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Transcriptome profiling Zebrafish Sap130a gene mutations in embryogenesis

ABSTRACT: This study profiled the transcriptome of zebrafish embryos harboring mutation in the Sin3A associated Protein 130a (sap130a) gene at 36 hours post fertilization (hpf). The sap130a mutant was generated via Cas9 mediated gene editing. Zebrafish sap130a mutants are viable presumable due to the presence of maternal RNA. Generation of maternal zygotic (MZ) mutants resulted in an incomplete penetrance of heart ventricle defects that were visible as early as 36 hpf. In this experiment the MZsap130a mutant embryos were further sorted for embryos with smaller ventricle (SV) vs normal size ventricle (NV). To extend on this study and to specifically analyze the heart, sap130a mutant and WT hearts at 48 hpf were extracted for RNA-seq analysis.

ORGANISM(S): Danio rerio

PROVIDER: GSE228057 | GEO | 2023/05/31

REPOSITORIES: GEO

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Transcriptome profiling Zebrafish Sap130b gene mutations in embryogenesis

Project description:This study profiled the transcriptome of zebrafish embryos harboring mutation in the Sin3A associated Protein 130b (sap130b) gene at 36 hours post fertilization (hpf). The sap130b mutant was generated via Cas9 mediated gene editing. Zebrafish sap130b mutants are viable and survive as adults with no observable phenotype. Maternal Zygotic sap130b mutants were established and they were also normal and it was reasoned that sap130a was compensating for the loss of sap130b. A transcriptome analysis was performed at 36 hpf to compare with our analysis of sap130a at this stage.

2023-05-31 | GSE228450 | GEO

Gene expression analysis of maternal zygotic ezh2 mutant zebrafish embryos vs wildtype at 0 and 3.3 hpf

Project description:Goal of the experiment was to assess the differences in gene expression between maternal zygotic ezh2 mutant zebrafish embryos and wildtype embryos at 0 and 3.3 hpf.

2016-05-06 | GSE64618 | GEO

Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and smyd4 mutant zebrafish cardiac transcriptomes

Project description:Heart tissue mRNA profiles of 50 wild-type (WT) and 50 homozygous smyd4 mutant zebrafish embryos at 72-hpf created by CRISPR/Cas9 were generated by deep sequencing.

2018-01-25 | GSE109553 | GEO

Systematic identification of long noncoding RNAs during three key organogenesis stages in zebrafish

Project description:Thousands of lncRNAs have been found in zebrafish embryogenesis and adult tissues, but their identification and organogenesis-related function have not elucidated. In this study, high-throughput sequencing was performed at three different organogenesis stages of zebrafish embryos, which were important for zebrafish muscle development. The three stages were 10 hpf (hours post fertilization) (T1), 24 hpf (T2) and 36 hpf (T3).

2023-07-19 | GSE235668 | GEO

Mycn regulates intestinal development through ribosomal biogenesis in a zebrafish model of Feingold syndrome 1 [bulk RNA-seq]

Project description:Purpose: To identify differential expressed genes for loss of function of Mycn in zebrafish Methods: wild-type and mycn mutant zebrafish embryos were collected for RNA sequencing at 48 hpf (hours post fertilisation) and 72 hpf Results: We found 85 (overlapped) down-regulated genes in mycn mutant embryos at 48 hpf and 72 hpf (padj < 0.1, log2 fold change < 0) Conclusions: 85 down-regulated genes were identified

2021-12-17 | GSE191001 | GEO

Transcriptomic profile of zebrafish cardiomyocytes throughout heart development

Project description:By using transgenic zebrafish lines Tg(nxk2.5:GFP) (Witzel et al. 2012) and Tg(myl7:EGFP) (D'Amico et al. 2007), we have characterized transcriptomic profile of FACS-isolated CM (GFP+) from developing zebrafish heart at 24, 48 and 72 hpf, corresponding to heart tube formation, chamber formation and differentiation and heart maturation, respectively. GFP- cells were used as a control. We have identified cardiac regulatory networks playing a crucial role in heart morphogenesis. To validate their importance in heart development, we employed zebrafish mutants of cardiac transciption factors Gata5, Hand2 and Tbx5a, the disruption of which were previously linked to impaired migration of the cardiac primordia to the embryonic midline, reduced number of myocardial precursors and failure of heart looping, respectively (Reiter et al. 1999; Yelon et al. 2000; Garrity et al. 2002). RNA-seq was performed from homozygous gata5tm236a/tm236a, tbx5am21/ m21, hand2s6/s6 mutant 72 hpf embryos in Tg(myl7:EGFP) genetic background. Homozygous mutant embryos for analyses were selected on the basis of their phenotypes of cardia bifida (gata5tm236a/tm236a, hand2s6/s6) or heart-string (tbx5am21/ m21) .

