UAS regulatory sequences drive expression of an inverted repeat of a 484bp fragment of ix (nucleotides 2R:11359517-11360000 , release 6 genome). The repeats are in tail-to-tail orientation (with a white intron spacer between them).
abnormal sex-determination, with Scer\GAL4esg.PU
Expression of ixdsRNA.Scer\UAS.WIZ under the control of Scer\GAL4esg.PU results in sex transformation.