Tsc1 mutant cells have a growth advantage under NR.

(A) Third instar eye discs with hsFlp control or Tsc1 mutant clones (marked by the absence of GFP) dissected from larvae reared under varying yeast concentrations. (B) Eye discs with hsFlp control or Tsc1 mutant clones (marked by the absence of GFP) dissected 72 hours after clone induction from larvae reared on NR. (C) Eyes with eyFlp control or Tsc1 mutant clones (marked by the absence of pigmentation) of animals reared on normal food and NR; (C’) quantification of eye sizes. (D) Scanning electron micrographs of eyes composed of control or Tsc1 mutant tissue of animals reared on normal food and 20 g/l food, and the quantification of eye size (D’), ommatidia size (n>260) (D”), and ommatidia number (D‴).