The infinite island model with sex-differentiated gene flow

被引：27
作者：
Berg L.M. [1 ]
Lascoux M. [2 ,3 ]
Pamilo P. [1 ]
机构：
[1] Department of Genetics, Box 7003, Uppsala University
[2] Department of Forest Genetics, Box 7027, Swed. Univ. of Agricultural Sciences
[3] Department of Genetics, Uppsala University
来源：
Heredity | 1998年 / 81卷 / 1期
关键词：
Genetic differentiation; Haplodiploidy; Identity measures; Island model; Sex-biased migration;
D O I：
10.1046/j.1365-2540.1998.00358.x
中图分类号：
学科分类号：
摘要：
Identity measures are derived for the infinite island model with separate sexes and sex-differentiated contribution to gene flow. The concept of effective migration rate, m(e), is introduced, which describes the genetically effective flow when sexes migrate at different rates, when females migrate as mated or when sexes differ in ploidy, as in the case of X-linked genes or haplodiploidy. The notion of m(e) allows the different cases to be described by the common equation F = 1/(1 + 4N(e)m(e)). When the reproductive sex ratio differs from unity, migration of the rarer sex entails more effective gene flow than migration of the common sex. With female dispersal after mating, as well as with ploidy differences, the effective migration rate departs from the census rate, and migration of diploids and/or mated females normally homogenizes the population more than the migration of haploids and unmated females, as expected. This difference between the effective gene flow and the number of migrants contributes to a possible discordance between direct and indirect estimates of dispersal. At the same time, the expected difference in genetic differentiation between autosomal and X-linked loci opens the possibility for revelation of sex-differentiated migration, which may help resolve such instances.
引用
收藏
页码：63 / 68
页数：5
相关论文
共 19 条
  • [1] Avise, J.C., (1994) Molecular Markers, Natural History and Evolution, , Chapman & Hall, New York
  • [2] Crow, J.F., Kimura, M., (1970) An Introduction to Population Genetics Theory, , Harper & Row, New York
  • [3] Crozier, R.H., Pamilo, P., (1996) Evolution of Social Insect Colonies, , Oxford University Press, Oxford
  • [4] Ennos, R.A., Estimating the relative rates of pollen and seed migration among plant populations (1994) Heredity, 72, pp. 250-259
  • [5] Felsenstein, J., How can we infer geography and history from gene frequencies? (1982) J. Theor. Biol., 96, pp. 9-20
  • [6] Greenwood, P.J., Mating systems, philopatry and dispersal in birds and mammals (1980) Anim. Behav., 28, pp. 1140-1162
  • [7] Greenwood, P.J., Mating systems and the evolutionary consequences of dispersal (1983) The Ecology of Animal Movement, pp. 116-131. , Swingland, I. R. and Greenwood, P. J. (eds) Clarendon Press, Oxford
  • [8] Laidlaw Jr., H.H., Page Jr., R.E., Mating designs (1988) Bee Genetics and Breeding, pp. 323-344. , Rinderer, T. E. (ed.) Academic Press, New York
  • [9] Maruyama, K., Tachida, H., Genetic variability and geographical structure in partially selfing populations (1992) Jap. J. Genet., 67, pp. 39-51
  • [10] Oster, G.F., Eshel, I., Cohen, D., Worker-queen conflict and the evolution of social castes (1977) Theor. Pop. Biol., 12, pp. 49-85
12