
Fig. 1. Two classes of bristle phenotypes in phyl mutant adults. (A,C,E,G,I) Wild types. (B,D) phyl1/phyl4 and (F,H,J) phyl2245/phyl4 mutants. (A,B) Adult nota. (C,D) Adult abdominal segment 2-4. Arrows in B and D mark the abnormal bristles. (E-J) X-gal staining of nota dissected from ac-lacZ (E,F), A101 (G,H), and ase-lacZ (I,J) pupae at 14-18 hour APF (for ac-lacZ and A101) or 18-22 hour APF (for ase-lacZ).