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Repeated unidirectional introgression towards Populus balsamifera in contact zones of exotic and native poplars

AbstractAs the evolutionary significance of hybridization is largely dictated by its extent beyond the first generation, we broadly surveyed patterns of introgression across a sympatric zone of two native poplars (Populus balsamifera, Populus deltoides) in Quebec, Canada within which European exotic... Full description

Journal Title: Molecular Ecology Jan 2010, Vol.19(1), pp.132-145
Main Author: Thompson, Stacey
Other Authors: Lamothe, Manuel , Meirmans, Patrick , Perinet, Pierre , Isabel, Nathalie
Format: Electronic Article Electronic Article
Language: English
Subjects:
Age
ID: ISSN: 0962-1083 ; DOI: 10.1111/j.1365-294X.2009.04442.x
Link: http://search.proquest.com/docview/21260189/?pq-origsite=primo
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title: Repeated unidirectional introgression towards Populus balsamifera in contact zones of exotic and native poplars
format: Article
creator:
  • Thompson, Stacey
  • Lamothe, Manuel
  • Meirmans, Patrick
  • Perinet, Pierre
  • Isabel, Nathalie
subjects:
  • Fertility
  • Age
  • Bayesian Analysis
  • Reproductive Isolation
  • Single-Nucleotide Polymorphism
  • Trees
  • Sympatric Populations
  • Hybrids
  • Evolution
  • Populus Balsamifera
  • Populus Deltoides
  • Populus Nigra
  • Ecosystem and Ecology Studies
  • Plants and Algae
ispartof: Molecular Ecology, Jan 2010, Vol.19(1), pp.132-145
description: AbstractAs the evolutionary significance of hybridization is largely dictated by its extent beyond the first generation, we broadly surveyed patterns of introgression across a sympatric zone of two native poplars (Populus balsamifera, Populus deltoides) in Quebec, Canada within which European exotic Populus nigra and its hybrids have been extensively planted since the 1800s. Single nucleotide polymorphisms (SNPs) that appeared fixed within each species were characterized by DNA-sequencing pools of pure individuals. Thirty-five of these diagnostic SNPs were employed in a high-throughput assay that genotyped 635 trees of different age classes, sampled from 15 sites with various degrees of anthropogenic disturbance. The degree of admixture within sampled trees was then assessed through Bayesian clustering of genotypes. Hybrids were present in seven of the populations, with 2.4% of all sampled trees showing spontaneous admixture. Sites with hybrids were significantly...
language: eng
source:
identifier: ISSN: 0962-1083 ; DOI: 10.1111/j.1365-294X.2009.04442.x
fulltext: fulltext
issn:
  • 09621083
  • 0962-1083
url: Link


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titleRepeated unidirectional introgression towards Populus balsamifera in contact zones of exotic and native poplars
creatorThompson, Stacey ; Lamothe, Manuel ; Meirmans, Patrick ; Perinet, Pierre ; Isabel, Nathalie
contributorThompson, Stacey (correspondence author)
ispartofMolecular Ecology, Jan 2010, Vol.19(1), pp.132-145
identifierISSN: 0962-1083 ; DOI: 10.1111/j.1365-294X.2009.04442.x
subjectFertility ; Age ; Bayesian Analysis ; Reproductive Isolation ; Single-Nucleotide Polymorphism ; Trees ; Sympatric Populations ; Hybrids ; Evolution ; Populus Balsamifera ; Populus Deltoides ; Populus Nigra ; Ecosystem and Ecology Studies ; Plants and Algae
descriptionAbstractAs the evolutionary significance of hybridization is largely dictated by its extent beyond the first generation, we broadly surveyed patterns of introgression across a sympatric zone of two native poplars (Populus balsamifera, Populus deltoides) in Quebec, Canada within which European exotic Populus nigra and its hybrids have been extensively planted since the 1800s. Single nucleotide polymorphisms (SNPs) that appeared fixed within each species were characterized by DNA-sequencing pools of pure individuals. Thirty-five of these diagnostic SNPs were employed in a high-throughput assay that genotyped 635 trees of different age classes, sampled from 15 sites with various degrees of anthropogenic disturbance. The degree of admixture within sampled trees was then assessed through Bayesian clustering of genotypes. Hybrids were present in seven of the populations, with 2.4% of all sampled trees showing spontaneous admixture. Sites with hybrids were significantly...
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abstractAbstractAs the evolutionary significance of hybridization is largely dictated by its extent beyond the first generation, we broadly surveyed patterns of introgression across a sympatric zone of two native poplars (Populus balsamifera, Populus deltoides) in Quebec, Canada within which European exotic Populus nigra and its hybrids have been extensively planted since the 1800s. Single nucleotide polymorphisms (SNPs) that appeared fixed within each species were characterized by DNA-sequencing pools of pure individuals. Thirty-five of these diagnostic SNPs were employed in a high-throughput assay that genotyped 635 trees of different age classes, sampled from 15 sites with various degrees of anthropogenic disturbance. The degree of admixture within sampled trees was then assessed through Bayesian clustering of genotypes. Hybrids were present in seven of the populations, with 2.4% of all sampled trees showing spontaneous admixture. Sites with hybrids were significantly...
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