eyaE7.Scer\UAS shows a synergy in ectopic eye formation when coexpressed under the control of Scer\GAL4dpp.blk1 with dacScer\UAS.cSa. eyaE11.Scer\UAS shows a synergy in ectopic eye formation when coexpressed under the control of Scer\GAL4dpp.blk1 with dacScer\UAS.cSa.
Enhances the ectopic retinal development phenotype in the wing and haltere discs caused by expression of eyScer\UAS.cHa under the control of Scer\GAL430A. When eyScer\UAS.cHa and dacScer\UAS.cSa are coexpressed under the control of Scer\GAL430A, large ectopic eyes are seen on the wing and haltere hinges with complete penetrance. Clear ommatidial structures are seen on both the dorsal and ventral side of the wing hinge and the structure of the lens and interommatidial bristles is similar to wild-type.
Coexpression of eyaScer\UAS.cPa and dacScer\UAS.cSa using Scer\GAL4dpp.blk1 induces substantial ectopic eyes on the head, legs, wings and dorsal thorax. The cuticle between the normal eye field and the antenna is transformed into retinal cells such that the normal retinal field is expanded. Large patches of pigment are induced on the dorsal side of the femur and tibia of all legs, which are severely truncated. Ommatidial structures are observed in these patches. Red pigment, but no clear ommatidial morphology, is induced on the wing blade. Ectopic eyes are induced bilaterally on the dorsal thorax. All these phenotypes have 100% penetrance. Coexpression of eyaScer\UAS.cPa and dacScer\UAS.cSa using Scer\GAL4dpp.blk1 induces ectopic morphogenetic furrow advancement from the ventral side of the eye in late larval eye-antennal discs. Substantial ectopic photoreceptor development is also seen. The axons of these ectopic photoreceptors form a bundle that extends posteriorly into the eye imaginal disc. These axons appear to fuse with the axon tracts sent out by photoreceptors of the normal retinal field and probably exit through the optic stalk and synapse with the larval brain. Ectopic neurons are induced in leg and wing discs. Axons extended by these neurons retract during late larval and pupal development.