Evol Ecol Res 2: 107-118 (2000)     Full PDF if your library subscribes.

Heterozygous advantage and the evolution of female choice

Andrew J. Irwin* and Peter D. Taylor

Department of Mathematics and Statistics, Queen’s University, Kingston, Ontario K7L 3N6, Canada

Author to whom all correspondence should be addressed.
e-mail: irwin@mast.queensu.ca


The evolution of a gene for female choice of mates with heterozygous advantage at a single locus is discussed. Recent analyses of this problem have been mathematically unclear and misleading. A genetic calculation for a hypothetical one-locus, diallelic species shows that the choice gene is not favoured in a static environment. Computations are presented which show that the choice gene can be favoured in a fluctuating environment where the relative superiority of the homozygotes changes.

Keywords: female choice, fluctuating environment, heterozygote advantage.

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