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Phylogenetic tree based on Sap amino acid alignment of a subset of the strains in Fig. 3. The maximum-likelihood tree is based on amino acid alignment of the Sap protein sequences from 21 strains belonging to the B. anthracis (Ban), B. cereus (Bce), and B. thuringiensis (Bth) groups obtained using the Phylogeny Fr website (http://www.phylogeny.fr/version2_cgi/index.cgi). The phylogeny was calculated using the PhyML program (58), and the tree was generated by the TreeDyn program (59).
