^aClassification of topologies and branches following that in Figure 1. FSGD, fish-specific genome duplication.

^bNumber of trees where the model A with foreground ω₂ > 1 is significantly more likely than the model A with ω₂ = 1, with multiple test correction by the q-value of Storey and Tibshirani (2003) over all tests performed. (LRT) Likelihood ratio test.

^cThe number of trees with at least one branch where positive selection was significant.