FIG 1.
Phylogram of S. Typhimurium isolates based on SNPs determined from the whole-genome sequence. A maximum-likelihood tree showing the phylogenetic relationship of S. Typhimurium DT2 isolates and a collection of diverse strains from various sources. The length of the scale bar is the estimated number of SNPs determined from the rate of substitution per variable site. MLST groups are color-coded as indicated above the tree. All nodes have >80% bootstrap support unless stated. The sequence type (ST) is indicated: ST19 (red), ST128 (green), ST34 (blue), ST313 (yellow), ST568 (cyan), and ST98 (orange).