Table 1.

Mixture Parameters for Europeans.

AdmixedPop	No. of Replicatesa	αb	Branch1Loc (Anc. N. Eurasian)c	Branch2Loc (Anc. W. Eurasian)c	MixedDriftd
Adygei	500	0.254–0.461	0.033–0.078/0.195	0.140–0.174/0.231	0.077–0.092
Basque	464	0.160–0.385	0.053–0.143/0.196	0.149–0.180/0.231	0.105–0.121
French	491	0.184–0.386	0.054–0.130/0.195	0.149–0.177/0.231	0.089–0.104
Italian	497	0.210–0.415	0.043–0.108/0.195	0.137–0.173/0.231	0.092–0.109
Orcadian	442	0.156–0.350	0.068–0.164/0.195	0.161–0.185/0.231	0.096–0.113
Russian	500	0.278–0.486	0.045–0.091/0.195	0.146–0.181/0.231	0.079–0.095
Sardinian	480	0.150–0.350	0.045–0.121/0.195	0.146–0.176/0.231	0.107–0.123
Tuscan	489	0.179–0.431	0.039–0.118/0.195	0.137–0.177/0.231	0.088–0.110

^aNumber of bootstrap replicates (out of 500) placing the mixture between the two branches shown.

^bProportion of ancestry from “ancient northern Eurasian” (95% bootstrap confidence interval).

^cSee figure 5A for the definition of the “ancient northern Eurasian” and “ancient western Eurasian” branches in the scaffold tree; Branch1Loc and Branch2Loc are the points at which the mixing populations split from these branches (expressed as confidence interval for split point/branch total, as in figure 2A).

^dSum of drift lengths ; see figure 2A.