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Fig. 3. Synergistic activation of 3EE-GFP by eya, so and
dpp. (A-C) Each set of three panels shows the same wing disc stained
with anti-Dac (magenta) and anti-GFP (green) or a merge of the two channels.
(A) Wing imaginal discs in which the expression of UAS-ey is driven
by 30A-Gal4 show ectopic expression of 3EE-GFP and Dac in two regions
at the anteroposterior (AP) compartment boundary. (B) Wing imaginal discs
expressing a combination of eya and so driven by
30A-Gal4 can strongly induce 3EE-GFP and Dac at the AP compartment
boundary where their expression coincides with endogenous dpp
(white). (C) A combination of dpp, eya and so driven by
30A-Gal4 synergistically induces the expression of 3EE-GFP
and Dac in the entire ring around the wing pouch.