Fig. 3. Reversals in the pattern of Fj and Ds expression can redirect ommatidial polarity. Schematics of representative sections of adult eyes. Relevant changes from wild type with regard to Fj and Ds function or expression are indicated at the bottom of each panel. Yellow circles indicate ommatidia that were either incorrectly formed or severely misrotated. The schematics along with the sections on which they are based are presented in Fig. S2 in supplementary material. (A,B,E,G-I) Equatorial sections; (C,D,F) polar sections. (A) w¹¹¹⁸; TubP-Gal4/UAS-Fj. (B) w¹¹¹⁸; fj^Vg1-Gal4/+; UAS-Fj/+. (C) w¹¹¹⁸, Omb3-Gal4/w¹¹¹⁸; UAS-Fj/+. (D) w¹¹¹⁸, Omb3-Gal4/w¹¹¹⁸; fj^N7/ds^UA071, fj^d1; UAS-Fj/+. (E) w¹¹¹⁸; TubP-Gal4/UAS-Ds. (F) w¹¹¹⁸, Omb3-Gal4/w¹¹¹⁸; UAS-Ds/+. (G) w¹¹¹⁸; fj^Vg1-Gal4/+; UAS-Ds/+. (H) w¹¹¹⁸; ds^UA071, fj^Vg1-Gal4/ds^38k; UAS-Ds/+. (I) w¹¹¹⁸; ds^UA071, fj^Vg1-Gal4/ds^38k fj^N7; UAS-Ds/+.