Figure 4
From: Impact of human population history on distributions of individual-level genetic distance
Ten examples of common ancestry profiles (CAPs) generated under each of four models of population history. Each 'cryptic' comparison set is based on 100 samples randomly selected from 200 possible samples in both populations, as might be realistic in the case of cryptic population structure. CAPs derived from coalescent simulations of two populations of effective size 1,000 that diverged 2,000 generations ago given: (a) complete isolation; (b) continuous gene flow at the rate of 0.5 migrants per generation; (c) continuous gene flow at the rate of 2.0 migrants per generation; and (d) gene flow over the past 100 generations at the rate of 2.0 migrant per generation, following 1,900 generations of isolation. Gene flow is asymmetrical. CAPs derived from simulated data for 500 short tandem repeat loci (mutation rate: 0.0005/locus/generation, range constraint: 15, stepwise mutation model).