Figure 3

UPGMA tree constructed from the concatenated nucleotide (A) and peptide (B) sequences of 130 isolates. Squares next to the tree are colored regarding geographical origin (Asia-red, South America-green, Europe-blue and diverse origin-black). A STs of strains are shown and asterisks (*) mark STs found in more than one isolate originating from the same continent. Boxes mark cluster of isolates with more than 99% similarity. Coloring of boxes indicates the origin of majority of strains, while light grey boxes are indicative of clusters of diverse origins. Smaller dark grey boxes indicate doublets and CCs. Main clusters are indicated by Roman numerals. B pSTs of strains are shown and asterisks (*) mark pSTs representing more than one ST. Boxes mark clusters of pSTs with more than 99.95% similarity. All pSTs except pST79 and pST164 belong to a single CC.