Figure 2. MS tree representation of clonal relationships between STs as inferred from goeBurst.

Each ST is represented by a circle sized in proportion to the number of strains represented by that ST. Circles are filled with colors corresponding to the Q ancestry proportion as inferred by the linkage model of Structure. STs with admixture are indicated with an asterisk. Links between STs are colored according to the number of locus variations: SLV (black, thick), DLV (red, thick), TLV (black, dotted), and more than TLV (red, dotted). Clonal complexes are represented by colored shaded areas (defined by stringent grouping criteria; SLV level) and by colored dotted lines (defined by relaxed grouping criteria; DLV level).