Expression of gbbScer\UAS.mNSmS1 under the control of Scer\GAL4ap-md544 results in 100% viability and an overall reduction in the size of the wing disc. Expression under the control of Scer\GAL4hh.PU results in 94% viability.
Expression of gbbScer\UAS.mNSmS1 under the control of Scer\GAL4ci.PU results in 3% viability, while expression under the control of Scer\GAL4dpp.blk1 results in 100% lethality. Scer\GAL4dpp.blk1-driven expression of gbbScer\UAS.mNSmS1 results in pharate adults, when dissected out of their pupal cases, showing macrochaetae and leg defects consistent with a reduction in BMP signaling. Wings from adult survivors show blistered and ectopic venation phenotypes.