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Fig. 3. Wing hair polarity after patterned ds misexpression. (A-C)
Diagrams of hair polarity (red arrows) in adult wings. Approximate regions of
Gal4-driven gene misexpression are shown in green. (A) Wild type. Veins are
labeled as in Fig. 1, with the
addition of the posterior cross vein (PCV). (B,C) Gradients of ds
misexpression commonly reorient hairs from regions of high to low expression.
(B) UAS-ds/+; salgal4/+. (C) UAS-ds/+;
dllgal4/+. (D-F) Hair polarity in a region just distal to the PCV.
(D) Wild type. (E) UAS-ds/+; salgal4/+. (F)
sal-gal4/+; UAS-fz-GFP/+ induces multiple wing hair
phenotype (arrowheads). (G,H) Redistribution of Fz-GFP (green, white) by Ds
(red) in sal-gal4/+; UAS-ds/+ wing at 26 hours AP; region
shown is posterior to the PCV. The normally distal (right) Fz localization
within each cell has frequently changed to the posterior (H, arrowheads).
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