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. 2021 Mar 3;38(7):2750–2766. doi: 10.1093/molbev/msab063

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© The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1. — Sampling locations for and genetic differentiation among the individuals investigated. (A) Sampling locations. The symbols represent sampling locations for all 12 species, most collected from two parapatric populations in Austria (Tamsweg district [Austria 1] and Upper Austria [Austria 2]) and Norway (Namsos area [Norway 1] and Trondheim [Norway 2]), as well as from two populations in Germany (supplementary table S1, Supplementary Material online). (B) PCA of all individuals in the space of the first two principal components and (C) in the space of the first and the third principal components. All principal components were statistically significant (P < 0.001, supplementary fig. S1, Supplementary Material online). (D) Individual assignment for each of the 190 individuals to well-defined species for the most-supported model with K = 12 genetic clusters inferred with our ADMIXTURE analysis.