Homozygotes and heterozygotes show reduced viability. Homozygotes are sterile and heterozygotes are partially sterile. Wings are held out horizontally and at 90o to the body, in a position very similar to that of tx mutants. The wings appear normal in all other aspects, although the flies are unable to perform certain courtship wing movements and are flightless.
Shelton.
Induced in: Oregon-R stock.