Expression of HScer\UAS.cGa throughout the wing disc, under the control of Scer\GAL4sd-SG29.1, results in wing discs with no clear dorsal/ventral boundary.
Expression of HScer\UAS.cGa in non-sensory organ precursors, driven by Scer\GAL4mα.hs, converts some of these cells into sensory organ precursors that are either normal or display a double shaft phenotype.
Expression of HScer\UAS.cGa under the control of Scer\GAL4sca-537.4 results in a bristle socket-to-shaft transformation phenotype. The converted socket cells and normal shaft cells produce shafts of nearly equal length. All bristles lack normal sockets and have ectopic shaft structures in flies expressing HScer\UAS.cGa under the control of Scer\GAL4Su(H).ASE5.
Pupae in which HScer\UAS.cGa is expressed under the control of Scer\GAL4hs.PB using heat shock at 37oC for 2 hours during the tormogen-trichogen cell fate decision show socket-to-shaft cell fate transformations.
Larvae expressing HScer\UAS.cGa under the control of Scer\GAL4T113 have much smaller eye discs than normal. Adults derived from these larvae have small eyes, and in the most severe cases the eyes are missing. This eye phenotype is not associated with severe eye roughness. The flies also have small wings and halteres, and many extra thoracic bristles. Flies expressing HScer\UAS.cGa under the control of Scer\GAL4vg.int2.1 have wing defects ranging from wing margin notches to rudimentary wings.