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. Author manuscript; available in PMC: 2014 Aug 16.
Published in final edited form as: Mol Ecol. 2013 Oct 7;22(24):6018–6032. doi: 10.1111/mec.12516

Fig. 3. Two-dimensional unfolded site frequency spectrum (2D-SFS) for SNPs between historic (x axis) and modern (y axis) Tamias alpinus specimens.

Fig. 3

The color of each data point represents the number of SNPs belonging to the particular category in the 2D-SFS, which is depicted in the color key inset.