QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

Help viewing high resolution images Return to article

Fig. 4. Function of the rho enhancer also diverged between D. melanogaster and D. virilis. (A-I) D. melanogaster transgenic flies carrying both Dmel rho^2.2-ß-Gal (magenta in A,C,D,F,G,I) and Dvir rho^4.2-GFP (green in B,C,E,F,H,I) reporters were generated. The activities of the two enhancers were then determined at different developmental stages: early in stage 10B (A-C), late in stage 10B (D-F) and stage 12 (G-I). (A-C) At early stage 10B, Dmel rho^2.2-ß-Gal (A) was activated, but Dvir rho^4.2-GFP (B) was not yet active (C). (D-F) Late in stage 10B, Dvir rho^4.2-GFP expression began (E) in a pattern similar to that of Dmel rho^2.2-ß-Gal (D). The domain of Dvir rho^4.2-GFP activation (E) largely overlapped with that of Dmel rho^2.2-ß-Gal (D), although a slight posterior expansion of Dvir rho^4.2-GFP was seen (F). (G-I) The anterior boundaries of the Dmel rho^2.2-ß-Gal (G) and Dvir rho^4.2-GFP (H) activation domains were similar, but the posterior expansion of Dvir rho^4.2-GFP expression became prominent (I). The right panels are merged images of the left and middle panels.

Return to article