2019-01-10 | GSE120236 | GEO

Genome-wide chromatin accessibility profile of zebrafish cardiomyocytes throughout heart development

Project description:By using transgenic zebrafish lines Tg(nxk2.5:GFP) (Witzel et al. 2012) and Tg(myl7:EGFP) (D'Amico et al. 2007), we have characterized chromatin accessibility of FACS-isolated CM (GFP+) from developing zebrafish heart at 24, 48 and 72 hpf, corresponding to heart tube formation, chamber formation and differentiation and heart maturation, respectively. GFP- cells were used as a control. We have identified cardiac regulatory networks playing a crucial role in heart morphogenesis. To validate their importance in heart development, we employed zebrafish mutants of cardiac transciption factors Gata5, Hand2 and Tbx5a, the disruption of which were previously linked to impaired migration of the cardiac primordia to the embryonic midline, reduced number of myocardial precursors and failure of heart looping, respectively (Reiter et al. 1999; Yelon et al. 2000; Garrity et al. 2002). ATAC-seq was performed from homozygous gata5tm236a/tm236a, tbx5am21/ m21, hand2s6/s6 mutant 72 hpf embryos in Tg(myl7:EGFP) genetic background. Homozygous mutant embryos for analyses were selected on the basis of their phenotypes of cardia bifida (gata5tm236a/tm236a, hand2s6/s6) or heart-string (tbx5am21/ m21) .

2019-01-10 | GSE120237 | GEO

Loss of maternal and zygotic ezh2 reveals the function of Polycomb repression in maintenance of gene expression domain after the body plan is established in zebrafish

Project description:The goal of the ChIP-sequencing experiments was to assess the differences in occupancy of a selection of chromatin marks and chromatin associated proteins in absence of both maternal and zygotic Ezh2 in zebrafish embryos at 24 hours post-fertilization (hpf). The goal of RNA-sequencing experiments was to ass the effect of the absence of both maternal and zygotic Ezh2 on gene expression in zebrafish embryos at 0, 3.3, and 24 hpf and link these differences with the changes in epigenetic mark occupancy.

2019-09-07 | GSE119070 | GEO

Zebrafish transcriptomics in 24 and 36 hpf embryos after knockdown of glucocorticoid receptor translation

Project description:To further characterize the roles of cortisol signaling via the glucocorticoid receptor (GR) in developing zebrafish, we have used morpholino oligonucleotides to knockdown GR protein translation and measured gene expression in RNA extracted from 24 and 36 hours post fertilization (hpf) embryos. The GR morpholino was characterized previously in Nesan et al., 2012, Endocrinology 181, 35-44) Single-cell zebrafish embryos were microinjected with either active morpholino or mispair control. Embryos were frozen at 24 and 36 hpf and total RNA extracted for microarray analysis. Three independent replicates (different breeding events on separate days) were performed for each treatment per timepoint.

2013-08-28 | E-GEOD-50376 | biostudies-arrayexpress

Zebrafish whole embryos at 36 hpf treated with DMSO or 5uM 11,12-EET

Project description:In our previous study, we found zebrafish embryos treated with 5uM 11,12-EET (epoxyeicosatrienoic acid) had increased stem cell marker, runx1, expression in the AGM. EET also induced ectopic runx1 expression in the tail. To systematically study how EET regulates gene expression, we performed microarray analysis on EET-treated embryos. Zebrafish whole embryos were synchronized at fertilization. Embryos were grown at 28 degree overnight. 25 embryos per group were treated with DMSO or 5uM 11,12-EET starting from 24 hpf (hour post fertilization) until 36 hpf at 28 degree. The triplicates were from three different clutches of embryos, and split into DMSO v.s. EET for each clutch.

2012-07-28 | GSE39707 | GEO

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