TABLE 4

Admixture analysis results of three human admixed populations

GullahCharlestonJamaican
Admixture parametersEstimate95% C.I.Estimate95% C.I.Estimate95% C.I.
τD2.0530.113, 5.8441.8830.003, 6.2421.8680.001, 6.057
τA0.0010.000, 0.8480.1140.000, 0.8200.1960.000, 1.050
θ15.0060.565, 22.9314.1750.034, 18.8603.9720.020, 18.992
θ245.1468.662, 106.28332.2070.152, 143.71334.0830.129, 137.628
θh0.0010.000, ∞0.8480.000, ∞2.1420.000, ∞
θ016.4921.927, 47.61919.9331.728, 49.47621.7870.847, 53.180
p10.0010.000, 0.5460.0640.000, 0.7520.0480.000, 0.870
p1*0.090−0.343, 0.3560.500−0.008, 0.681−0.063−0.490, 0.330
  • The 95% confidence intervals are obtained from 1000 bootstrapping samples. The estimated parameters are θi = 4μNi, τA = μTA, τD = μTD, where Ni is the female effective size of population i (i = 0, 1, 2, h for ancestral, European, African, and admixed populations, respectively). The European contribution to an admixed population was obtained from the new estimator (line headed by p1) and the mY estimator (line headed by p1*). The other seven parameters were estimated by the new estimator only.