In homozygotes, eye is almond shaped but with normal facet development. Phenotype normal in heterozygotes with normal third but mutant when heterozygous to Dunspecified. Dfdunspecified/ale1 show normal eye size and 20% of flies show tufted vibrissae characteristic of Dfd/+. ale1 Abd-BMc homozygotes completely eyeless.
Dunspecified, ale1 has visible | dominant phenotype
ale1 is a suppressor of phenotype of Dfdunspecified