Homozygotes are flightless and have a normal wing posture.
Flightless, jumping ability poor; mosaic analysis suggests primary defect could be in muscles (Homyk, 1977). In fliF2 and fliF3, indirect flight muscles have relatively mild abnormalities of z bands and myofibrils. Reduced amounts of at least two high-molecular-weight proteins from indirect flight muscles (Deak, Rahmi, Bellamy, Bienz, Blumer, Fenner, Golin, Ramp, Reinhardt, Dubendorfer and Cotton, 1980; Deak, Bellamy, Bienz, Dubuis, Fenner, Gollin, Rahmi, Ramp, Reinhardt and Cotton, 1982).
Homyk.