Complex patterns of hybridization between exotic and native North American poplar species.
Identifieur interne : 003325 ( Main/Exploration ); précédent : 003324; suivant : 003326Complex patterns of hybridization between exotic and native North American poplar species.
Auteurs : Patrick G. Meirmans [Canada] ; Manuel Lamothe ; Marie-Claude Gros-Louis ; Damase Khasa ; Pierre Périnet ; Jean Bousquet (allergologue) [France] ; Nathalie IsabelSource :
- American journal of botany [ 0002-9122 ] ; 2010.
Abstract
UNLABELLED
PREMISE OF THE STUDY
Poplars and their hybrids are seen as important candidates for bioenergy initiatives. However, many concerns have been raised about large-scale plantations of new poplar cultivars. The deployment of such plants with novel traits brings the risk of potential spread of novel genome regions (including exotic genes, transgenes, or other heritable modifications) into natural populations of related species. The possibility of introgression is especially high in poplars because reproductive barriers between species are weak. Knowledge of the frequency of hybridization between cultivated trees and natural populations is one important step in the risk-assessment process. •
METHODS
We studied the rate of spontaneous hybridization from two sexually mature poplar plantations into adjacent natural populations of Populus deltoides and P. balsamifera. The two plantations, both in eastern Canada, contain many different complex hybrid clones with components from exotic species, mostly P. nigra, P. trichocarpa, and P. maximowiczii. We analyzed 12 species-specific single nucleotide polymorphisms from six different genes in 5373 offspring sampled from the natural populations. •
RESULTS
Contributions from all three exotics were found in the offspring, confirming low reproductive barriers among poplar species in these sections. The frequency of hybrid offspring varied among pollen donors, recipient populations, and years. •
CONCLUSIONS
The remarkably high rate of hybridization that was found in the smallest natural population sampled suggests that small peripheral populations carry a higher risk of introgression. These results could be used as a starting point for developing regulatory guidelines for the introduction of plants with novel traits.
DOI: 10.3732/ajb.0900271
PubMed: 21616802
Affiliations:
- Canada, France
- Languedoc-Roussillon, Occitanie (région administrative)
- Montpellier
- Centre hospitalier universitaire de Montpellier, Université de Montpellier
Links toward previous steps (curation, corpus...)
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Sainte-Foy, Québec, Québec G1V 4C7</wicri:regionArea><wicri:noRegion>Québec G1V 4C7</wicri:noRegion></affiliation></author><author><name sortKey="Lamothe, Manuel" sort="Lamothe, Manuel" uniqKey="Lamothe M" first="Manuel" last="Lamothe">Manuel Lamothe</name></author><author><name sortKey="Gros Louis, Marie Claude" sort="Gros Louis, Marie Claude" uniqKey="Gros Louis M" first="Marie-Claude" last="Gros-Louis">Marie-Claude Gros-Louis</name></author><author><name sortKey="Khasa, Damase" sort="Khasa, Damase" uniqKey="Khasa D" first="Damase" last="Khasa">Damase Khasa</name></author><author><name sortKey="Perinet, Pierre" sort="Perinet, Pierre" uniqKey="Perinet P" first="Pierre" last="Périnet">Pierre Périnet</name></author><author><name sortKey="Bousquet, Jean" sort="Bousquet, Jean" uniqKey="Bousquet J" first="Jean" last="Bousquet">Jean Bousquet (allergologue)</name><affiliation><country>France</country><placeName><settlement type="city">Montpellier</settlement><region type="old region" nuts="2">Languedoc-Roussillon</region><region type="region" nuts="2">Occitanie (région administrative)</region></placeName><orgName type="hospital" n="4">Centre hospitalier universitaire de Montpellier</orgName><orgName type="institution">Université de Montpellier</orgName></affiliation></author><author><name sortKey="Isabel, Nathalie" sort="Isabel, Nathalie" uniqKey="Isabel N" first="Nathalie" last="Isabel">Nathalie Isabel</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:21616802</idno><idno type="pmid">21616802</idno><idno type="doi">10.3732/ajb.0900271</idno><idno type="wicri:Area/Main/Corpus">002E01</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002E01</idno><idno type="wicri:Area/Main/Curation">002E01</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">002E01</idno><idno type="wicri:Area/Main/Exploration">002E01</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Complex patterns of hybridization between exotic and native North American poplar species.</title><author><name sortKey="Meirmans, Patrick G" sort="Meirmans, Patrick G" uniqKey="Meirmans P" first="Patrick G" last="Meirmans">Patrick G. 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However, many concerns have been raised about large-scale plantations of new poplar cultivars. The deployment of such plants with novel traits brings the risk of potential spread of novel genome regions (including exotic genes, transgenes, or other heritable modifications) into natural populations of related species. The possibility of introgression is especially high in poplars because reproductive barriers between species are weak. Knowledge of the frequency of hybridization between cultivated trees and natural populations is one important step in the risk-assessment process. •</p></div><div type="abstract" xml:lang="en"><p><b>METHODS</b></p><p>We studied the rate of spontaneous hybridization from two sexually mature poplar plantations into adjacent natural populations of Populus deltoides and P. balsamifera. The two plantations, both in eastern Canada, contain many different complex hybrid clones with components from exotic species, mostly P. nigra, P. trichocarpa, and P. maximowiczii. We analyzed 12 species-specific single nucleotide polymorphisms from six different genes in 5373 offspring sampled from the natural populations. •</p></div><div type="abstract" xml:lang="en"><p><b>RESULTS</b></p><p>Contributions from all three exotics were found in the offspring, confirming low reproductive barriers among poplar species in these sections. The frequency of hybrid offspring varied among pollen donors, recipient populations, and years. •</p></div><div type="abstract" xml:lang="en"><p><b>CONCLUSIONS</b></p><p>The remarkably high rate of hybridization that was found in the smallest natural population sampled suggests that small peripheral populations carry a higher risk of introgression. These results could be used as a starting point for developing regulatory guidelines for the introduction of plants with novel traits.</p></div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">21616802</PMID><DateCompleted><Year>2012</Year><Month>10</Month><Day>02</Day></DateCompleted><DateRevised><Year>2014</Year><Month>07</Month><Day>30</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0002-9122</ISSN><JournalIssue CitedMedium="Print"><Volume>97</Volume><Issue>10</Issue><PubDate><Year>2010</Year><Month>Oct</Month></PubDate></JournalIssue><Title>American journal of botany</Title><ISOAbbreviation>Am J Bot</ISOAbbreviation></Journal><ArticleTitle>Complex patterns of hybridization between exotic and native North American poplar species.</ArticleTitle><Pagination><MedlinePgn>1688-97</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3732/ajb.0900271</ELocationID><Abstract><AbstractText Label="UNLABELLED"></AbstractText><AbstractText Label="PREMISE OF THE STUDY" NlmCategory="OBJECTIVE">Poplars and their hybrids are seen as important candidates for bioenergy initiatives. 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Meirmans</name></noRegion></country><country name="France"><region name="Languedoc-Roussillon"><name sortKey="Bousquet, Jean" sort="Bousquet, Jean" uniqKey="Bousquet J" first="Jean" last="Bousquet">Jean Bousquet (allergologue)</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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