Fig. 7. Egfr^tsla clones affect cell growth, late R8 spacing and neural differentiation. (A-H) Eye discs with ey:Flp induced mosaic clones are shown; clones are negatively marked with GFP and are outlined in E-H. (A-D) Homozygous clone genotypes and the times incubated at each temperature are indicated (see text). (E-H) Egfr^tsla clones, raised at 18°C, and shifted to 30°C 24 hours before dissection. (E,F) Senseless; note the presence of Senseless-positive R8 cells, sometimes immediately adjacent to each other (arrow). (G,H) Elav; note that although most Elav-positive cells are lost (asterisk), some persist for some time (arrows).