Boldface indicates that the difference is significant.

^aClassification according to whether the LRT for positive selection is significant on each branch (q = 0.10).

^bOnly branches from tree topologies for which the FSGD branch exists were used.

^cNonpaired Wilcoxon test. In bold if the difference is significant after Bonferroni correction (α = 0.05/30 = 0.0017).

^dDuplication or post-duplication mean − nonduplication mean.

^eIn amino acid substitutions/site.

^fValues for the foreground branch of each test.

(LRT) Likelihood ratio test.