Homozygotes have a vgnw wing phenotype. Postscutellars and halteres are missing. vg83b39/vg83b27 transheterozygotes have vgs wings, missing halteres and wild-type postscutellars.
homozygous wing phenotype like that of vgnw halteres absent postscutellar bristles absent homozygous viable female-fertile?
Induced in a late stage spermatid in a wild-type male.
"irradiation" was stated as tentative. "spontaneous" was stated as tentative.