Fig. 3: Phylogenetic relationships of Candidatus Bodocaedibacter vickermanii and other alpha-proteobacterial endosymbionts of protists.

A maximum likelihood tree estimated from a concatenated alignment of 187 protein sequences. The tree is rooted with an outgroup (Mcm). Bootstrap values shown on the nodes are calculated from 1000 non-parametric replicates. The scale bar (0.3) is the number of amino acid substitutions per site. Cartoons shown next to tree represent the isolation source (see Table 1 for details). Two columns on the right side depict the average amino acid identity (AAI) and number of orthologous gene clusters shared between Ca. B. vickermanii and each other genome sequence, with the corresponding value as a percentage of all genes shown in brackets.