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Fig. 4

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Discriminant analysis between groups. Dots represent individuals. Groups (numbers and ellipses) are positioned on the plane using their values for two variables. The genetic types were identified on the basis of the q values: q ≥ 0.998 = Mediterranean; 0.005 < q < 0.998 = Introgressed/hybrid; q ≤ 0.005 = Atlantic).
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