Transcriptomics

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Transcriptional profiling of Drosophila wing pouch following CR32027 RNAi


ABSTRACT: The eukaryotic cell cycle, driven by both transcriptional and post-translational mechanisms, is the central molecular oscillator underlying tissue growth throughout animals. While genome-wide studies have investigated cell cycle-associated transcription in unicellular systems, global patterns of periodic transcription in multicellular tissues remain largely unexplored. Here we define the cell cycle-associated transcriptome of the developing Drosophila wing epithelium and compare it with that of cultured Drosophila S2 cells, revealing a core set of periodic genes as well as a surprising degree of context-specificity in periodic transcription. We further employ RNAi-mediated phenotypic profiling to define functional requirements for over 300 periodic genes, with a focus on those required for cell proliferation in vivo. Finally, we investigate the role of novel genes required for interkinetic nuclear migration. Combined, these findings provide a global perspective on cell cycle control in vivo, and highlight a critical need to understand the context-specific regulation of cell proliferation. Two RNAi lines of CR32027, a non-coding RNA gene identified in this study, are examined for transcriptional changes relative to wt.

ORGANISM(S): Drosophila melanogaster

PROVIDER: GSE54927 | GEO | 2014/03/15

SECONDARY ACCESSION(S): PRJNA238066

REPOSITORIES: GEO

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