Representative genes with high diversity or under positive selection.

a<p>Nucleotide diversity value (π) of orthologs of sequenced <i>Edwardsiella</i> strains <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036987#pone.0036987-Nei2" target="_blank">[43]</a>; Representative genes which differed by above 1.5 σ from the average π value of all orthogolous were listed.</p>b<p>χ² test of nonsynonymous (NonSyn) changes of <i>E. tarda</i> EdwGI strains/<i>E. ictaluri</i> and <i>E. tarda</i> EdwGI/EdwGII lineages.</p>c<p>LRT test of branch and site models in PAML package <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036987#pone.0036987-Yang1" target="_blank">[44]</a>.</p>*<p><i>p</i><0.05;</p>**<p><i>p</i><0.01.</p><p>The detailed <i>p</i> value and other information were shown in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036987#pone.0036987.s014" target="_blank">Tables S10</a> and <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0036987#pone.0036987.s015" target="_blank">S11</a>.