myofibril & indirect flight muscle
RK1. Heterozygotes have a pair of comma-like depressions at the anterior edge of the dorsal metathorax, has inturned dorsocentral bristles and the cuticle appears soft.
Cma1/+ has a pair of comma-like depressions at the anterior edge of the dorsal mesothorax similar to those of some dp alleles, inturned dorsocentral bristles, a sr-like phenotype and a soft-appearing cuticle. Cma1/+ flies flightless, with abnormal myofibrils of indirect flight muscles (Mogami). Cma1/+ imparts dominance to the vortex effects of dp, dpv, dpov1 and dpolv. RK1.
E.B. Lewis, 1971.