Scer\GAL4ptc-559.1-driven expression of MadMMM.Scer\UAS induces a crossvein-like phenotype. When driven in the dorsal wing compartment with Scer\GAL4ap-md544, MadMMM.Scer\UAS induces large amounts of ectopic vein tissue, accompanied by blistering.
Overexpression of MadMMM.Scer\UAS using Scer\GAL4A9 driver induces ectopic bristles on longitudinal veins.
When driven by Scer\GAL4sd-SG29.1, MadMMM.Scer\UAS can induce chemosensory bristles on the wing blade itself in the absence of ectopic vein tissue.