| | Parameter estimates | dN/dS | Likelihood scores () | Model comparison (, d.f., ) | Positive selection |
| M0: one ratio | | 0.08 | −24586.10 | | None |
| M1: Nearly neutral | , , (, ) | 0.17 | −24010.40 | | Not allowed |
| M2: Positive selection | , , , (, , ) | 0.17 | −24010.40 | M2 versus M1:0, d.f. = 2, | None |
| M7: β, Neutral | , | 0.10 | −23443.16 | | Not allowed |
| M8: , Selection | , , , (), | 0.10 | −23434.07 | M7 versus M8: 18.18, d.f. = 2, | See Table 6 |
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