Fig. 2.—

Cluster diagram of individual assignment of each isolate to the nine clusters inferred using Admixture (Alexander et al. 2009). Bars represent individuals and colors indicate each genetic cluster inferred with greater than 0.95 support. The height of each bar on the left indicates the probability with which each isolate was assigned to each cluster. Isolates are arranged by (A) subspecies, (B) date of isolation, (C) host species, and (D) country of isolation. Details for each strain are listed in supplementary appendix S1, Supplementary Material online.