Figure 1.

Spatial distribution of haplogroup M1 and U6, with languages’ phyla. Frequency maps were obtained using Surfer 8 (Golden Software, Inc.). The Kriging procedure was used and the dataset was congregated with existing ones [29] and updated with the present study, as well as the data in [27,28]. Figure  1a: frequency map for haplogroup M1. Figure  1b: frequency map for haplogroup U6. Red dots indicate the populations geographic locations.

Pennarun et al. BMC Evolutionary Biology 2012 12:234   doi:10.1186/1471-2148-12-234
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