The barrier to genetic exchange between hybridising populations

@article{Barton1986TheBT,
  title={The barrier to genetic exchange between hybridising populations},
  author={N. Barton and B. Bengtsson},
  journal={Heredity},
  year={1986},
  volume={57},
  pages={357-376}
}
  • N. Barton, B. Bengtsson
  • Published 1986
  • Biology, Medicine
  • Heredity
  • Suppose that selection acts at one or more loci to maintain genetic differences between hybridising populations. Then, the flow of alleles at a neutral marker locus which is linked to these selected loci will be impeded. We define and calculate measures of the barrier to gene flow between two distinct demes, and across a continuous habitat. In both cases, we find that in order for gene flow to be significantly reduced over much of the genome, hybrids must be substantially less fit, and the… CONTINUE READING
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    References

    SHOWING 1-10 OF 35 REFERENCES
    Gene flow and selection in a two-locus system.
    • 171
    The effect on neutral gene flow of selection at a linked locus.
    • D. Petry
    • Biology, Medicine
    • Theoretical population biology
    • 1983
    • 54
    Gene flow past a cline
    • 306
    • Highly Influential
    • PDF
    The effects of linkage and density-dependent regulation on gene flow
    • 102
    • PDF
    Genetic Revolutions, Founder Effects, and Speciation
    • 612
    Models of speciation by sexual selection on polygenic traits.
    • R. Lande
    • Biology, Medicine
    • Proceedings of the National Academy of Sciences of the United States of America
    • 1981
    • 2,040
    • PDF
    Stable linkage disequilibrium without epistasis in subdivided populations.
    • W. Li, M. Nei
    • Biology, Medicine
    • Theoretical population biology
    • 1974
    • 93
    Analysis of Hybrid Zones
    • 2,498
    Polymorphisms for genetic and ecological systems with weak coupling.
    • 158