As part of a programme to determine the importance of the loss of genetic variation for the probability of population extinction, the amount of allozyme variation was determined in 14 populations of Salvia pratensis and in 12 populations of Scabiosa columbaria. Significant correlations were found between population size and the proportion of polymorphic loci (Salvia: r=0.619; Scabiosa: r=0.713) and between population size and mean observed number of alleles per locus (Salvia: r=0.540; Scabiosa: r=0.819). Genetic differentiation was substantially larger among small populations than among large populations: in Salvia GST was 0.181 and 0.115, respectively, and in Scabiosa 0.236 and 0.101, respectively. The results are discussed in relation to genetic drift, inbreeding and restricted gene flow.
Allendorf, F W. 1983. Isolation, gene flow, and genetic differentiation among populations. In: Schonewald-Cox, C. S., Chambers, S. M., MacBryde, B. and Thomas, L. (eds), Genetics and Conservation: a Reference for Managing Wild Animal and Plant Populations, Benjamin-Cummings, London, pp. 51–65.
Brakefield, P M. 1989. The variance in genetic diversity among subpopulations is more sensitive to founder effects and bottlenecks than is the mean: a case study. In: Fontdevila, A. (ed.), Evolutionary Biology of Transient Unstable Populations, Springer-Verlag, Berlin, pp. 145–161.
Frankel, O H. 1983. The place of management in conservation. In: Schonewald-Cox, C. S., Chambers, S. M., MacBryde, B. and Thomas, L. (eds), Genetics and Conservation: a Reference for Managing Wild Animal and Plant Populations, Benjamin-Cummings, London, pp. 1–14.
Frankel, O H, and Soulé, M E. 1981. Conservation and Evolution, Cambridge University Press, Cambridge.
Frankel, R. 1983. Heterosis. Reappraisal of Theory and Practice, Springer-Verlag, Berlin.
Franklin, I R. 1980. Evolutionary change in small populations. In: Soulé, M. E. and Wilcox, B. A. (eds), Conservation Biology: an Evolutionary-Ecological Perspective, Sinauer, Sunderland, pp. 135–149.
Hamrick, J L, Linhart, Y B, and Mitton, J B. 1979. Relationships between life-history characteristics and electro-phoretically detectable genetic variation in plants. Ann Rev Ecol Syst, 10, 173–200.
Hofman, A. 1988. Starch gel electrophoresis: a tool for studying the phylogenetic systematics and population genetics of mosses. In: Glime, J. M. (ed.), Methods in bryology Proc Bryol Meth Workshop, Mainz, Hattori Bot. Lab., Nichinan, pp. 353–358.
Karron, J D. 1987. A comparison of levels of genetic polymorphism and self-compatibility in geographically restricted and widespread plant congeners. Evol Ecol, 1, 47–58.
Levin, D A, and Kerster, H W. 1974. Gene flow in seed plants. Evol Biol, 7, 139–220.
Levin, D A, Ritter, K, and Ellstrand, N C. 1979. Protein polymorphism in the narrow endemic Oenothera organensis. Evolution, 33, 534–542.
Lewontin, R C, and Krakauer, J. 1973. Distribution of gene frequency as a test of the theory of the selective neutrality of polymorphisms. Genetics, 74, 175–195.
Loveless, M D, and Hamrick, J L. 1984. Ecological determinants of genetic structure in plant populations. Ann Rev Ecol Syst, 15, 65–95.
Mennema, J, Quené-Boterenbrood, A J, and Plate, C L. 1985. Atlas van de Nederlandse flora Zeldzame en vrij zeldzame planten. Bohn, Scheltema en Holkema, Utrecht.
Moran, G F, and Hopper, S D. 1983. Genetic diversity and the insular population structure of the rare granite rock species, Eucalyptus caesia benth. Aust J Bot, 31, 161–172.
Nei, M. 1987. Molecular Evolutionary Genetics, Columbia University Press, New York.
