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ACCUMULATING POSTZYGOTIC ISOLATION GENES IN PARAPATRY: A NEW TWIST ON CHROMOSOMAL SPECIATION

Chromosomal rearrangements can promote reproductive isolation by reducing recombination along a large section of the genome. We model the effects of the genetic barrier to gene flow caused by a chromosomal rearrangement on the rate of accumulation of postzygotic isolation genes in parapatry. We find... Full description

Journal Title: Evolution 2003-03, Vol.57 (3), p.447-459
Main Author: Navarro, Arcadi
Other Authors: Barton, Nick H.
Format: Electronic Article Electronic Article
Language: English
Subjects:
Publisher: Oxford, UK: Blackwell Publishing Ltd
ID: ISSN: 0014-3820
Link: https://www.ncbi.nlm.nih.gov/pubmed/12703935
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title: ACCUMULATING POSTZYGOTIC ISOLATION GENES IN PARAPATRY: A NEW TWIST ON CHROMOSOMAL SPECIATION
format: Article
creator:
  • Navarro, Arcadi
  • Barton, Nick H.
subjects:
  • Alleles
  • Analysis
  • Animals
  • Biological Evolution
  • Chromosomal changes
  • Chromosomes
  • Chromosomes - genetics
  • divergence
  • Drosophila
  • Evolution
  • Evolutionary genetics
  • Female
  • Genes
  • Genetic aspects
  • Genetic diversity
  • Genetic loci
  • Genetic research
  • Genetic Variation
  • Genome
  • Genomes
  • Genomics
  • Models, Genetic
  • Mutation
  • parapatry
  • Physiological aspects
  • Population genetics
  • postzygotic isolation
  • Recombination, Genetic
  • Reproduction
  • Speciation
  • Zygote - physiology
  • Zygotes
ispartof: Evolution, 2003-03, Vol.57 (3), p.447-459
description: Chromosomal rearrangements can promote reproductive isolation by reducing recombination along a large section of the genome. We model the effects of the genetic barrier to gene flow caused by a chromosomal rearrangement on the rate of accumulation of postzygotic isolation genes in parapatry. We find that, if reproductive isolation is produced by the accumulation in parapatry of sets of alleles compatible within but incompatible across species, chromosomal rearrangements are far more likely to favor it than classical genetic barriers without chromosomal changes. New evidence of the role of chromosomal rearrangements in parapatric speciation suggests that postzygotic isolation is often due to the accumulation of such incompatibilities. The model makes testable qualitative predictions about the genetic signature of speciation.
language: eng
source:
identifier: ISSN: 0014-3820
fulltext: no_fulltext
issn:
  • 0014-3820
  • 1558-5646
url: Link


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titleACCUMULATING POSTZYGOTIC ISOLATION GENES IN PARAPATRY: A NEW TWIST ON CHROMOSOMAL SPECIATION
creatorNavarro, Arcadi ; Barton, Nick H.
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descriptionChromosomal rearrangements can promote reproductive isolation by reducing recombination along a large section of the genome. We model the effects of the genetic barrier to gene flow caused by a chromosomal rearrangement on the rate of accumulation of postzygotic isolation genes in parapatry. We find that, if reproductive isolation is produced by the accumulation in parapatry of sets of alleles compatible within but incompatible across species, chromosomal rearrangements are far more likely to favor it than classical genetic barriers without chromosomal changes. New evidence of the role of chromosomal rearrangements in parapatric speciation suggests that postzygotic isolation is often due to the accumulation of such incompatibilities. The model makes testable qualitative predictions about the genetic signature of speciation.
editionReceived June 12, 2002. Accepted October 12, 2002.
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subjectAlleles ; Analysis ; Animals ; Biological Evolution ; Chromosomal changes ; Chromosomes ; Chromosomes - genetics ; divergence ; Drosophila ; Evolution ; Evolutionary genetics ; Female ; Genes ; Genetic aspects ; Genetic diversity ; Genetic loci ; Genetic research ; Genetic Variation ; Genome ; Genomes ; Genomics ; Models, Genetic ; Mutation ; parapatry ; Physiological aspects ; Population genetics ; postzygotic isolation ; Recombination, Genetic ; Reproduction ; Speciation ; Zygote - physiology ; Zygotes
ispartofEvolution, 2003-03, Vol.57 (3), p.447-459
rightsCopyright 2003 The Society for the Study of Evolution
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abstractChromosomal rearrangements can promote reproductive isolation by reducing recombination along a large section of the genome. We model the effects of the genetic barrier to gene flow caused by a chromosomal rearrangement on the rate of accumulation of postzygotic isolation genes in parapatry. We find that, if reproductive isolation is produced by the accumulation in parapatry of sets of alleles compatible within but incompatible across species, chromosomal rearrangements are far more likely to favor it than classical genetic barriers without chromosomal changes. New evidence of the role of chromosomal rearrangements in parapatric speciation suggests that postzygotic isolation is often due to the accumulation of such incompatibilities. The model makes testable qualitative predictions about the genetic signature of speciation.
copOxford, UK
pubBlackwell Publishing Ltd
pmid12703935
doi10.1111/j.0014-3820.2003.tb01537.x
tpages13
editionReceived June 12, 2002. Accepted October 12, 2002.