Human polymorphism around recombination hotspots

Meiotic recombination in humans is thought to occur as part of the resolution of DSBs (double-strand breaks). The repair of DSBs potentially leads to biases in DNA repair that can distort the population frequency of the alleles at single-nucleotide polymorphisms. Genome-wide variation data provide evidence for a weak fixation bias in favour of G and C alleles that is strongest at the Centre of inferred recombination hotspots.