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Fig. 6. Msk prevents vein fate. (A-J) Adult wings, anterior upwards.
(A-H) Broken lines in A-C and F-H indicate the AP boundary; magnifications are
equal in all panels; genotypes/driven elements are indicated. Arrows indicate
Twiggy wing phenotype in A. Asterisks indicate lost veins in B,C,H. There is
enhancement of vein loss by Msk (arrows in G,H) and enhanced vein formation by
msk loss-of-function mutation (compare at arrows in D and I, E and
J).