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Bayesian tree of representative 24 strains
The colored circles on the map indicate geographic regions of Japan and correspond to the colored circles on the H. pylori strains. Bacterial populations determined by STRUCTURE are shown by red letters. Calibration point C-1 was set at the divergence of non-African strains as lower 50 kya and upper 100 kya according to archaeological information (Bae et al., 2017; Sikora et al., 2017).
