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Sexual selection, additive genetic variance and the “phenotypic handicap”

✍ Scribed by Wallace J. Dominey

Book ID
107824575
Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
533 KB
Volume
101
Category
Article
ISSN
0022-5193

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📜 SIMILAR VOLUMES

Sexual selection and the handicap princi
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✍ John Maynard Smith 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 174 KB

The theory that sexual selection may cause females to select males with a handicap is analysed by means of a simple model. It is concluded that the proposed mechanism does not produce the results claimed for it, even allowing for sex-limited inheritance of the handicap.

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The genetic variance of a quantitative trait decreases under directional selection due to generation of linkage disequilibrium. After a few cycles of selection on individual phenotype, a limit is reached where there is no further reduction in the genetic variance. Bulmer's model is extended to an an