Figure 1.

Phylogenetic tree highlighting the position of B. coprosuis relative to the other type strains within the genus Bacteroides. The tree was inferred from 1,412 aligned characters [8,9] of the 16S rRNA gene sequence under the maximum likelihood criterion [10] and rooted in accordance with the current taxonomy. The branches are scaled in terms of the expected number of substitutions per site. Numbers to the right of bifurcations are support values from 1,000 bootstrap replicates [11] if larger than 60%. Lineages with type strain genome sequencing projects registered in GOLD [12] and unpublished are marked with one asterisk, those listed as published (as well as the target genome) with two asterisks [13–17], and CP002122/3 for Prevotella melaninogenica.