Levelplot of the linearized Slatkin population differentiation (F_ST) values and significant p values.

<p>(A) Levelplot of the linearized Slatkin F_ST values of the European medieval populations. (B) significant p values (< 0.05) are indicated in green. The exact F_ST and p values and population information can be found in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0151206#pone.0151206.s009" target="_blank">S6 Table</a>.</p

PCA and hierarchical clustering of medieval populations.

<p>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 <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0151206#pone.0151206.s010" target="_blank">S7 Table</a>.</p

PCA of the investigated medieval and modern-day populations.

<p>The PCA is based on mtDNA haplogroup frequencies of the medieval population from Slovakia and 33 modern-day populations from Eurasia, and represents PC1 and PC2. For the frequencies and the list of abbreviations see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0151206#pone.0151206.s011" target="_blank">S8 Table</a>.</p

Location of medieval cemeteries from the contact zone of Central Europe.

<p>(1) Čakajovce (Slovakia). (2) Nitra-Šindolka (Slovakia). (3) Lébény (Hungary). (Illustration).</p