(a, b) dRagA activation increases sensitivity to starvation. Expression of dRagAQ61L using the fat-body-specific Cg-GAL4 driver significantly decreased survival of adult female flies under starvation (b) but not fed (a) conditions, relative to controls (Cg-GAL4 alone). Asterisks indicate significant difference, compared with controls. Data are mean ± s.d., *P 0.05, Students two-tailed t-test (n = 150 flies/genotype/treatment). 