Phylogenetic range of <i>rnpA</i> heterologs investigated in this study.

<p>The phylogenetic position and range of sources of heterologous <i>rnpA</i> cloned into pSWAP for complementation and fitness studies are shown on a consensus eubacterial phylogenetic tree. The sampled branches are shown in boldface, and the species listed in italics alongside. <i>Escherichia coli</i> (bold) was used as control. The two numbers in the parentheses quantify the pairwise divergence between the heterologous and the <i>E. coli rnpA</i> sequences: the first number is the unadjusted pairwise amino-acid divergence across the entire length of the sequence (expressed as a percentage), the second the corrected per-site divergence (number of amino-acid substitutions per amino-acid site using JTT substitution model as implemented in MEGA5.0 <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0032456#pone.0032456-Tamura1" target="_blank">[51]</a>). Eubacterial phylogenetic tree adapted from <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0032456#pone.0032456-Woese1" target="_blank">[47]</a>.