Genetic hitchhiking in spatially extended populations.

@article{Barton2013GeneticHI,
  title={Genetic hitchhiking in spatially extended populations.},
  author={N H Barton and Alison M. Etheridge and J Kelleher and Amandine V{\'e}ber},
  journal={Theoretical population biology},
  year={2013},
  volume={87},
  pages={75-89}
}
When a mutation with selective advantage s spreads through a panmictic population, it may cause two lineages at a linked locus to coalesce; the probability of coalescence is exp(-2rT), where T∼log(2Ns)/s is the time to fixation, N is the number of haploid individuals, and r is the recombination rate. Population structure delays fixation, and so weakens the effect of a selective sweep. However, favourable alleles spread through a spatially continuous population behind a narrow wavefront… CONTINUE READING

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