Heterozygotes have wild-type eyes.
Homozygous larvae have no imaginal discs, suggesting a defect in imaginal disc proliferation.
RfC40[+]/RfC4B6 is an enhancer of ommatidium phenotype of cutletrJ865a
RfC40[+]/RfC4B6 is an enhancer of eye photoreceptor cell phenotype of cutletrJ865a
The cutletrJ865a eye phenotype is enhanced by one copy of RfC40B6; the majority of ommatidial clusters in these flies have an abnormal number of photoreceptor cells and a large number of ommatidia are fused.