Fig. 5

Relative proportions of American admixed, sub-Saharan or northern African Y chromosomes belonging to the E-M2 sub-clades. Data from the nomadic populations (Tuareg and Fulbe) and from seven lineages with an absolute frequency equal to 1 were not used for the generation of this graph. Compared to the macroregion sub-division reported in Additional file 1: Table S5, we collapsed “Northeastern Africa” and “Northwestern Africa” macroregions into “Northern Africa”, while the “Sub-Saharan Africa” group includes “Central Sahel”, “Western Africa”, “Central Africa”, “Great Lakes region”, “Horn of Africa”, “Southern Africa” and all the Bantu groups in these regions. In the inset, we report the relative frequencies of the whole E-M2 haplogroup in the same macroregions