.fastq.gz CEL210312AN_WT_22h_S99_L003_R2_001.fastq.gz	fastq fastq fastq	8872634401.0	69863263.0	GSM8222579 r4	0:8 1:28 2:91	A:1873119195;C:1332238982;G:1493221194;T:1658936897;N:40665	8	28	91	1873119195	1332238982	1493221194	1658936897	40665	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
31880	31880	SRR28738013	SRX24303940	SRS21066774	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. 7…				CEL210312AN WT 14h	GSM8216056		source name:zebrafish embryo\|cell type:neuron\|tissue:zebrafish embryo\|strain:mixed\|age:14 hpf loc name:missing\|collection date:missing	CEL210312AN WT 14h	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	Fourteen 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:14 hpf	GSM8216056	GSM8216056: CEL210312AN WT 14h; Danio rerio; RNA Seq	GSM8216056 r1	GSM8216056	1	Fourteen 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_14h_S92_L003_I1_001.fastq.gz CEL210312AN_WT_14h_S92_L003_R1_001.fastq.gz CEL210312AN_WT_14h_S92_L003_R2_001.fastq.gz	fastq fastq fastq	5909782440.0	46533720.0	GSM8216056 r1	0:8 1:28 2:91	A:1195361841;C:933687818;G:1057254177;T:1048237872;N:26812	8	28	91	1195361841	933687818	1057254177	1048237872	26812	SRX24303940	SRS21066774	SRA1848682	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	2024-04-18	Segmentation	Embryo	Embryo Imprecise	All anatomical structures
31881	31881	SRR28738014	SRX24303940	SRS21066774	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. 7…				CEL210312AN WT 14h	GSM8216056		source name:zebrafish embryo\|cell type:neuron\|tissue:zebrafish embryo\|strain:mixed\|age:14 hpf loc name:missing\|collection date:missing	CEL210312AN WT 14h	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	Fourteen 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:14 hpf	GSM8216056	GSM8216056: CEL210312AN WT 14h; Danio rerio; RNA Seq	GSM8216056 r1	GSM8216056	1	Fourteen 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_14h_S93_L003_I1_001.fastq.gz CEL210312AN_WT_14h_S93_L003_R1_001.fastq.gz CEL210312AN_WT_14h_S93_L003_R2_001.fastq.gz	fastq fastq fastq	6519796333.0	51336979.0	GSM8216056 r2	0:8 1:28 2:91	A:1320007258;C:1029906863;G:1166350676;T:1155370144;N:30148	8	28	91	1320007258	1029906863	1166350676	1155370144	30148	SRX24303940	SRS21066774	SRA1848682	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	2024-04-18	Segmentation	Embryo	Embryo Imprecise	All anatomical structures
31882	31882	SRR28738015	SRX24303940	SRS21066774	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. 7…				CEL210312AN WT 14h	GSM8216056		source name:zebrafish embryo\|cell type:neuron\|tissue:zebrafish embryo\|strain:mixed\|age:14 hpf loc name:missing\|collection date:missing	CEL210312AN WT 14h	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	Fourteen 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:14 hpf	GSM8216056	GSM8216056: CEL210312AN WT 14h; Danio rerio; RNA Seq	GSM8216056 r1	GSM8216056	1	Fourteen 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_14h_S94_L003_I1_001.fastq.gz CEL210312AN_WT_14h_S94_L003_R1_001.fastq.gz CEL210312AN_WT_14h_S94_L003_R2_001.fastq.gz	fastq fastq fastq	6288014983.0	49511929.0	GSM8216056 r3	0:8 1:28 2:91	A:1273032152;C:992961980;G:1124384567;T:1115177910;N:28930	8	28	91	1273032152	992961980	1124384567	1115177910	28930	SRX24303940	SRS21066774	SRA1848682	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	2024-04-18	Segmentation	Embryo	Embryo Imprecise	All anatomical structures
31883	31883	SRR28738016	SRX24303940	SRS21066774	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. 7…				CEL210312AN WT 14h	GSM8216056		source name:zebrafish embryo\|cell type:neuron\|tissue:zebrafish embryo\|strain:mixed\|age:14 hpf loc name:missing\|collection date:missing	CEL210312AN WT 14h	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	Fourteen 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:14 hpf	GSM8216056	GSM8216056: CEL210312AN WT 14h; Danio rerio; RNA Seq	GSM8216056 r1	GSM8216056	1	Fourteen 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_14h_S95_L003_I1_001.fastq.gz CEL210312AN_WT_14h_S95_L003_R1_001.fastq.gz CEL210312AN_WT_14h_S95_L003_R2_001.fastq.gz	fastq fastq fastq	6986621409.0	55012767.0	GSM8216056 r4	0:8 1:28 2:91	A:1412426673;C:1104618149;G:1250890162;T:1238194657;N:32156	8	28	91	1412426673	1104618149	1250890162	1238194657	32156	SRX24303940	SRS21066774	SRA1848682	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	2024-04-18	Segmentation	Embryo	Embryo Imprecise	All anatomical structures
