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Transcriptomic analysis of Drosophila leg disc associated myoblasts

ABSTRACT: Adult leg muscle precursors are associated to leg imaginal disc, here we provide bulk RNA sequecing of FACS sorted myoblasts from dissected imaginal leg discs at beginning of pupation.

ORGANISM(S): Drosophila melanogaster

PROVIDER: GSE245192 | GEO | 2024/06/28

REPOSITORIES: GEO

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Genome-wide differences in RNA expression in Drosophila melanogaster leg imaginal discs based on time and presence/absence of broad-based gene regulation

Project description:We report on changes in gene expression resulting from the ecdysone-directed broad-based transcriptional regulatory hierarchy in Drosophila melanogaster leg imaginal discs by comparing expression in white1118 third-instar larvae (-18 hrs relative to pupariation) and white prepupae (0 hrs) to examine the transcriptional effects of the late larval ecdysone pulse, as well comparing expression in white1118 and broad5 white prepupal leg imaginal discs to examine the transcriptional effects of the early ecdysone responder, broad. Using this approach, we were able to identify critical leg disc elongation genes that are differentially regulated in broad mutants

2019-11-13 | GSE140248 | GEO

CTCF binding profiles in Drosophila melanogaster 3rd instar larva T1 and T3 leg discs

Project description:Although the majority of genomic binding sites for the insulator protein CTCF are constitutively occupied, a subset show variable occupancy. Such variable sites provide an opportunity to assess context-specific CTCF functions in gene regulation. Here we have identified a variably occupied CTCF site in the Ultrabithorax (Ubx) gene in Drosophila. This site is occupied in tissues where Ubx is active (third thoracic imaginal leg disc) but is not bound in tissues where the Ubx gene is repressed (first thoracic imaginal leg disc). Comparison of CTCF binding in T1 leg disc vs T3 leg disc in from 3rd instar larva

2014-10-11 | E-GEOD-62234 | biostudies-arrayexpress

CTCF binding profiles in Drosophila melanogaster 3rd instar larva T1 and T3 leg discs

2014-10-11 | GSE62234 | GEO

JAK/STAT coordinates cell proliferation during disc regeneration with Dilp8-mediated developmental delay in Drosophila melanogaster

Project description:Regeneration of fragmented Drosophila imaginal discs occurs in an epimorphic manner, involving local cell proliferation at the wound site. Following disc fragmentation, cells at the wound site activate a restoration program through wound healing, regenerative cell proliferation and repatterning of the tissue. However, the interplay of signaling cascades, driving these early reprogramming steps, is not well understood. Here we profiled the transcriptome of regenerating cells in the early phase within twenty-four hours after wounding. We found that JAK/STAT signaling becomes activated at the wound site and promotes regenerative cell proliferation in cooperation with Wingless (Wg) signaling. In addition, we demonstrated that the expression of Drosophila insulin-like peptide 8 (dilp8), which encodes a paracrine peptide to delay the onset of pupariation, is controlled by JAK/STAT signaling in early regenerating discs. Our findings suggest that JAK/STAT signaling plays a pivotal role in coordinating regenerative disc growth with organismal developmental timing. In order to analyze transcriptome change in early regenerating imaginal disc, Drosophila prothorasic leg discs were fragmented (to anterior one-quarter or posterior three-quarters) and cultured ex vivo in adult fly abdomen. Regenerating cells in early regeneration phase (at 12 or 24 hours after wounding) were subjected to transcriptome profiling with Affymetrix microarrays. For control samples, the corresponding regions of uncut-cultured discs and uncut-uncultured discs were used.

2015-04-10 | E-GEOD-54868 | biostudies-arrayexpress

Wing imaginal disc spatial expression

Project description:Wing imaginal discs were dissected to generate body wall and wing/hinge fragments. Targets from three biological replicates of each were generated and the expression profiles were determined using Affymetrix Drosophila Genechip 1 arrays. Comparisons between the sample groups allow the identification of genes with localized expression patterns. Keywords = Drosophila, wing disc, spatially restricted transcripts Keywords: repeat sample

2003-01-08 | GSE93 | GEO

Gene expression changes in Nicd induced wing disc hyperplasia

Project description:The outcome of Notch proliferation on proliferation depends on the context. In Drosophila wing imaginal discs Notch activation causes hyperplasia despite having localized inhibitory effects on proliferation. To understand te underlying mechanisms we have used genomic strategies to identify the Notch-Su(H) target genes during wing discs hyperplasis. these data are the results from expression profiling the RNAs from hyperplastic wing discs overexpressing Nicd. Direct comparison of third instar lavae wing imaginal disc Nicd (abxUbxFLPase; Act>y>Gal4, UAS GFP; FRT82B tubGal80 with UAS-Nicd; FRT82B) vs control (abxUbxFLPase; Act>y>Gal4, UAS GFP; FRT82B tubGal80 with FRT82B ). 4 Biological replicates, the 2nd replicate was performed as a dye-swap.

2013-12-31 | E-GEOD-41428 | biostudies-arrayexpress

Gene expression changes in Su(H) induced wing disc hyperplasia

Project description:The outcome of Notch activation of proliferation depends on cellular context. In Drosophila wing discs Notch pathway overactivation results in hyperplasia. To understand the mechanisms we have used genomic strategies to indetify the Notch-S(H) target genes directly regulated in wing disc hyperplasia. These data are the results from expression profiling the RNAs from hyperplastic wing discs overexpressing Su(H). Direct comparison of Giant third instar lavae wing imaginal disc (UAS-GFP:Su(H) expressed by the patched[559.1]-Gal4 driver) vs control (UAS-NLS-GFP expressed by the patched[559.1]-Gal4 driver). 3 Biological replicates, the 3rd replicate was performed as a dye-swap.

2013-12-31 | E-GEOD-41427 | biostudies-arrayexpress

Expression data from transdetermined Drosophila eye antennal imaginal disc by winged eye overexpression.

Project description:Drosophila imaginal disc cells exhibit a remarkable ability to switch cell fates under various perturbations, a phenomenon known as transdetermination (TD). The winged eye (wge) gene induces eye-to-wing TD by its overexpression in eye imaginal discs using eye specific Gal4 driver (eyeless-Gal4). Gene network controlling this process, however, is largely unclear. Additionally, we identified that heterochromatin-related histone methyltransferase Su(var)3-9 is essential for wge-mediated TD. We used microarray to detail the global gene network underlying wge-mediated eye-to-wing TD, and the involvement of Su(var)3-9 in the gene network.

2017-12-31 | GSE87622 | GEO

Identification of putative encoding smORF genes in drosophila imaginal discs

Project description:We aim to identify the genes that encode for putatives smORF peptides in imaginal leg disc at larval and pupal stages

2023-10-09 | GSE225561 | GEO

Can Scoliotic Discs be Controls for Molecular Studies in Intervertebral Disc Research?- Insights from Proteomics.

Project description:Research on disc degeneration has been heterogeneous in their use of control discs used for comparison with diseased discs. Discs from scoliosis, cadavers and voluntary organ donors are the common controls used in intervertebral disc research. In order to find out the ideal control among these discs, the characters of scoliotic discs and discs from MRI normal voluntary organ donors controls used in disc research has been analysed using proteomics and to establish 'True Controls' that can be utilized for future Intervertebral disc (IVD) research.

2022-06-09 | PXD018968 | Pride

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