Ouborg, N J, Van Treuren, R, Haeck, J, and Reinink, K. 1989. Jaarverslag 1988. Institute for Ecological Research, Heteren.
Rich, S S, Bell, A E, and Wilson, S P. 1979. Genetic drift in small populations of Tribolium. Evolution, 33, 579–584.
Schaal, B A. 1975. Population structure and local differentiation in Liatris cylindracea. Am Nat, 109, 511–528.
Schaal, B A, and Smith, W G. 1980. The apportionment of genetic variation within and among populations of Desmodium nudiflorum. Evolution, 34, 214–221.
Schmidtke, J, and Engel, W. 1980. Gene diversity in tunicate populations. Biochem Genet, 18, 503–508.
Schonewald-Cox, C S, Chambers, S M, MacBryde, B, and Thomas, L. 1983. Genetics and Conservation: a Reference for Managing Wild Animal and Plant Populations, Benjamin-Cummings, London.
Schwaegerle, K E, and Schaal, B A. 1979. Genetic variability and founder effect in the pitcher plant Sarracenia purpurea L. Evolution, 33, 1210–1218.
Slatkin, M, and Barton, N H. 1989. A comparison of three indirect methods for estimating average levels of gene flow. Evolution, 43, 1349–1368.
Sokal, R R, and Rohlf, F J. 1981. Biometry (2nd edn), W. H. Freeman and Company, San Francisco.
Soulé, M E. 1986. Conservation Biology: The Science of Scarcity and Diversity, Sinauer, Sunderland.
Soulé, M E. 1987. Viable Populations for Conservation, Cambridge University Press, Cambridge.
Soulé, M E, and Wilcox, B A. 1980. Conservation Biology: an Evolutionary-Ecological Perspective, Sinauer, Sunderland.
Templeton, A R. 1986. Coadaptation and outbreeding depression. In: Soulé, M. E. (ed.), Conservation Biology: The Science of Scarcity and Diversity, Sinauer, Sunderland, pp. 105–116.
Tutin, T G, Heywood, V H, Burges, N A. et al. 1972. Flora Europaea (Part 3), Cambridge University Press, Cambridge.
Tutin, T G, Heywood, V H, Burges, N A. et al. 1976. Flora Europaea (Part 4), Cambridge University Press, Cambridge.
Wright, S. 1931. Evolution in Mendelian populations. Genetics, 16, 97–159.
Varvto, S L, Chakraborty, R, and Nei, M. 1986. Genetic variation in subdivided populations and conservation genetics. Heredity, 57, 189–198.
Varvio-Aho, S L. 1981. The effects of ecological differences on the amount of enzyme gene variation in Finnish water-strider (Gems) species. Hereditas, 94, 35–39.
Varvio-Aho, S L. 1983. Genetic variation in relation to dispersal efficiency. In: Oxford, G. S. and Rollinson, D. (eds), Protein Polymorphism: Adaptive and Taxonomic Significance, Academic Press, London, pp. 325–339.
Vrijenhoek, R C. 1985. Animal population genetics and disturbance: the effects of local extinctions and recolonizations on heterozygosity and fitness. In: Pickett, S. T. A. and White, P. S. (eds), The Ecology of Natural Disturbance and Patch Dynamics, Academic Press, London, pp. 265–285.
Workman, P L, and Niswander, J D. 1970. Population studies on Southwestern Indian tribes. II. Local genetic differentiation in the Papago. Am J Hum Genet, 22, 24–49.
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Cite this article
van Treuren, R., Bijlsma, R., van Delden, W. et al. The significance of genetic erosion in the process of extinction. I. Genetic differentiation in Salvia pratensis and Scabiosa columbaria in relation to population size. Heredity 66, 181–189 (1991). https://doi.org/10.1038/hdy.1991.23
- conservation biology
- genetic erosion
- population size
- Salvia pratensis
- Scabiosa columbaria
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