Venn diagrams of differentially expressed genes. Results of each strain of redband trout for a) all significant transcripts (FDR ≤ 0.05); and b) strongly differentiated transcripts (>4 fold change and FDR ≤ 0.05). Circles are color coded to represent fish by their environment: desert strain (red; LJ = Little Jacks Cr.), F1 crosses (gray; LJxK), montane strain (blue; K = Keithley Cr.). For a) there were 12,314 genes that were not statistically significant at either level and are listed outside of the circles on the Venn diagram.