Single Nucleotide Polymorphism Typing of Bacillus anthracis from Sverdlovsk Tissue
Figure. Schematic single nucleotide polymorphism (SNP) tree for Bacillus anthracis. This tree illustrates the relative positions of several sequenced strains of B. anthracis that form the specific sublineages in the A group of B. anthracis and in particular the Western North American lineage (A.BR.WNA, represented by a blue star ). The canonical SNPs and their positions are depicted in red lettering. A branch point (red circle) or node designated A.Br.008/009 originally represented 154 isolates and canSNP analysis places Sverdlovsk 7.RA93.15.15 in this node. The new pagA SNP981 defines a new branch radiating from this node and contains at least 3 other isolates.