Barton, Nick HISTA ; Turelli, Michael
A method is developed that describes the effects on an arbitrary number of autosomal loci of selection on haploid and diploid stages, of nonrandom mating between haploid individuals, and of recombination. We provide exact recursions for the dynamics of allele frequencies and linkage disequilibria (nonrandom associations of alleles across loci). When selection is weak relative to recombination, our recursions provide simple approximations for the linkage disequilibria among arbitrary combinations of loci. We show how previous models of sex-independent natural selection on diploids, assortative mating between haploids, and sexual selection on haploids can be analyzed in this framework. Using our weak-selection approximations, we derive new results concerning the coevolution of male traits and female preferences under natural and sexual selection. In particular, we provide general expressions for the intensity of linkage-disequilibrium induced selection experienced by loci that contribute to female preferences for specific male traits. Our general results support the previous observation that these indirect selection forces are so weak that they are unlikely to dominate the evolution of preference-producing loci.
BENGT OLLE BENGTSSON, JERRY COYNE, RICHARD GOMULKIEWICZ, CHUCK LANGLEY, LINDA PARTRIDGE, MONTY SLATKIN, and NEAL TAYLOR gave helpful comments on preliminary versions, which are gratefully acknowledged. We are particularly indebted to DICK HUDSON, MARK KIRKPATRICK and TOM NAGYLAKI for helping to eliminate many obscurities. This work was supported by the Science and Engineering Research Council (GR/C/91529, GR/E/08507), the National Science Foundation (BSR-8866548), the Institute of Theoretical Dynamics and the Center for Population Biology at the University of California, Davis, and by the Swedish Natural Science Research Council.
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Barton NH, Turelli M. Natural and sexual selection on many loci. Genetics. 1991;127(1):229-255. doi:10.1093/genetics/127.1.229
Barton, N. H., & Turelli, M. (1991). Natural and sexual selection on many loci. Genetics. Genetics Society of America. https://doi.org/10.1093/genetics/127.1.229
Barton, Nicholas H, and Michael Turelli. “Natural and Sexual Selection on Many Loci.” Genetics. Genetics Society of America, 1991. https://doi.org/10.1093/genetics/127.1.229.
N. H. Barton and M. Turelli, “Natural and sexual selection on many loci,” Genetics, vol. 127, no. 1. Genetics Society of America, pp. 229–255, 1991.
Barton NH, Turelli M. 1991. Natural and sexual selection on many loci. Genetics. 127(1), 229–255.
Barton, Nicholas H., and Michael Turelli. “Natural and Sexual Selection on Many Loci.” Genetics, vol. 127, no. 1, Genetics Society of America, 1991, pp. 229–55, doi:10.1093/genetics/127.1.229.
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