Ancient mtDNA diversity reveals specific population development of wild horses in Switzerland after the Last Glacial Maximum
Fig 5
PCA graph based on relative haplogroup frequencies.
Asia (black), Ural region (red) and Swiss/Swabian (blue) samples divided in time bins: square = before the LGM, diamond = LGM, circle = after the LGM. Sample numbers are given in parenthesis. The first two components explain 84% of the variation (see S4 Fig for loadings).