Fig. 4. Calibration of the delay between driver and reporter expression. Eye discs
are shown; anterior rightwards, dorsal upwards. (A,B) GMR directly driving
Gal4 (GMR:G); (C,D) GMR driving the MAP kinase-Gal4/Vp16 fusion
(GMR:MG); (E,F) GMR driving the nuclear localized MAP
kinase-Gal4/Vp16 fusion (GMR:NMG). Reporters (A,C,E)
UAS:lacZ, (B,D,F) UAS:GFP. In all cases, Glass antigen is
colocalized with the reporter antigen (ß-galactosidase or GFP) as
indicated. Leading edges of Glass expression (arrowheads) and of reporter
expression (arrows).