Fig. 4. aos^rlt is dominantly suppressed by components of the Egfr pathway and nemo. Panels show tangential adult eye sections through equatorial regions and corresponding schematic drawings indicating ommatidial rotation. Orientation and arrows are as in Fig. 1, `stars' indicate rare event of symmetrical ommatidia. (A) aos^rlt/aos^rlt. (B) Egfr^top1/+; aos^rlt/aos^rlt, (C) ras1^e2F/+, aos^rlt/aos^rlt. (D) pnt⁸⁸/+; aos^rlt/aos^rlt. (E) nmo^P1/+, aos^rlt/aos^rlt.