Number of nonsynonymous substitutions per nonsynonymous site (dN) plotted against the number of synonymous substitutions per synonymous site (dS) in 86 <i>Acropora millepora</i>–<i>A. palmata</i> putative homologous pairs. IguchiAkira ShinzatoChuya ForêtSylvain MillerDavid J. 2013 <p>The line shows the neutral expectation (dN = dS).</p>