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. 2016 Mar 10;11(3):e0151206. doi: 10.1371/journal.pone.0151206

Fig 3. PCA and hierarchical clustering of medieval populations.

Fig 3

PCA (A) and hierarchical clustering (B) based on mtDNA haplogroup frequencies of 12 medieval populations show a clustering of medieval populations from Slovakia (SVK-medieval), Lombards from Hungary (HUN-Lombards) and a medieval population from Poland (POL-medieval). The medieval populations and the Vikings of North Europe are clustered together, as are the medieval populations from South Europe. The index of abbreviations is in S7 Table.