Truncated Amx causes wing notching or wing loss when expressed with multiple wing-expressed GAL4 drivers.

(A) Amx^ΔECD expressed in the developing wing pouch with nub-GAL4 causes notching along the wing margin. (B) Homozygous nub-GAL4, UAS-amx^ΔECD recombinant animals show near complete loss of wing (arrow). (C) dpp-GAL4 (expressed between the third and fourth wing veins) driven expression of Amx^FL has no effect on wing morphology. (D) dpp-GAL4 driven expression of Amx^ΔECD causes notching at the wing tip.

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