Table 2.
Parameter values used in two-population model simulations
| Parameter | No Divergence | Isolation | IM |
|---|---|---|---|
| θ a | 10,000 | 7250 | 7250 |
| s | -- | 0.5 | 0.5 |
| η | -- | 1 | 1 |
| T | -- | 0.25/0.025 | 0.25/0.025 |
| m 12 | -- | -- | 1/10 |
| m 21 | -- | -- | 1 |
Values are given for both A (ancient) and B (recent) parameterizations. Parameters are ancestral θ, the proportion of the ancestral population founding population 1 (s), the ratio of current to ancestral size in each population (η), the time of the population split (T), and migration rates into population 1 from population 2 and vice versa (m 12 and m 21).
a:set to produce roughly equal numbers of SNPs across models for a given sample size (A ~ 50,000 SNPs for samples of 100 chromosomes).