The number of fibers in the tergal depressor of trochanter (TDT) muscles is reduced in addition to the morphology of these muscles being abnormal in hemizygous cv1 males and cv1/cv43 females.
cv1/Df(1)C149 animals have a reduced number of fibres in the tergal depressor of the trochanter (TDT) muscles.
Both the anterior and posterior crossveins are missing in the wings of cv1 flies.
cv1 mutants exhibit an absence of crossveins and a delta at the tips of the L3 and L4 veins. The longitudinal veins in cv1 mutants show poorly defined edges and trajectories often broadening and meandering along their length in a manner similar to that seen in sog mutant wing tissue.
Wing effects due to excessive contraction in the pupal period, obliterating the cavity which should normally remain between the epithelia to form the vein.
Crossveins absent or traces only present. Veins L3 and L4 slightly δ at tips. Classifiable in unexpanded wings. RK1.