Figure 3.

The variance of the fraction of admixture, $\mathbb{V}$[H₁,g,δ], as a function of female and male contributions from source population S₁ in the first generation, $s_{1,0}^{\text{f}}$ and $s_{1,0}^{\text{m}}$, in the case of hybrid isolation. (A) g = 1. (B) g = 2. (C) g = 8. At each generation, the variance decreases toward zero by a factor of 2. Considering all $\left(s_{1,0}^{\text{f}},s_{1,0}^{\text{m}}\right)$ in [0, 1] × [0, 1], the maximal variance occurs when $\left(s_{1,0}^{\text{f}},s_{1,0}^{\text{m}}\right)=\left(\frac{1}{2},\frac{1}{2}\right)$, and the minimal variance when $\left(s_{1,0}^{\text{f}},s_{1,0}^{\text{m}}\right)=\left(0,0\right),\left(0,1\right),\left(1,0\right),$ or (1, 1). The variance is calculated using Equation 35.