Figure 4. east corresponds to suppressor of white-spotted.

All flies shown are homozygous for w ^sp1. (A) In male pharates dissected out of pupal cases, the mutations east ^hop7 and su(w ^sp ) ¹ suppress the loss of eye pigmentation resulting from the white mutation w ^sp1. (B) The mutations east ^hop7 and su(w ^sp ) ¹ show complementation. Like su(w ^sp ) ¹/su(w ^sp ) ¹, the combination east ^hop7/su(w ^sp ) ¹ restores eye pigmentation to almost wildtype levels. Heterozygous flies of each mutation display intermediate eye pigmentation.