Figure 4.—

Maternal enhancement of dpp mutant progeny by all sax alleles. Test crosses between all sax alleles and dpp^hr4 were performed in both directions, with respect to the genotypes of the females and males. Crosses in which the females were mutant for sax are represented by the solid bars, and the male sax mutant crosses are represented by shaded bars. The genotypes of tested chromosomes are listed below. cn¹ bw¹ sp¹ is the parental chromosome for sax¹, sax^1rv1, and sax^1rv5. nub¹ b¹ pr¹ is the parental chromosome for sax³, sax⁴, sax⁵, and sax⁶. For female sax mutant crosses, the number of progeny scored per cross was ≥550 (except sax^P, n = 417). For male sax mutants crosses, the number of progeny scored per cross was ≥345 (except sax², n = 155; sax^PE4, n = 269).