Figure 3.

Radial tree showing inferred phylogenetic relationships of B. anthracis strains from this study. The 37 variable positions identified in this study were concatenated together to create artificial sequence types. Groups of strains with identical sequence types were A0488 and ASC006; A0039, ASC025, ASC031, ASC070, ASC074 and ASC394; ASC074 and ASC054; A0328, ASC061 and ASC073; A0034, ASC159, ASC165 and ASC398. A DNA distance matrix was created using DNADIST, plotted as a UPGMA tree using NEIGHBOR and the tree plotted using DRAWGRAM [56]. The B1 strain A0465 was used as an outgroup.