run_metadata: 31877

This data as json

rowid	run.accession	experiment.accession	sample.accession	study.accession	bioproject	study.title	study.alias	study.type	study.abstract	study.attributes	study.PMIDs	sample.description	sample.title	sample.alias	sample.centername	sample.attributes	GEOsample.title	GEOsample.dataprocessing	GEOsample.source	GEOsample.treatmentprotocol	GEOsample.extractprotocol	GEOsample.growthprotocol	GEOsample.characteristics	GEOsample.accession	experiment.title	experiment.alias	experiment.library_name	experiment.design_description	experiment.library_construction_protocol	experiment.attributes	experiment.library_strategy	experiment.library_source	experiment.library_selection	experiment.library_layout	experiment.platform	experiment.instrument_model	experiment.spot_descriptor	experiment.study_ref	run.title	run.attributes	run.filename	run.semantic_name	run.total_bases	run.total_spots	run.alias	run.read_lengths	run.base_counts	run.r1_length	run.r2_length	run.r3_length	run.r4_length	run.Acount	run.Ccount	run.Gcount	run.Tcount	run.Ncount	run.experiment	run.pool_member	submission.accession	submission.srasource	submission.bioprojectsource	seqdetective.n_mates	seqdetective.mapping_rate.mate1	seqdetective.mapping_rate.mate2	seqdetective.nofeature_rate.mate1	seqdetective.nofeature_rate.mate2	seqdetective.sparsity.mate1	seqdetective.sparsity.mate2	seqdetective.pos_strand_rate.mate1	seqdetective.pos_strand_rate.mate2	seqdetective.readlen.mate1	seqdetective.readlen.mate2	seqdetective.judgement.mate1	seqdetective.judgement.mate2	seqdetective.judgement.reason	platform_family	instrument_generation	read_bias	selection_class	prep_kit	sc_or_bulk	tech_class	technology	tech_variant	submission.bioprojectsource.country	earliest_date	devstage_curation	devstage_curation_coarse	tissue_curation	tissue_curation_coarse
31877	SRR28764745	SRX24330058	SRS21091016	SRP502657	PRJNA1101966	Pioneer neurons are molecularly distinct and their axon targeting is regulated by retinoic acid signaling	GSE264323	Transcriptome Analysis	During nervous system development pioneer neurons are the first to extend their axons into target tissues creating a scaffold for follower neurons. Despite years of study whether pioneer neurons are a molecularly distinct population is unknown. Analysis of zebrafish posterior lateral line pLL sensory neurons during axon growth using single cell RNA sequencing scRNA seq revealed that pioneer and follower neurons are transcriptionally distinct. Expression profiling of differentiating pLL progenitors defined follower as the ground state whereas “pioneer” is a later developmental state. The scRNA seq data revealed active retinoic acid RA signaling in followers but not in pioneers. Modulation of RA signaling within single pLL neurons showed that its downregulation in pioneers is necessary for expression of neurotrophic factor receptor ret which is required for correct targeting of pioneer axons. Our study provided insights into the molecular landscape of pioneer neurons and revealed the regulatory role of RA signaling in their development. Overall design: Fourteen hpf eighteen hpf twenty two hpf forty eight hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 µl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 µm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 µl PBS/ 2% BSA in a siliconized 1.5mL tube.				CEL210312AN WT 22h	GSM8222579		source name:zebrafish embryo\|cell type:neuron\|tissue:zebrafish embryo\|strain:mixed\|age:22 hpf loc name:missing\|collection date:missing	CEL210312AN WT 22h	using Cell Ranger version 3.1.0; 10X Genomics Pleasanton CA. USA Assembly: ZebraFishGRCz11 Supplementary files format and content: Tab separated values files and matrix files	zebrafish embryo		Twenty two hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer’s solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer’s solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter’s instructions single cell 3’ v3 protocol 10x Genomics.		cell type:neuron\|tissue:zebrafish embryo\|strain:mixed\|age:22 hpf	GSM8222579	GSM8222579: CEL210312AN WT 22h; Danio rerio; RNA Seq	GSM8222579 r1	GSM8222579	1	Twenty two hpf TgBACneurod1:EGFPnl1 zebrafish embryos were collected and euthanized in 1.7 ml microcentrifuge tubes. Embryos were deyolked using a calcium free Ringer's solution 116 mM NaCl 2.6 mM KCl 5 mM HEPES pH 7.0 by gently pipetting up and down with a P200 pipet. Embryos were incubated for 5 minutes in Ringer's solution. Embryos were transferred to pre warmed protease solutions 0.25% trypsin 1 mM EDTA pH 8.0 PBS and collagenase P/HBSS 100 mg/mL was added. Embryos were incubated at 28° C for 15 minutes and were homogenized every 5 minutes using a P1000 pipet. The Stop solution 6X 30% calf serum 6 mM CaCl2 PBS was added and samples were centrifuged 350xg 4° C for 5 minutes. Supernatant was removed and 1 mL of chilled suspension solution was added 1% FBS 0.8 mM CaCl2 50 U/mL penicillin 0.05 mg/mL streptomycin DMEM. Samples were centrifuged again 350g 4° C for 5 minutes and supernatant was removed. 700 μl of chilled suspension solution was added and cells were resuspended by pipetting. Cells were passed through a 40 μm cell strainer into a FACs tube and kept on ice. GFP and RFP+ cells were FAC sorted on a BD Symphony cell sorter into sorting buffer 50 μl PBS/ 2% BSA in a siliconized 1.5mL tube. Library was performed according to the manufacter's instructions single cell three prime v3 protocol 10x Genomics.		RNA-Seq	TRANSCRIPTOMIC SINGLE CELL	cDNA	PAIRED	ILLUMINA	Illumina NovaSeq 6000		SRP502657		loader:fastq load.py	CEL210312AN_WT_22h_S97_L003_I1_001.fastq.gz CEL210312AN_WT_22h_S97_L003_R1_001.fastq.gz CEL210312AN_WT_22h_S97_L003_R2_001.fastq.gz	fastq fastq fastq	9556753429.0	75250027.0	GSM8222579 r2	0:8 1:28 2:91	A:2016694527;C:1436202913;G:1608693558;T:1786117733;N:43726	8	28	91		2016694527	1436202913	1608693558	1786117733	43726	SRX24330058	SRS21091016	SRA1850361	Oregon Health and Science Univ	Oregon Health and Science Univ												B		usable mapping rate	illumina	novaseq_era	unknown	cdna_unspecified	unknown	sc	single_cell_droplet	10x		United States	2024-04-22	Segmentation	Embryo	Embryo Imprecise	All anatomical structures