Fig. 7. Activation of the Wg pathway causes induction of Hfp in wing discs. Hfp expression in wing discs from larvae of the following genotypes: en-GAL4/+,UAS-GFP/+ (A-C), en-GAL4/+, UAS-GFP/+;UAS-hfp/+ (D-F), en-GAL4/+,UAS-GFP/+;UAS-sgg^DN/+ (G-I). (A,D,G), GFP (green) marks the posterior region of the wing disc, (B,E,H) anti-Hfp antibody staining (red), and (G,F,I) are merged images. (J-L) Hfp expression in axin mutant clones from third instar wing discs, (J) clones marked by the absence of GFP, (K) anti-Hfp antibody staining and (L) merged image. (M) Hfp expression and GFP in the ZNC of control C96-GAL4/+, UAS-GFP/+ wing discs, (N) Hfp expression in C96-GAL4/+, UAS-GFP/+, UAS-TCF^DN/+ and (O) merge with GFP.