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Fig. 4. Differential effect of StripeA and StripeB on Short stop levels.
Stage 14-15 wild-type embryos (A,D,D'), or embryos
overexpressing StripeA (B,E,E') or StripeB
(C,F,F') together with GFP driven by
ptc-gal4 were labeled for GFP (green, A,B,C) and Shot (red,
D-F'). Only StripeA induced the ectopic expression of Shot. Arrowheads
and brackets mark the ptc-gal4 domain. D',E' and F'
represent higher magnification of D,E,F. Note the change in cell shape induced
by StripeA (arrows in E,F and white outlines marking a single cell in each
panel).