Abstract
Two general mechanisms of sex determination have been identified among gonochoristic vertebrates: environmental sex determination where offspring become male or female in response to an environmental factor(s) during development (for example, some fishes and reptiles); and genetic sex determination where sex is determined by genotype at conception (as in birds and mammals)1. How do these sex-determining systems evolve? Direct evidence is virtually non-existent because the sex-determining systems of most species appear to have little genetic variation2–4. Here we provide the first evidence of adaptive variation in environmental and genetic sex determination within a species. We show that in a fish with temperature-dependent sex determination, populations at different latitudes compensate for differences in thermal environment and seasonality by adjusting the response of sex ratio to temperature, and by altering the level of environmental as opposed to genetic control. The adjustments observed are precisely those predicted by adaptive sex ratio theory.
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References
Bull, J. J. Evolution of Sex Determining Mechanisms (Benjamin/Cummings, London, 1983).
Williams, G. C. Proc. R. Soc. B205, 567–580 (1979).
Bull, J. J., Vogt, R. C. & Bulmer, M. G. Evolution 36, 333–341 (1982).
Bull, J. J., Vogt, R. C. & McCoy, C. J. Evolution 36, 326–332 (1982).
Fisher, R. A. The Genetical Theory of Natural Selection (Oxford University Press, 1930).
Kirpichnikov, V. S. Genetic Bases of Fish Selection (Springer, Berlin, 1981).
Mittwoch, U. in Intersexuality in the Animal Kingdom (ed. Reinboth, R.) 438–446 (Springer, Berlin, 1975).
Ohno, S. Sex Chromosomes and Sex-linked Genes (Springer, Berlin, 1967).
Charnov, E. L. & Bull, J. J. Nature 266, 828–830 (1977).
Conover, D. O. & Kynard, B. E. Science 213, 577–579 (1981).
Conover, D. O. & Heins, S. W. Copeia (in the press).
Conover, D. O. Am. Nat. 123, 297–313 (1984).
Johnson, M. S. Copeia 662–691 (1975).
Conover, D. O. & Kynard, B. E. Environ. Biol. Fishes 11, 161–171 (1984).
Middaugh, D. P. Copeia 766–776 (1981).
Jessop, B. M. Can. Ms. Rept. Fish. Aquat. Sci. No. 1694 (Dept. Fisheries & Oceans, Canada, 1983).
Conover, D. O. & Fleischer, M. H. Can. J. Fish. Aquat. Sci. 43, 514–520 (1986).
Walford, L. A. & Wicklund, R. I. Serial Atlas of the Marine Environment, Folio 15(Amersham Geographic Society, New York, 1968).
Colton, J. B. Jr & Stoddard, R.R. Serial Atlas of the Marine Environment, Folio 21 (American Geographic Society, New York, 1972).
Lauzier, L. Bull. Fish. Res. Bd. Can. 111, 251–268 (1957).
Lauzier, L., Trites, R. W. & Hachey, H. B. Bull. Fish. Res. Bd. Can. 111, 195–212 (1957).
Bull, J. J. Heredity 46, 9–26 (1981).
Bulmer, M. G. & Bull, J. J. Evolution 36, 13–26 (1982).
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Conover, D., Heins, S. Adaptive variation in environmental and genetic sex determination in a fish. Nature 326, 496–498 (1987). https://doi.org/10.1038/326496a0
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DOI: https://doi.org/10.1038/326496a0
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