adult wings are slightly larger than control wings expressing only the driver.
Strong overexpression meltScer\UAS.cTa
in the developing and adult eye does not noticeably affect eye size or morphology.
The total number of photoreceptors, as well as the number of Rh5
-positive and Rh6
-positive photoreceptors is normal in the eyes of larvae expressing meltScer\UAS.cTa
under the control of Scer\GAL4so-7.GAL4
Expression of meltScer\UAS.cTa
in all photoreceptors, driven by Scer\GAL4GMR.long
, causes R8 photoreceptors to adopt a p fate. The dorsal rim area R8 cells are not affected. Expression of meltScer\UAS.cTa
, under the control of Scer\GAL4Rh5.PT
in R8 photoreceptor cells, increases the number of cells that adopt an R8 fate and causes ~63% of cells to express both Rh5
, which are indicative of both p and y fates. Expression of this transgene in R7 photoreceptor cells, driven by Scer\GAL4Rh3.PP
, does not affect the fate specification of R8 cells.