Figure 2
From: Separating the post-Glacial coancestry of European and Asian Y chromosomes within haplogroup R1a
Geographic distribution of haplogroup R1a1a7-M458 frequency. The spatial frequency map was obtained applying the frequencies from Supplementary Table S2 (dots on the map indicate the approximate locations of the sampled populations) to the Surfer software (version 7, Golden Software Inc., Golden, CO, USA) following the Inverse Distance to Power (Power 3.75; smoothness 0) procedure with added break lines indicated by dashed blue lines in the seas. Spatial distribution of the expansion times of the regional M458 derived Y-chromosomes is shown in the lower left inset map according to data in Supplementary Table S4. See text for discussion concerning the spread of M458 lineages with the major European river basins (shown in blue) and major Neolithic and Metal Age cultures.
