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. 2013 Dec 11;6(1):36–52. doi: 10.1093/gbe/evt204

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© The Author(s) 2013. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1.— — Phylogenetic relationship between toxigenic and nontoxigenic Clostridium difficile isolates. Maximum likelihood tree generated from the genomes of 72 representative isolates, plus CD630 (Sebaihia et al. 2006). Clades are indicated by their designated number. Nontoxigenic isolates are indicated by black branches. Toxigenic isolates are indicated by branches colored according to clade. The ST and PCR-ribotype (in brackets) of a well characterized representative of each clade is indicated.