The twelve canSNP subgroups and sub-lineages of B. anthracis. Determined by the analysis of 14 canSNP sites described by Van Ert et al. The five canSNP groups represented in China are indicated in larger and bold fonts in this Neighbor Joining Tree. The number of isolates (N), genotypes (G), and Nei's Diversity Index  within groups (D) are illustrated in the table in the lower left. Neighbor-joining trees based upon additional MLVA genotypes within each of these 5 canSNP groups are illustrated in Figures 3 and 5.
Simonson et al. BMC Microbiology 2009 9:71 doi:10.1186/1471-2180-9-71