6bp of the wild-type TATA box has been replaced with the 6bp recognition site for the SmaI restriction enzyme.
abnormal body color (with y2)
adult cuticle (with y2)
adult cuticle (with y62a)
adult cuticle (with y82f29)
adult cuticle (with y2374)
Body colour: homozygous and hemizygous flies show a reduction in pigmentation of all adult cuticular structures. Wings have intermediate pigmentation, the body has a low level of pigmentation and the bristles show fully mutant pigmentation. ytata can support transvection when placed in trans to y2; y2/ytata flies have a darker wing and body colour than flies homozygous or hemizygous for either y2 or ytata.