Maximum likelihood phylogenetic tree based on 16S rRNA gene sequences of bacteria and mitochondria of eukaryota.

<p>The phylogenetic tree was calculated with MEGA5.2.2 using the maximum likelihood method. The tree is based on the alignment of the 71 sequences (16S rRNA gene sequences). The percentages of bootstrap values for 1,000 replications are shown at the branching points (values less than 50% were ignored). The scale bar indicates substitutions per site. A sequence of chloroplast of <i>Zea mays</i> was used as an outgroup. Accession numbers of each sequence are shown in parentheses.