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The role of Dichaete in transcriptional regulation during Drosophila embryonic development

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Drosophila melanogaster

PROVIDER: GSE49095 | GEO | 2013/07/22

SECONDARY ACCESSION(S): PRJNA212989

REPOSITORIES: GEO

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The role of Dichaete in transcriptional regulation during Drosophila embryonic development.

Project description:BACKGROUND:Group B Sox domain transcription factors play conserved roles in the specification and development of the nervous system in higher metazoans. However, we know comparatively little about how these transcription factors regulate gene expression, and the analysis of Sox gene function in vertebrates is confounded by functional compensation between three closely related family members. In Drosophila, only two group B Sox genes, Dichaete and SoxN, have been shown to function during embryonic CNS development, providing a simpler system for understanding the functions of this important class of regulators. RESULTS:Using a combination of transcriptional profiling and genome-wide binding analysis we conservatively identify over 1000 high confidence direct Dichaete target genes in the Drosophila genome. We show that Dichaete plays key roles in CNS development, regulating aspects of the temporal transcription factor sequence that confer neuroblast identity. Dichaete also shows a complex interaction with Prospero in the pathway controlling the switch from stem cell self-renewal to neural differentiation. Dichaete potentially regulates many more genes in the Drosophila genome and was found to be associated with over 2000 mapped regulatory elements. CONCLUSIONS:Our analysis suggests that Dichaete acts as a transcriptional hub, controlling multiple regulatory pathways during CNS development. These include a set of core CNS expressed genes that are also bound by the related Sox2 gene during mammalian CNS development. Furthermore, we identify Dichaete as one of the transcription factors involved in the neural stem cell transcriptional network, with evidence supporting the view that Dichaete is involved in controlling the temporal series of divisions regulating neuroblast identity.

| S-EPMC3866562 | biostudies-literature

The role of Dichaete in transcriptional regulation during Drosophila embryonic development

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2013-07-22 | E-GEOD-49095 | biostudies-arrayexpress

The role of Dichaete in transcriptional regulation during Drosophila embryonic development

Project description:The role of Dichaete in transcriptional regulation during Drosophila embryonic development

| PRJNA212989 | ENA

Role of PARP-1 in transcriptional regulation during development

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-05-25 | GSE217730 | GEO

The role of Dichaete in transcriptional regulation of Drosophila embryogenesis

2013-07-22 | GSE49069 | GEO

The role of Dichaete in transcriptional regulation of Drosophila embryogenesis

Project description:Dichaete is a developmentally important transcription factor, known to be involved in basic biological processes including segmentation and nervous system development among others. The aim of this experiment was to gain further insight into the role of Dichaete during early embryogenesis, by looking at the disruption of gene expression in Dichaete mutants. Stage 10-11 embryos (5 and 7.5 hours after egg laying) from a cross between Dr72/TM3, twi-GAL4 UAS-Gfp Dr513/TM3, twi-GAL4 UAS-Gfp, were hand picked under a fluorescence dissecting microscope. GFP negative homozygous Dichaete mutant embryos and their heterozygous single GFP positive siblings were collected and approximately 150 embryos per sample were stored frozen in Trizol

2013-07-22 | E-GEOD-49069 | biostudies-arrayexpress

The role of Dichaete in transcriptional regulation the of Drosophila midline [simgal4]

2013-07-22 | GSE49094 | GEO

The role of Dichaete in transcriptional regulation the of Drosophila midline [prosGal4]

2013-07-22 | GSE49071 | GEO

Functional role of miRNAs in the renal stroma during embryonic kidney development

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2015-11-04 | E-GEOD-64442 | biostudies-arrayexpress

The role of Dichaete in transcriptional regulation the of Drosophila midline [simgal4]

Project description:Dichaete is a developmentally important transcription factor, known to be involved in basic biological processes including segmentation and nervous system development among others. The aim of this experiment was to gain further insight into the role of Dichaete during early embryogenesis, specifically looking at targets in the midline using dominant negative constructs expressed via the UAS/Gal4 system, using simGal4 to drive expression in the midline. 4 independent biological replicates. 3.5-4.5h old embryos were collected, and the RNA was extracted using Trizol. The UAS-dominant negative construct expressing embryos were compared to UAS-GFP expressing controls. Construct expression was driven using simgal4.

2013-07-22 | E-GEOD-49094 | biostudies-arrayexpress

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