Fig. 1.
Maximum-likelihood phylogenetic tree of S. Typhimurium strains. The tree is based on SNPs determined from the whole genome sequence (excluding prophage regions and phage remnant). Tree was inferred by using a general time-reversible (GTR) model with a gamma distribution. Bootstrap support values, given as a percentage of 1000 replicates, are shown on the branches. SNPs supporting each branch are displayed in red