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Fig. 7. Dpp signaling target pMad is enhanced by Sxl. (A-C) Wild type; (D-F) male
and female (G-I) discs expressing Sxl in the dorsal compartment stained for
ß-gal (red; reports dpp expression though dpp-lacZ) and
pMad (green; reports activation of Dpp signaling). (C,F,I) Merged images.
Below the dorsoventral boundary of the wing pouch (arrowheads) is a widened
zone of Dpp expression (D-I) and corresponding widening of pMad compared with
the ventral half. Scale bars: in C, 20 µm for A-C; in F, 20 µm for D-F;
in I, 20 µm for G-I. Anterior is towards the left, ventral is towards the
top. Confocal images throughout.
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