Fig. 6. Dhc alleles and Gl¹ enhance the dominant eye phenotype associated with Elp¹. (A) Elp¹ exhibits a dominant rough eye phenotype, with elliptical eyes and disarranged ommatidial arrays. (B) Dhc^8-1/+ by itself does not have any dominant eye phenotype (not shown), but the combination of Dhc^8-1 and Elp¹ produces a reduced, narrower eye with fewer ommatidia. (D) Similarly, the combination of Gl¹ and Elp¹ results in a more extreme eye phenotype than that of either parent (see A and C for comparison). Genotypes shown: (A) Elp¹/+; +/+, (B) Elp¹/+; Dhc^8-1/+, (C) +/+; Gl¹ Sb/+, (D) Elp¹/+; Gl¹ Sb/+.