Method | LRT for model allowing ω > 1 rate classes^{*} | Percentage of sites in ω > 1 rate classes | Mean ω per ω > 1 rate class |

Rate class | |||

PARRIS | 9.16 (0.01) | 15% | 4.3 |

Evolutionary fingerprint | 26.1 (0.006) | 27% | 4.4 |

Codon-specific | Codon 3 dN–dS^{†} | Codon 18dN–dS^{†} | Codon 46 dN–dS^{†} |

SLAC | 18.1 (0.09) | — | — |

FEL | 1.1 (0.03) | 0.93 (0.03) | 0.74 (0.04) |

REL | 3.2 (0.99) | 3.3 (0.99) | — |

dN–dS, normalized difference between nonsynonymous substitutions per nonsynonymous sites (dN) and synonymous substitutions per synonymous sites (dS); FEL, fixed-effects likelihood; LRT, likelihood ratio test; PARRIS, partitioning approach for robust inference of selection; PP, posterior probability; REL, random-effects likelihood; SLAC, single likelihood ancestral counting; ω, dN/dS ratio.

↵*Values in parentheses are

*P*values.↵

^{†}Values in parentheses are*P*values/posterior probability.