GMR regulatory sequences and a minimal Hsp70 promoter drive expression of a genomic-cDNA hybrid w gene (consists of the 5' end of the cDNA until the ApaI site fused to the genomic 3' end of the gene).
wGMR.PT rescues wunspecified
wGMR.PT restores all eye pigmentation in a wunspecified fly, including the subretinal pigment.