Figure 8.—
Polymorphism patterns produced by one sweep located at position 0 (a) and two interfering sweeps located at positions 0 (locus 1) and 0.5 (locus 2), as modeled under the “simultaneous scenario” (b) and the “migration scenario” (c). At each marker (solid circle), π was estimated on 20 randomly chosen simulated sequences and averaged over 1000 repeats (solid lines); dotted lines indicate the 95% confidence interval.