Table 1

Comparison of results from HAPMIX and StepPCO

Population

Estimated percent European ancestry from HAPMIX

Estimated percent European ancestry from StepPCO

Estimated time since admixture (in gens ago) from HAPMIX

Estimated time since admixture (in gens ago) from StepPCO

Mandenka

2%

2%

120

121

Mozabite

77%

84%

100

131

Bedouin

91%

91%

90

83

Palestinian

93%

92%

75

72

Druze

97%

96%

60

90

We have removed one outlier individual from the Mandenka population. Among the Bedouins, 24 out of 45 individuals have a higher proportion of European-related ancestry (Figure S7 in Additional file 1). If these individuals are removed from the analysis, the estimate for the admixture time in the Bedouins changes to 97 generations ago. Estimated percent European ancestry was calculated by using the two parental populations and an admixed group to find the PC1 axis.

Pugach et al. Genome Biology 2011 12:R19   doi:10.1186/gb-2011-12-2-r19