FIG. 1.

Dominant effects of mod(mdg4) mutations on the ct^K cut wing phenotype. (A) Representative wings from the indicated genotypes. The mod(mdg4)^u1 and mod(mdg4)^T6 mutations strongly suppress the cut wing phenotype, and the mod(mdg4)^bpdEX57 mutation and the Df(3R)e-BS2 deficiency that deletes the mod(mdg4) gene weakly suppress it. Rare mod(mdg4)^neo129 homozygotes generated at 29°C show strong but incomplete suppression. The wings shown represent the median phenotypes for the indicated genotypes. (B) Box plot of the suppression of the ct^K mutant phenotype by selected mod(mdg4) alleles. The percentage of the wing margin lacking bristles was measured from 10 randomly chosen wings for each genotype, and a box plot was generated. The five horizontal lines from top to bottom for each genotype are the 90th, 75th, 50th, 25th, and 10th percentiles. The circles are the minimum and maximum values observed for each genotype.