The decreased ovary size and germline cells differentiation defects observed in adult MESR4V5.miGFPi females upon Scer\GAL4nos.UTR.T:Hsim\VP16-driven knock-down of MESR4 using the miGFPi method (RNAi is targeted against the GFP tag inserted in a particular gene locus) is fully rescued by co-expression of MESR4Scer\UAS.P\T.cWa.