Fig. 8. Egfr^tsla clones do not affect the speed of furrow progression or Atonal patterning. Eye discs with Egfr^tsla clones, stained for Atonal antigen. (A,C,D,F) GFP; (B,C,E,F) Atonal. Mosaic clones are negatively marked by GFP and are outlined. (A-C) ey:FLP-induced clone homozygous for Egfr^tsla, raised at 18°C, then at 30°C for 24 hours. Note that the position of the furrow is the same in the clone (black arrowheads) and in the flanking territory (white arrowheads). (D-F) Same genotype, raised continuously at 30°C. Note the normal appearance of Atonal expression in the mutant territory, both anterior (white arrow) and posterior (black arrow) to the furrow. Scale bar: 20 µm.