TABLE 1.
BST-2 in Galliformes and Passeriformes is evolving under positive selection
| Order | No. of sequences | Alignment length (aa) | Overall dN/dS (PAML model 0) | PAML model 8 vs model:a
|
Model 8 |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 8a |
7 |
||||||||||
| 2Δlnλ | dfb | P value | 2Δlnλ | dfb | P value | % sites under positive selection | dN/dS of selected class | ||||
| Galliformes | 14 | 244 | 0.58 | 7.2 | 1 | 0.007 | 15.3 | 2 | 0.0005 | 4.3 | 4.0 |
| Passeriformes | 19 | 192 | 0.32 | 7.7 | 1 | 0.006 | 14.8 | 2 | 0.0006 | 2.7 | 4.1 |
a
Likelihood ratio tests comparing a model that allows positive selection at a subset of sites (model 8) with each of two alternative models that only allow purifying and neutral selection (models 7 and 8a).
b
df, degrees of freedom.