ABOUT THIS IMAGE. This image shows the variance of the level of admixture from a source group among individuals in an admixed population, in the temporal limit.

In each of the four panels, the x-axis gives the fraction of females entering the admixed population from the source in each generation, and the y-axis gives the corresponding fraction of males. The shading represents the variance — greatest when the male and female contributions are equal. The four panels represent different scenarios for the level of contribution of the admixed population to itself in each generation (upper left: no contribution of the admixed population to itself; upper right: 25% of female ancestry is from the admixed population; lower left: 25% of male ancestry is from the admixed population; lower right: 25% of female ancestry and 25% of male ancestry are from the admixed population). The figure is based on the work of Goldberg, Verdu & Rosenberg (Autosomal admixture levels are informative about sex bias in admixed populations; Genetics 198: 1209-1229, 2014).

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