Fig. 3From: Genetic relationships between sympatric and allopatric Coregonus ciscoes in North and Central EuropeBiplots of Principal Coordinate Analysis. Biplots of the dimension reduction by principal component analysis (PCoA) of 655 Coregonus individuals (dots) and inertia ellipses from 18 populations, with A PCoA-axes 1 and 2, and B PCoA-axes 3 and 4 displayed. The colors of dots and population names follow the coloring in Figs. 1 and 2Back to article page