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Drosophila melanogaster

ABSTRACT: Transcriptomic analysis of Drosophila imaginal wing discs cultured in insulin or 20-hydroxyecdysone

PROVIDER: PRJNA359106 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR5132460.fastq.gz	Fastqsanger.gz
	SRR5132470.fastq.gz	Fastqsanger.gz
	SRR5132461.fastq.gz	Fastqsanger.gz
	SRR5132471.fastq.gz	Fastqsanger.gz
	SRR5132462.fastq.gz	Fastqsanger.gz

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Transcriptomic analysis of Drosophila imaginal wing discs cultured in insulin or 20-hydroxyecdysone

Project description:We identified a role for low concentrations of 20-hydroxyecdysone (20E) in promoting growth of the Drosophila larval wing imaginal disc using genetics and in vitro explant culture. We found that 20E alone could promote proliferation in the absence of added insulin, a well known regulator of growth. To investigate the mechanism by which these hormones promote growth, we sequenced the transcriptomes of mid-third instar wing discs cultured in no hormone, 20E alone or insulin alone at two timepoints (4hr and 9hr). We also sequenced the transcriptomes of freshly dissected wing discs (not cultured). We found that within 4hr of culture without hormone, the expression of 1604 genes goes down and 1409 genes goes up, relative to uncultured discs. Changes in the expression of 1911 genes could be prevented, at least transiently, by the addition of either 20E or insulin. The transcriptional response to insulin was remarkably transient, decreasing by rougly 50% from 4hr to 9hr of culture. The response to 20E was smaller than that induced by insulin, but longer lasting. Insulin-induced genes are most significantly enriched in GO-terms describing DNA replication, ribosome biogenesis, translation, purine biosynthesis, and mitochondrial biogenesis. Insulin-repressed genes are enriched in genes involved in autophagy and cell death. 20E-regulated genes were also enriched for genes involved in DNA replication. Unlike insulin, however, 20E was found to promote the expression of genes in GO categories describing a variety of developmental processes. These data represent the first description of the direct transcriptional response of the wing disc to either insulin or low doses of 20E.

2017-11-01 | GSE92933 | GEO

Expression profiles from Drosophila melanogaster scrib and lgl mutant wing imaginal disc and brain complexes at day 9 after egg deposition (AED) versus wild type at day 5 AED

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SmD3 protein interactome in Drosophila melanogaster wing imaginal discs

Project description:Screening for binding partners of the splicing factor SmD3 and changes in interaction upon depletion of the protein Ecdysoneless (Ecd) in the nubbin domain of third-instar larval wing imaginal discs.

2021-09-09 | PXD019761 | Pride

Indentification of Dis3L2 targets in Drosophila melanogaster wing imaginal discs

Project description:We investigated the effect on mRNA expression in Drosophila melanogaster wing imaginal discs following the knockdown of the 3'-5' exoribonuclease Dis3L2.

2016-11-16 | E-MTAB-4545 | biostudies-arrayexpress

Gene expression profile of Drosophila third instar larval wing imaginal discs overexpressing netrinA (netA) and frazzled (fra).

2013-05-21 | GSE47113 | GEO

Drosophila melanogaster

Project description:Identification of Cbt target genes in Drosophila wing imaginal discs

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Transcriptomic analysis of third instar larval wing imaginal discs of Drosophila melanogaster corto and uL11 mutants

Project description:We report here the transcriptomic analysis of Drosophila melanogaster wing imaginal discs from third instar female larvae mutant for corto (cortoL1/corto420) The reference line was the w1118 genetic background of the mutant lines.

2022-08-01 | GSE181926 | GEO

Gene expression profile of Drosophila third instar larval wing imaginal discs overexpressing netrinA (netA) and frazzled (fra).

Project description:In order to analyze the global changes in gene expression resulting from induction of NetA-Fra signaling, we carried out a microarray experiment comparing Drosophila third instar wing imaginal discs in which Net+Fra had been overexpressed to age matched wild type wing imaginal discs. RNA extracted from both +NetA-Fra overexpression and wildtype third instar imaginal discs were hybridized to the Affymetrix GeneChip Drosophila Genome 2.0 . Heat shock induced GFP-marked clones ectopically expressing NetA+Fra in larvae were generated. Controls for this study included age matched wildtype third instar wing imaginal discs bearing GFP clones which were prepared in the same manner. Total RNA was extracted from dissected +NetA-Fra vs. control third instar wing imaginal discs and hybridized to the Affymetrix GeneChip Drosophila Genome 2.0.

2013-05-21 | E-GEOD-47113 | biostudies-arrayexpress

Expression profiles from Drosophila melanogaster scrib and lgl mutant wing imaginal disc and brain complexes at day 9 after egg deposition (AED) versus wild type at day 5 AED

Project description:mRNA microarray of Drosophila wing imaginal discs or brain complexes from lgl27S3/lglE2S31 (lgl-null), scrib1/scrib2 or wild-type 3rd instar larvae RNA was isolated from 20 pairs of wing discs/brain complexes per sample (i.e 20 individuals). Samples were from 5 day AED wildtype and 9 day AED mutant tissue Samples were prepared in triplicate from lgl27S3/lglE2S31 (lgl-null) and scrib1/scrib2 samples and in duplicate from the wild-type 3rd instar larvae

2014-01-31 | E-GEOD-48852 | biostudies-arrayexpress

Drosophila melanogaster

Project description:Genome -wide profile of SMRTER binding in Drosophila wing imaginal discs

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