Abstract
The genetic structure of a metapopulation of the weedy plant, Silene alba, was quantified by calculating FST, Wright's measure of the among-deme component of genetic variance, for seven polymorphic allozyme loci and a chloroplast DNA (cpDNA) polymorphism. Specifically, FST was estimated separately for 12 recently founded demes and 11 demes that had been established in the same area for at least six years, in order to assess the influence of founding events on genetic structure. The FST value for the recently established populations was the larger of the two estimates for six of the seven allozyme polymorphisms and for the cpDNA polymorphism, showing that the metapopulation dynamics of extinction and colonization enhance genetic structure. Combined with an estimate of k, the size of colonizing groups, the FST values were also used to estimate φ, the probability that two alleles found in a colonizing group originated in the same source population. Information from allozymes and cpDNA resulted in estimates of φ of 0.73 and 0.89, respectively, suggesting that relatively little mixing of individuals from diverse source populations occurs during colonization.
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Antonovics, J, Thrall, P, Jarosz, A, and Stratton, D. 1994. Ecological genetics of metapopulations: the Silene-Ustilago plant-pathogen system. In: Real, L. (ed.) Ecological Genetics, pp. 146–170. Princeton University Press, Princeton, NJ.
Doyle, J J, and Doyle, J L. 1987. A rapid DNA isolation procedure for small amounts of fresh leaf tissue. Phytochem Bull, 19, 11–15.
Dybdahl, M F. 1994. Extinction, recolonization, and the genetic structure of tidepool copepod populations. Evol Ecol, 8, 113–124.
Gilpin, M E. 1991. The genetic effective size of a metapopulation. Biol J Linn Soc, 42, 165–175.
Hamrick, J L, and Godt, M J. 1990. Allozyme diversity in plant species. In: Brown, A. H. D. Clegg, M. T. Kahler, A. L. and Weir, B. S. (eds) Plant Population Genetics, Breeding, and Genetic Resources, pp. 43–63. Sinauer Associates, Sunderland, MA.
Hanski, I, and Gilpin, M. 1991. Metapopulation dynamics: brief history and conceptual domain. Biol J Linn Soc, 42, 73–88.
Karl, S A, and Avise, J C. 1992. Balancing selection at allozyme loci in oysters: implications from nuclear RFLPS. Science, 256, 100–102.
Levins, R. 1970. Extinction. In: Gerstenhaber M. (ed), Some Mathematical Problems in Biology, pp. 77–107. American Mathematical Society, Providence, RI.
Maruyama, T, and Kimura, M. 1980. Genetic variability and the effective size when local extinction and recolonization are frequent. Proc Natl Acad Sci USA, 77, 6710–6714.
McCauley, D E. 1989. Extinction, colonization, and population structure: a study of a milkweed beetle. Am Nat, 134, 365–376.
McCauley, D E. 1991. Genetic consequences of local population extinction and recolonization. Trends Ecol Evol, 6, 5–8.
McCauley, D E. 1993. Evolution in metapopulations with frequent local extinction and recolonization. Oxford Surveys in Evolutionary Biology, 9, 109–134.
McCauley, D E. 1994. Contrasting the distribution of chloroplast DNA and allozyme polymorphism among local populations of Silene alba: Implications for studies of gene flow in plants. Proc Natl Acad Sci USA, 91, 8127–8131.
McCauley, D E. 1995. The use of chloroplast DNA polymorphism in studies of gene flow in plants. Trends Ecol. Evol, 10, 198–202.
Peroni, P A, and Armstrong, R T. 1994. Demography and ecological genetics of the seed bank in a population of white campion (Silene αlba-Caryophyllaceae). Am J Bot, 81 (supplement), 61.
Slatkin, M. 1977. Gene flow and genetic drift in a species subject to frequent local extinctions. Theor Pop Biol, 12, 253–262.
Slatkin, M. 1985. Gene flow in natural populations. Ann Rev Ecol Syst, 16, 393–430.
Slatkin, M. 1987. Gene flow and the geographic structure of natural populations. Science, 236, 787–792.
Sokal, R R, and Rohlf, F J. 1981. Biometry, 2nd edn. Freeman, San Francisco, CA.
Taberlet, P, Gielly, L, Pautou, G, and Bouvet, J. 1991. Plant Mol Biol, 17, 1105–1109.
Thrall, P, and Antonovics, J. 1995. Theoretical and empirical studies of metapopulations: Population and genetic dynamics of the Silene-Ustilago system. Can J Bot (in press).
Wade, M J. 1982. The effect of multiple inseminations on the evolution of social behaviors in diploid and haplo-diploid organisms. J Theor Biol, 95, 351–368.
Wade, M J, and McCauley, D E. 1988. Extinction and recolonization: their effects on the genetic differentiation of local populations. Evolution, 42, 995–1005.
Weir, B S. 1990. Genetic Data Analysis. Sinauer Associates, Sunderland, MA.
Whitlock, M C. 1992. Nonequilibrium population structure in forked fungus beetles: extinction, colonization, and the genetic variance among populations. Am Nat, 139, 952–970.
Whitlock, M C, and McCauley, D E. 1990. Some population genetic consequences of colony formation and extinction: genetic correlations within founding groups. Evolution, 44, 1717–1724.
Wright, S. 1978. Evolution and the Genetics of Populations, 4, Variability Within and Among Natural Populations. University of Chicago Press, Chicago.
Acknowledgements
The authors wish to thank M. Whitlock, M. Wade, P. Thrall and C. Richards for their advice on various aspects of this project. Logistical support was provided by the Mountain Lake Biological Station. Financial support was provided by National Science Foundation Award DEB-9221175.
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McCauley, D., Raveill, J. & Antonovics, J. Local founding events as determinants of genetic structure in a plant metapopulation. Heredity 75, 630–636 (1995). https://doi.org/10.1038/hdy.1995.182
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DOI: https://doi.org/10.1038/hdy.1995.182
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