The effect of selection on the standardized variance of gene frequency
- 1 January 1976
- journal article
- research article
- Published by Springer Nature in Theoretical and Applied Genetics
- Vol. 48 (6) , 263-268
- https://doi.org/10.1007/bf00264957
Abstract
The effect of directional and heterotic selection on the standardized variance of gene frequency (f=σ q 2 /¯q(1−¯q)) has been examined. It has been found that heterotic selection always results in f values lower than those expected due to drift alone. Additive directional selection can result in low f values, but values larger than those expected due to drift will be observed under additive selection with low initial gene frequency, or when the populations have been separated for a very long period of time in which case f expected due to drift is quite high (around 0.7 or greater). The effect of selection on f is unlikely to be detected if the observed value of f is less than 0.1.Keywords
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