Fig. 3.

Best supported models for the evolution of newly discovered H. pylori subpopulations hspSiberia1 (A) and hspSiberia2 (B) and hspKet (C) using ABC. (A–C, Top) Sampled locations containing either source or admixed populations, the proposed migration routes of both source populations (thick arrows), and the recent colonization routes once admixture occurred (thin arrows). The transparent pie slices therefore correspond to populations that were not involved in the depicted scenario. hspSiberia1 originated through admixture between hpAsia2 and hpNorthAsia, hspSiberia2 derived via admixture between hpAsia2 and hpEastAsia, and hspKet evolved though admixture between hpNorthAsia and hspSiberia2. The median posterior estimates for admixture times (Tadm) are given for each analysis.