Figure 2 | Scientific Reports

Figure 2

From: Yersinia pestis strains from Latvia show depletion of the pla virulence gene at the end of the second plague pandemic

Figure 2

Maximum-likelihood tree. The tree is based on the SNP alignment (15,976 positions) of 228 modern Y. pestis genomes, 36 published ancient Y. pestis strains, one Y. pseudotuberculosis genome, and the two genomes G488 and G701 from St. Gertrude’s Church cemetery (left panel, blue). Country abbreviation is given in brackets (DE = Germany, ES = Spain, FR = France, GB = Great Britain, US = United States, RU = Russia, LV = Latvia, CN = China, CG = Congo, FSU = Former Soviet Union, IN = India, IR = Iran, MG = Madagascar, MM = Myanmar, MN = Mongolia, NP = Nepal, UG = Uganda, KG = Kyrgyzstan, CH = Switzerland). Bootstrap values are shown on the nodes for 500 replicates. An asterisk (*) indicates a bootstrap support above 94. Strains in red exhibit no signs of the pla-negative plasmid. Strains in blue exhibit clear signs of the pla-negative plasmid. For the strains in black (within the Back Death and post-Black Death subclades), the pla status was inconclusive or could not be determined due to a general lack of coverage.

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