FIG. 2.
Genetic enhancement of esc loss by reduced escl dosage. Extra sex combs phenotypes (A) and antenna-to-leg transformations (B) are shown for the indicated genotypes. T1, T2, and T3 indicate the first, second, and third thoracic legs, respectively. The arrow under T2 indicates an example of a partial extra sex comb. Arrows in panel B indicate partial transformations of antennae towards legs. Genetic enhancement is evident by comparing the phenotypes of esc2/Dfesc10 (second row) and esc2/Df(Prl) (third row) flies. The enhanced esc2/Df(Prl) phenotype is rescued by a single copy of an escl transgene (fourth row).