Homozygotes have no morphological defects.
Su(mg)1-91-9 is a suppressor of phenotype of mod(mdg4)ul
Completely suppresses the enhancing effect of mod(mdg4)ul on the y2 phenotype. Has no effect on the interaction between mod(mdg4)ul and the ct6 or scD1 mutations.
Isolated as a suppressor of the enhancing effect of mod(mdg4)ul on the y2 phenotype.