Click on image to view larger version.

Fig. 2. Ectopic expression of DMyb causes malformation in the larval wing disc. Imaginal wing discs dissected from wandering third instar larvae, posterior to the right in all figures. (A-C) Fluorescent micrographs showing the expression patterns of the en-Gal4 and sd-Gal4 drivers: (A) en-Gal4/UAS-GFP, (B) en-Gal4/UAS-
DMyb and (C) sd-Gal4/UAS-GFP. Red, DAPI-staining to visualize nuclei; green, either (A,C) GFP fluorescence or (B) staining with an antibody raised against the DNA-binding domain of DMyb (Jackson et al., 2001). Note the difference in the shape of the disc when
DMyb is expressed in the posterior compartment. (D-F) Micrographs using differential interference contrast (DIC) optics show a comparison between the appearance of (D) a control en-Gal4/+ wing disc and discs in which DMyb has been ectopically expressed; (E) en-Gal4/UAS-DMyb; and (F) sd-Gal4/UAS-
DMyb. Scale bars: in A, 0.05 mm for A-C; in D, 0.05 mm in D-F.