Inducible degradation of the Mediator subunit Med19 reveals a dedicated role in the regulation of developmental genes expression

In the Drosophila wing imaginal disc, by using a inductible degradable version of Med19 degradation with RNAseq, we got access to the early consequences of Med19 depletion on gene expression. We showed that less than a quarter of the genes expressed in the wing disc were deregulated after Med19 loss. Strikingly, these genes exhibit a spatio-temporal expression pattern like transcription factors or Notch responsive genes that reveals Med19 dedicated role in the regulation of developmental gene transcription. RNAseq was done on drosophila wing discs from female ub> Med19AID L3 larvae that were either fed with Auxin analog NAA (AIDUbAux) to induce M19 degradation, or not (AIDUb) as a control. A second control was performed to monitor Auxin effect on drosophila wing discs from female Med19AID L3 larvae that were fed with Auxin (AIDAux).