Figure 2

The presence of spen mutant clones affects wing vein morphology. Virgin females with the genotype {MS1096 GAL4; 40 2piM FRT^40A}, {MS1096 GAL4; spen^poc231 FRT^40A/ ln (2LR) CyO}, or {MS1096 GAL4; spen^poc361 FRT^40A/ ln (2LR) CyO}, were crossed to {w*; GFP FRT^40A; UAS-Flp1/TM6b} males, and adult wings were isolated from progeny females with the following genotypes: {MS1096 GAL4/+; 40 2 piM FRT^40A/GFP FRT^40A; UAS Flp1/ +} (A), {MS1096 GAL4/+; spen^poc361 FRT^40A/ GFP FRT 40A; TM6b/ +} (B), {MS1096 GAL4/+; spen^poc231 FRT^40A/ GFP FRT^40A; UAS-Flp1/ +} (C, D), and {MS1096 GAL4/+; spen^poc361 FRT^40A/ GFP FRT^40A; UAS-Flp1/ +} (E, F). Arrows indicate gain (C, E, F), loss (D, F), or misplacement (E) of vein material.