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An analysis of sex in random environments, I

  • W. G. S. Hines (a1) and W. S. Moore (a2)

Abstract

A model of the effects of random variations in environment upon reproductive fitness of sexual and asexual members of a population is analyzed, using individual selection arguments. Conditions are found under which sexuality does result in a net selective advantage, with the conditions per locus becoming markedly less severe as the number of loci considered increases.

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Corresponding author

Postal address: Department of Mathematics and Statistics, University of Guelph, Guelph, Ontario, Canada NIG 2W1. Research supported by NSERC Operating Grant A6187.
∗∗ Postal address: Department of Biological Sciences, College of Liberal Arts, Wayne State University, Detroit, MI 48202, U.S.A.

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Research supported by NSF Operating Grant DEB 7715352.

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References

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Crow, J. F. and Kimura, M. (1965) Evolution in sexual and asexual populations. Amer. Natur. 99, 439450.
Dempster, E. R. (1955) Maintenance of genetic heterogeneity. Cold Spring Harbor Symp. Quant. Biol. 20, 2532.
Hamilton, W. D., Henderson, P. A. and Moran, N. A. (1980) Fluctuation of environment and coevolved antagonist polymorphism as factors in the maintenance of sex. In Natural Selection and Social Behaviour, ed. Alexander, R. D., and Tinkle, D. W., Chiron Press, New York.
Karlin, S. and Levikson, B. (1974) Temporal variation in selection intensities: Case of small populations. Theoret. Popn Biol. 6, 383412.
Karlin, S. and Lieberman, U. (1974) Temporal variation in selection intensities: Case of large populations. Theoret. Popn Biol. 6, 355382.
Levikson, B. and Karlin, S. (1975) Random temporal variation in selection intensities acting on infinite diploid populations: Diffusion method analysis. Theoret. Popn Biol. 8, 292300.
Maynard Smith, J. (1978) The Evolution of Sex. Cambridge University Press, Cambridge.
Moore, W. S. and Hines, W. G. S. (1981) Sex in random environments. J. Theoret. Biol.
Muller, H. (1932) Some genetic aspects of sex. Amer. Natur. 66, 118138.
Williams, G. C. (1975) Sex and Evolution. Princeton University Press, Princeton, N.J.

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An analysis of sex in random environments, I

  • W. G. S. Hines (a1) and W. S. Moore (a2)

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