UAS regulatory sequences drive expression of a constitutively active form of sev tagged with CFP.
eye, with Scer\GAL4GMR.PF
photoreceptor cell R7, with Scer\GAL4GMR.PF
Flies expressing sevS11.Scer\UAS.T:Avic\GFP-CFP under the control of Scer\GAL4GMR.PF display a rough-eye phenotype, with supernumerary R7 photoreceptor cells.