Gene flow past a cline
Barton NH. 1979. Gene flow past a cline. Heredity. 43(3), 333–339.
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Abstract
The effect of a cline as a barrier to gene flow at closely linked, weakly selected loci is investigated using a continuous diffusion model. It is shown that a linked cline induces a step in the frequency of a neutral allele, which is proportional to the gradient in neutral allele frequency and to the inverse of the recombination rate. A barrier to dispersal or a local region of low abundance has a similar effect (Nagylaki, 1976). The cline will block the flow of neutral alleles over a region of chromosome roughly 2s/t map units long. However, a slightly advantageous allele will be little affected, and must be very tightly linked to be delayed for long.
Publishing Year
Date Published
1979-12-01
Journal Title
Heredity
Acknowledgement
I would like to thank Dr G. M. Hewitt for stimulating discussions, and for his comments on the manuscript. This work was supported by the Natural Environmental Research Council.
Volume
43
Issue
3
Page
333 - 339
ISSN
eISSN
IST-REx-ID
Cite this
Barton NH. Gene flow past a cline. Heredity. 1979;43(3):333-339. doi:10.1038/hdy.1979.86
Barton, N. H. (1979). Gene flow past a cline. Heredity. Springer Nature. https://doi.org/10.1038/hdy.1979.86
Barton, Nicholas H. “Gene Flow Past a Cline.” Heredity. Springer Nature, 1979. https://doi.org/10.1038/hdy.1979.86.
N. H. Barton, “Gene flow past a cline,” Heredity, vol. 43, no. 3. Springer Nature, pp. 333–339, 1979.
Barton NH. 1979. Gene flow past a cline. Heredity. 43(3), 333–339.
Barton, Nicholas H. “Gene Flow Past a Cline.” Heredity, vol. 43, no. 3, Springer Nature, 1979, pp. 333–39, doi:10.1038/hdy.1979.86.
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