Phylogeny of <i>Retn</i> and <i>Retnl</i> genes.

Abstract

<p>Phylogeny inferred by the Bayesian method for 136 <i>Retn</i> and <i>Retnl</i> sequences from diverse vertebrates. The phylogeny was rooted with the Coelacanth <i>Retn</i> sequence. Similar phylogenies were obtained if sequences from Sauria (coelacanth sequence not used) were used as the outgroup or if other methods were used (e.g., see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0130188#pone.0130188.s006" target="_blank">S6 Fig</a>). Numbers at the nodes indicate posterior probabilities, with those for the nodes in early mammalian evolution shown in bold. Branch lengths are proportional to the inferred amount of change, with the scale bar at the bottom. Diamonds indicate inferred gene duplication events. <i>Retnl</i> genes are shown in the upper part of the tree while <i>Retn</i> genes are below.</p