31972	31972	SRR28854385	SRX24414680	SRS21169984	SRP505049	PRJNA1106549	Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling WT 30 h	GSE266312	Other	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: 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 an…				scRNAseq	GSM8244692		source name:zebrafish embryo\|cell type:neuron\|tissue:zebrafish embryo\|strain:mixed\|age:30 hpf loc name:missing\|collection date:missing	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	GSM8244692	GSM8244692: scRNAseq; Danio rerio; RNA Seq	GSM8244692 r1	GSM8244692	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	SRP505049		loader:fastq load.py	CEL200616AN_WT_30h_S4_L001_I1_001.fastq.gz CEL200616AN_WT_30h_S4_L001_R1_001.fastq.gz CEL200616AN_WT_30h_S4_L001_R2_001.fastq.gz	fastq fastq fastq	5724917176.0	45078088.0	GSM8244692 r1	0:8 1:28 2:91	A:1233470398;C:840754101;G:925102747;T:1102656199;N:122563	8	28	91	1233470398	840754101	925102747	1102656199	122563	SRX24414680	SRS21169984	SRA1856329	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	2024-04-30	Pharyngula	Embryo	Embryo Imprecise	All anatomical structures
31973	31973	SRR28854386	SRX24414680	SRS21169984	SRP505049	PRJNA1106549	Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling WT 30 h	GSE266312	Other	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: 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 an…				scRNAseq	GSM8244692		source name:zebrafish embryo\|cell type:neuron\|tissue:zebrafish embryo\|strain:mixed\|age:30 hpf loc name:missing\|collection date:missing	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	GSM8244692	GSM8244692: scRNAseq; Danio rerio; RNA Seq	GSM8244692 r1	GSM8244692	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	SRP505049		loader:fastq load.py	CEL200616AN_WT_30h_S4_L002_I1_001.fastq.gz CEL200616AN_WT_30h_S4_L002_R1_001.fastq.gz CEL200616AN_WT_30h_S4_L002_R2_001.fastq.gz	fastq fastq fastq	5783895468.0	45542484.0	GSM8244692 r2	0:8 1:28 2:91	A:1245735118;C:849017838;G:935656364;T:1113856043;N:100681	8	28	91	1245735118	849017838	935656364	1113856043	100681	SRX24414680	SRS21169984	SRA1856329	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	2024-04-30	Pharyngula	Embryo	Embryo Imprecise	All anatomical structures

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CREATE TABLE run_metadata("run.accession" VARCHAR, "experiment.accession" VARCHAR, "sample.accession" VARCHAR, "study.accession" VARCHAR, bioproject VARCHAR, "study.title" VARCHAR, "study.alias" VARCHAR, "study.type" VARCHAR, "study.abstract" VARCHAR, "study.attributes" VARCHAR, "study.PMIDs" VARCHAR, "sample.description" VARCHAR, "sample.title" VARCHAR, "sample.alias" VARCHAR, "sample.centername" VARCHAR, "sample.attributes" VARCHAR, "GEOsample.title" VARCHAR, "GEOsample.dataprocessing" VARCHAR, "GEOsample.source" VARCHAR, "GEOsample.treatmentprotocol" VARCHAR, "GEOsample.extractprotocol" VARCHAR, "GEOsample.growthprotocol" VARCHAR, "GEOsample.characteristics" VARCHAR, "GEOsample.accession" VARCHAR, "experiment.title" VARCHAR, "experiment.alias" VARCHAR, "experiment.library_name" VARCHAR, "experiment.design_description" VARCHAR, "experiment.library_construction_protocol" VARCHAR, "experiment.attributes" VARCHAR, "experiment.library_strategy" VARCHAR, "experiment.library_source" VARCHAR, "experiment.library_selection" VARCHAR, "experiment.library_layout" VARCHAR, "experiment.platform" VARCHAR, "experiment.instrument_model" VARCHAR, "experiment.spot_descriptor" VARCHAR, "experiment.study_ref" VARCHAR, "run.title" VARCHAR, "run.attributes" VARCHAR, "run.filename" VARCHAR, "run.semantic_name" VARCHAR, "run.total_bases" DOUBLE, "run.total_spots" DOUBLE, "run.alias" VARCHAR, "run.read_lengths" VARCHAR, "run.base_counts" VARCHAR, "run.r1_length" BIGINT, "run.r2_length" BIGINT, "run.r3_length" BIGINT, "run.r4_length" BIGINT, "run.Acount" BIGINT, "run.Ccount" BIGINT, "run.Gcount" BIGINT, "run.Tcount" BIGINT, "run.Ncount" BIGINT, "run.experiment" VARCHAR, "run.pool_member" VARCHAR, "submission.accession" VARCHAR, "submission.srasource" VARCHAR, "submission.bioprojectsource" VARCHAR, "seqdetective.n_mates" BIGINT, "seqdetective.mapping_rate.mate1" DOUBLE, "seqdetective.mapping_rate.mate2" DOUBLE, "seqdetective.nofeature_rate.mate1" DOUBLE, "seqdetective.nofeature_rate.mate2" DOUBLE, "seqdetective.sparsity.mate1" DOUBLE, "seqdetective.sparsity.mate2" DOUBLE, "seqdetective.pos_strand_rate.mate1" DOUBLE, "seqdetective.pos_strand_rate.mate2" DOUBLE, "seqdetective.readlen.mate1" BIGINT, "seqdetective.readlen.mate2" BIGINT, "seqdetective.judgement.mate1" VARCHAR, "seqdetective.judgement.mate2" VARCHAR, "seqdetective.judgement.reason" VARCHAR, platform_family VARCHAR, instrument_generation VARCHAR, read_bias VARCHAR, selection_class VARCHAR, prep_kit VARCHAR, sc_or_bulk VARCHAR, tech_class VARCHAR, technology VARCHAR, tech_variant VARCHAR, "submission.bioprojectsource.country" VARCHAR, earliest_date DATE, devstage_curation VARCHAR, devstage_curation_coarse VARCHAR, tissue_curation VARCHAR, tissue_curation_coarse VARCHAR);;
CREATE INDEX idx_run_bioproject ON run_metadata(bioproject);;
CREATE INDEX idx_run_run_accession ON run_metadata("run.accession");;