STRUCTURE results: A—estimated likelihoods, ln P(D), of each number of inferred genetic clusters (bars are SD—only given when exceeding the width of dots); B—the corresponding Δ<i>K</i> curves as a function of <i>K</i>; C—ancestry of individuals, estimated for <i>K</i> = 2 and 3 (based on Δ<i>K</i>), and 6 (based on estimated likelihoods).

<p>SEE—south-eastern Europe; CAU—Caucasus; BAL—Baltics; GRE-P—Greece, Peloponnese; GRE-S—Greece, Samos Island.