Fig. 3.

Heatmap of the pairwise F-Statistics F_ST across all cantons. Larger values indicate a higher degree of genetic variation within the comparison. The row dendrogram shows two main clusters with comparisons for Geneva and Lugano and a third broader cluster comprised of comparisons made to Geneva, Aarau, Chur, and Sion. The main differences are driven by Au^a/b antigens, member of the Lutheran, and the Vil+/-, Kn^a/b and McC^a/b antigens of the Knops blood group system.