E The vg-Gal4-driven HA-dL(3) mbt overexpression causes a serrated wing (wing notching) phenotype. Flies expressing either UAS-GFP or UAS-HA-dL(3) mbt;UAS-GFP under vg-Gal4 were reared to adulthood at 25°C. P values were estimated by comparing the proportions via a two-proportion Z-test. Scale bars: 200μm. 