Embryos expressing wrapperScer\UAS.cNa under the control of Scer\GAL4elav.PLu show death of some midline glia and fusion of some commissures. Some neurons and possibly glia in the lateral region of the central nervous system also die in these embryos. A similar phenotype is seen in embryos expressing wrapperScer\UAS.cNa under the control of Scer\GAL4sca-537.4. No phenotypic effects are seen when wrapperScer\UAS.cNa is expressed using Scer\GAL4unspecified either on all muscles or in all photoreceptor neurons in the developing eye.
Expression of wrapperScer\UAS.cNa under the control of Scer\GAL4wrapper.CH321-61P08 rescues the near complete embryonic lethality of wrapperR175 homozygous mutants - the rescued embryos display larval hatching and adult eclosion rates that are comparable to wild-type.