Comparing strengths of directional selection: how strong is strong?

  title={Comparing strengths of directional selection: how strong is strong?},
  author={Joe Hereford and Thomas Folkmann Hansen and David Houle},
  journal={Evolution; international journal of organic evolution},
  volume={58 10},
The fundamental equation in evolutionary quantitative genetics, the Lande equation, describes the response to directional selection as a product of the additive genetic variance and the selection gradient of trait value on relative fitness. Comparisons of both genetic variances and selection gradients across traits or populations require standardization, as both are scale dependent. The Lande equation can be standardized in two ways. Standardizing by the variance of the selected trait yields… CONTINUE READING
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