The genetic structure of the plant pathogenic fungus Melampsora larici-populina on its wild host is extensively impacted by host domestication.
Identifieur interne : 000064 ( Main/Exploration ); précédent : 000063; suivant : 000065The genetic structure of the plant pathogenic fungus Melampsora larici-populina on its wild host is extensively impacted by host domestication.
Auteurs : C. Xhaard [France] ; B. Fabre ; A. Andrieux ; P. Gladieux ; B. Barrès ; P. Frey ; F. HalkettSource :
- Molecular ecology [ 1365-294X ] ; 2011.
Descripteurs français
- KwdFr :
- Allèles (MeSH), Analyse de regroupements (MeSH), Basidiomycota (génétique), Basidiomycota (isolement et purification), Basidiomycota (pathogénicité), Démographie (MeSH), Flux des gènes (MeSH), France (MeSH), Génotype (MeSH), Génétique des populations (MeSH), Maladies des plantes (microbiologie), Mutation (MeSH), Phénotype (MeSH), Populus (microbiologie), Répétitions microsatellites (génétique), Structures génétiques (génétique), Sélection (MeSH), Théorème de Bayes (MeSH), Variation génétique (MeSH), Virulence (génétique).
- MESH :
- génétique : Basidiomycota, Répétitions microsatellites, Structures génétiques, Virulence.
- isolement et purification : Basidiomycota.
- microbiologie : Maladies des plantes, Populus.
- pathogénicité : Basidiomycota.
- Allèles, Analyse de regroupements, Démographie, Flux des gènes, France, Génotype, Génétique des populations, Mutation, Phénotype, