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ABSTRACT: Drosophila melanogaster miR310 cluster over-expression and knockout

OTHER RELATED OMICS DATASETS IN: GSE15863

PROVIDER: PRJNA116965 | ENA |

REPOSITORIES: ENA

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Expression profiling of over-expression of conspecific and heterspecific miR-310 cluster in Drosophila (tiling array)

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Project description:We tested and measured the strength of heterospecific interactions between microRNAs and their targets by carrying out transgenic experiments across Drosophila species, by over-expressing the miR310s cluster of D. melanogaster (Dm310s) and D. pseudoobscura (Dp310s) in D. melanogaster. A knockout line, referred to as Dm310s (−), was also included for comparison. The whole-genome expression (WGE) of the Dp310s and Dm310s transgenic lines were compared on two platforms of both Affymetrix tiling array and DGRC cDNA array. The WGE of knockout line was assayed on only Affymetrix tiling array. In the Dm310s lines, overexpression was more common than underexpression among misregulated genes while the pattern appeared to be reversed in the Dm310s(−) line. The number of genes significantly misexpressed under the influence of Dp310s is 3-10 times greater than under Dm310s. Importantly, the numbers of predicted targets are similar between them. Expression analysis of the predicted target genes suggests that miRNAs may sometimes function to buffer fluctuations in the transcriptome output. After the buffering function has evolved, heterospecific combinations may cause adverse effects. This SuperSeries is composed of the SubSeries listed below.

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