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Fig. 5. The Fj gradient plays only a minor role in PCP. (A-D) Hair polarity in
adult wings. (A) ds05142 fjd1. Polarity is not
appreciably worse than in ds05142 (see
Fig. 4A). (B)
UAS-ds/+; fjd1; tub-ga4/+ and (C)
tub-gal4/UAS-ds UAS-fj. Polarity is normal, except in the proximal
wing. (D,F) UAS-ds/+; fjd1
sal-gal4/fjd1. (E) UAS-ds; sal-gal4/+. (E,F)
The hair polarity near the tip of L2 was abnormal in a
fjd1 background (also compare D with
Fig. 3B).