Fig. 7. Sqz represses Rn function in Drosophila wing and leg. (A) sqz expression in rn²⁰ wing disc as monitored by in situ hybridization. The expression is strong in the center and fades off laterally. The proximal limit coincides with the distal-most fold that is the limit of vg expression. (B-D) Wing (B), leg (C) and wing disc (D) showing wg expression (red, D) in rnGal4/UASsqz UASGFP. The wing hinge is reduced and tarsal segments are deleted (B,C, black arrows). wg expression in the IR is much reduced (D, arrow) but expression in the OR is not affected (D, arrowhead; here partially out of focus).