Polytene chromosomes normal.
female fertile
male fertile
haltere
wing
Homozygotes have a vg wing phenotype. Postscutellars and halteres are missing. vg81f/vg83b27 transheterozygotes have crumpled and blistered wings, wild-type halteres and wild-type postscutellars.
homozygous wing phenotype like that of vg halteres absent postscutellar bristles absent homozygous viable female-fertile?
Induced in: Mature spermatozoon.