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Fig. 5 | BMC Evolutionary Biology

Fig. 5

From: Postglacial recolonizations, watershed crossings and human translocations shape the distribution of chub lineages around the Swiss Alps

Fig. 5

Positions of individual fish relative to the first and second principal component axes derived from the correlation matrix of traditional morphometric traits. Individuals are color-coded by drainage: green = Rhone, black = Rhine, blue = Danube (European chub, Squalius cephalus) and red = Po (Italian chub, S. squalus). Italian chub possessing the mitochondrial haplotype E are indicated by red triangles

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