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Analysis of Hybrid Zones
Hybrid zones are, roughly speaking, narrow regions in which genetically distinct populations meet, mate, and produce hybrids. They are often only a few hundred meters wide and yet may be severalExpand
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The Relative Rates of Evolution of Sex Chromosomes and Autosomes
We develop models of the rates of evolution at sex-linked and autosomal loci and of the rates of fixation of chromosomal rearrangements involving sex chromosomes and autosomes. We show that theExpand
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Fitness Landscapes and the Origin of Species
The origin of species has fascinated both biologists and the general public since the publication of Darwin's Origin of Species in 1859. Significant progress in understanding the process was achievedExpand
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A Quasi-equilibrium theory of the distribution of rare alleles in a subdivided population
The conditional average frequency of rare alleles has been shown in simulations to provide a simple and robust estimator of the number of individuals exchanged between local populations in an islandExpand
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A general model for the evolution of recombination.
  • N. Barton
  • Biology, Medicine
  • Genetical research
  • 1 April 1995
A general representation of multilocus selection is extended to allow recombination to depend on genotype. The equations simplify if modifier alleles have small effects on recombination. TheExpand
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Genetic analysis of hybrid zones
When two distinct gene pools meet and produce fertile hybrids, the outcome varies from gene to gene. At some loci a universally favorable allele has been established on one side. Such alleles soonExpand
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The role of hybridization in evolution
  • N. Barton
  • Biology, Medicine
  • Molecular ecology
  • 1 March 2001
Hybridization may influence evolution in a variety of ways. If hybrids are less fit, the geographical range of ecologically divergent populations may be limited, and prezygotic reproductive isolationExpand
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Evolution of a Species' Range
Gene flow from the center of a species' range can stymie adaptation at the periphery and prevent the range from expanding outward. We study this process using simple models that track both demographyExpand
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Theory and speciation.
The study of speciation has become one of the most active areas of evolutionary biology, and substantial progress has been made in documenting and understanding phenomena ranging from sympatricExpand
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The dynamics of hybrid zones
SummaryThis paper investigates the dynamic behaviour of hybrid zones which are maintained by a balance between dispersal and selection against hybrids. In the first section it is shown that a hybridExpand
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