RNA-seq of zebrafish sa12692 mutants against WT controls
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ABSTRACT:
PROVIDER: PRJEB32363 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:RNA-Seq analysis of hearts in foxc1anju18 mutants and WT zebrafish embryos
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Project description:Transcriptional profiling of 2.25 dpf (days post fertilzation) zebrafish embryos comparing wildtype (control) to med14 (mediator complex subunit 14) mutants. Goal was to determine the extent to which transcription was affected in med14 mutants by analyzing global gene expression. Background: Mediator is an evolutionarily conserved multi-subunit complex that physically links the RNA polymerase II transcriptional machinery to enhancer bound regulatory factors. While classically described as a core component of the transcriptional machinery, recent evidence suggests that Mediator may have context-dependent roles. In particular, a requirement for Mediator in the maintenance of embryonic and induced pluripotent stem cells has been noted. However, the in vivo consequences of loss of function of many Mediator subunits are unknown. Results: We identified med14, which encodes a Mediator subunit, as the gene affected in the zebrafish logelei (log) mutant. log mutants displayed a morphological arrest by 2 days of embryonic development. Surprisingly, microarray analysis showed that transcription was not broadly affected in log mutants. Transplanted log cells placed into a wild-type environment were able to survive into adulthood, suggesting a lack of global transcriptional defects in Med14-deficient cells. RNAi knockdown of the single med14 ortholog in planarians demonstrated that med14 was required for adult stem cell maintenance and regeneration. A broader assay of Mediator subunits revealed that many were required for stem cell maintenance in planarians. Multiple stem/progenitor cell populations were observed to be reduced or absent in zebrafish med14 mutant embryos, with embryonic fin regeneration defects also evident. Conclusions: Taken together, our results show a critical, evolutionarily conserved, function for Med14 (and perhaps Mediator in general) in evolutionarily conserved in vivo stem cell maintenance and regeneration, distinct from a ubiquitous role in transcription.
2017-02-09 | GSE58042 | GEO
Project description:Immune responses in higher vertebrates are classically separated into innate and adaptive (or specific) immunity. However, important gaps of knowledge about how adaptive responses are generated in lower vertebrates still remain unsolved. In order to explore the relative importance of adaptive and innate immune responses, we have studied zebrafish transcriptional responses to an infection with the Spring Viraemia of Carp virus (SVCV) in rag1-/- zebrafish mutants compared to wild type zebrafish by using both genome wide and immunological-targeted gene expression microarrays. Both wild type (wt) and mutant (rag1) zebrafish were divided in two groups with 3 individuals per group. First group was infected with 10^5 pfu per ml of SVCV, second group was mock-infected. Two days after challenge zebrafish were sampled, head kidney and spleen of each fish were extracted and pooled between each group. The experiment was repeated once to obtain two biological replicates.
2015-05-10 | E-GEOD-54096 | biostudies-arrayexpress
Project description:RNA-seq of mondoa zebrafish mutants
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Project description:The study compares gene expression profile at several stages post amputation of the adult zebrafish ventricular heart between zebrafish mutants and WT siblings. The first experiment was to identify genes that are activated in response to cardiac injury at 3 and 7 days post amputation (dpa). Dusp6 mutant hearts were reported to show an enhanced regenerative response. For this experiment, bulk RNA seq was obtained from WT and Dusp6 mutant hearts and genes increased at 3 and 7 dpa were identified. The forkhead transcription factor, foxm1, showed increased expression in cardiomyocytes and follow up studies show that it is required to regulate cardiomyocyte proliferation. This was further explored with RNA-seq experiments comparing WT and foxm1 mutant hearts at 3dpa. We identified genes normally expressed in proliferating cells to be decreased in the foxm1 mutants.
2022-06-22 | GSE201139 | GEO
Project description:Bulk tissue RNA-sequencing of individual 24hpf zebrafish larvae to compare the gene expression values between wild type and foxg1a nonsense mutants (heterozygous and homozygous mutants). The mutation is a 5bp deletion (32bp from canonical start codon; AAATG deleted).
2024-03-29 | E-MTAB-13886 | biostudies-arrayexpress
Project description:Arrhythmogenic Right Ventricular Cardiomyopathy is a congenital heart disorder characterized by fibrofatty replacement of the myocardium. The exact molecular mechanisms underlying the disease remain to be elucidated and treatment options are limited. The sa12692 mutant line contains a splice site mutation in the plakoglobin gene, resulting in the expression of a truncated protein. This protein is highly similar to the protein expressed in Naxos disease, a recessive form of ARVC. RNA-seq was used to investigate the effect of the sa12692 mutation on gene expression in order to uncover signalling pathways involved in the pathogenesis of ARVC. Gene expression was examined in whole larvae at 5 dpf and in hearts of 1 year old adult fish. Larvae at 5 dpf were selected as this timepoint is equivalent to birth in humans. Adult hearts were selected as ARVC is a disorder of the heart and cardiac symptoms generally manifest in adulthood. Hence, the molecular effect of the mutation could be profiled at two life stages.
2021-04-30 | E-MTAB-7920 | biostudies-arrayexpress
Project description:This dataset comprises RNA-Seq data from two zebrafish mutants and their respective sibling controls. These mutants show trafficking defects leading to accumuation of early and late endocytic vesicles and rounding up in the periderm. The goosepimples mutation has been identified as a null form of MyoVb, an actin based motor. Differential expression analysis suggests upregulation of grainyhead familiy transcription factors Grhl1 and Grhl3 along with various adhesion associated genes.
2021-05-01 | GSE173649 | GEO
Project description:To discover insulin-independent pathways controlling glucose homeostasis, we generated zebrafish insulin mutants. Aiming to characterize the transcriptional changes induced by deletion of insulin, we performed a microarray analysis comparing insulin mutant animals with their non-mutant siblings at 108 hours post fertilization. Embryos were grown at 28 degrees C until 108 hpf, and were separately collected as mutants or non-mutants to form pools of 10 animals per sample. Total RNA was isolated, sample quality was tested using a Bioanalyzer and microarray analysis was performed by Oak Labs (Germany)
2018-10-20 | E-MTAB-7282 | biostudies-arrayexpress
Project description:The goal of this study is to compare the relative expression genes in hearts of foxc1a-null mutants and WT siblings. 96hpf hearts of foxc1anju18 and WT siblings were dissected for total RNA extraction. RNA profiles were generated using Illumina deep sequencing. Our study represents the reduced expression of several trabeculation related signaling pathways and cell processes.
2021-12-05 | GSE174156 | GEO