Log-likelihood values and parameter estimates under site models for the nine mammalian BRCA1 genes.

<p>Note.— <i>p</i>: Number of parameters including 15 branch lengths in the tree (<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0003746#pone-0003746-g004" target="_blank">Figure 4</a>). Estimates of <i>κ</i> range from 3.4 to 3.6 among models. Sites potentially under positive selection are listed for different models, with the human sequence used as reference. The posterior probability <i>P</i> that a site is from the positive-selection class is calculated using BEB <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0003746#pone.0003746-Yang4" target="_blank">[17]</a>.