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. 2013 Oct 11;8(10):e76454. doi: 10.1371/journal.pone.0076454

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© 2013 Stronen et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Principal component analysis of Italian wolves (n = 50) using 67K single nucleotide polymorphism (SNP) markers. Red = Northern Apennines (n = 14), blue = Central Apennines (n = 21), green = Southern Apennines (n = 14), black = a single sample from the Alps.