Directional selection and the evolution of sex and recombination.

  title={Directional selection and the evolution of sex and recombination.},
  author={Brian Charlesworth},
  journal={Genetical research},
  volume={61 3},
Models of the evolutionary advantages of sex and genetic recombination due to directional selection on a quantitative trait are analysed. The models assume that the trait is controlled by many additive genes. A nor-optimal selection function is used, in which the optimum either moves steadily in one direction, follows an autocorrelated linear Markov process or a random walk, or varies cyclically. The consequences for population mean fitness of a reduction in genetic variance, due to a shift… CONTINUE READING
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