Correlation coefficients between estimates of B and levels of polymorphism at noncoding sites (πsil) for different BGS models.

Spearman's rank correlation coefficient (ρ) between estimates of B and πsil (P−12 for all cases). Also shown, ρ between local crossover rates (c; cM/Mb) and πsil (P−12). Results shown based on the analysis of non-overlapping 100-kb autosomal regions.aValues in parenthesis indicate the highest ρ between B and πsil along a single chromosome arm.