Homozygotes have a vgnw wing phenotype. Postscutellars and halteres are missing. vg79f2/vg83b27 transheterozygotes have wild-type postscutellars, and missing wings and halteres.
homozygous wing phenotype like that of vgnw halteres absent postscutellar bristles absent homozygous viable female-fertile?
Induced in a middle stage spermatid in a wild-type male.