Results of selection test on <i>Abpa27</i>, <i>Abpbg26</i> and <i>Abpbg27</i>.

aThe dN/dS ratio of the class of codons under positive selection is given with the percentage of codon sites predicted to be in that class. bThe p-value rejecting the model of neutral evolution (M8A) over that of selection (M8) is given. cSites with posterior probabilities greater than 0.9 are indicated in regular typeface; p>0.95 indicated in bold typeface and p>0.99 indicated in bold, underlined typeface.