Figure 1. Effects of beneficial mutations in alternative environments.

Genotypes are designated as single letters and define alleles: rbs (r), topA (t), spot (s), glmS (g), and pykF (p). Fill color defines the environment: black, DM25, white, EGTA, and grey, guanazole. Mutational effects were determined to depend on the environment using an ANOVA. Asterisks represent significance based on a P value < 0.05.