Whole genome SNP-based evolutionary analysis of M. bovis sequenced strains. (a). Phylogenetic tree with numbers above the branches indicating the number of SNPs identified between the organism and its common ancestor. (b) Distance matrix plot showing the number of SNPs present between selected pairs of strains.
Golby et al. BMC Genomics 2013 14:710 doi:10.1186/1471-2164-14-710