SAGA is epistatic to the TORC1 and TORC2 pathways in the regulation of differentiation in response to nutrient availability. (A,B,D,E) Expression of mei2+ (B,E) using quantitative RT-PCR of RNA extracted from cells grown either in nutrient rich medium (dark gray) or shifted for 4 hours to starvation medium (light grey). Cells of the following genotypes were analyzed: wild-type isogenic controls (WT), gcn5Η, tsc1Η, gcn5Η tsc1Η, tsc2Η, gcn5Η tsc2Η, rhb1-DA4 - a constitutively active (CA) rhb1 mutant [34], gcn5Η rhb1-DA4, tor2-L1310P - a CA tor2 mutant [33], gcn5Η tor2-L1310P, tor1Η, gcn5Η tor1Η, gad8Η, and gcn5Η gad8Η. act1+ served as a control for normalization across samples. Values from a WT strain grown in rich medium were set at 1 to allow comparisons across culture conditions and mutant strains. Each column represents the mean value of 3 (D,E) independent experiments, overlaid with individual data points and standard error (SE) bars. Statistical significance was determined by 2-way ANOVA followed by Bonferroni's multiple comparison tests (n = 3 for D,E). 