Fig. 2. Graded Fj and Ds expression provide partially redundant directional cues. Schematics of representative equatorial sections of adult eyes. Yellow circles represent either incorrectly constructed ommatidia or ommatidia exhibiting severe misrotation (greater than 90° from normal). Relevant changes from wild type with regard to Fj and Ds function or expression are indicated at the bottom of each panel. Precise genotypes are listed below. Quantitative results are summarized in Table 1. The schematics along with the sections on which they are based are presented in Fig S1 in supplementary material. (A) w¹¹¹⁸. (B) w¹¹¹⁸; ds^38k/ds^UA071, fj^d1. (C) w¹¹¹⁸; fj^N7/ds^UA071, fj^d1. (D) w¹¹¹⁸; ds^38k, fj^N7/ds^UA071, fj^d1. (E) w¹¹¹⁸; fj^N7/ds^UA071, fj^d1; TubP-Gal4/UAS-Fj. (F) w¹¹¹⁸; ds^38k/ds^UA071, fj^d1; TubP-Gal4/UAS-Ds. (G) w¹¹¹⁸; ds^38k, fj^N7/ds^UA071, fj^d1; TubP-Gal4, UAS-Ds/UAS-Fj. (H) w¹¹¹⁸; ds^38k, fj^N7/ds^UA071, fj^d1; TubP-Gal4/UAS-Ds. (I) w¹¹¹⁸; ds^38k, fj^N7/ds^UA071, fj^d1; TubP-Gal4/UAS-Fj.