Figure 5

Most parsimonious acquisition and loss of selected genomic elements and predicted biological processes, superimposed on a maximum clade credibility phylogeny of 16 Lineage IV S. Typhimurium isolates from New York State. A gain or loss of a genomic element or biological process is indicated by a purple box with green or red text, respectively, with gene names and plasmid replicons in boldfaced text. An allele change is indicated by a box with blue text. Strains were isolated from bovine, farm environmental, or human clinical sources (blue, green, and magenta tip labels, respectively) from 1999 to 2011. The time scale in years is plotted along the x-axis of the phylogeny. Branch labels correspond to posterior probabilities.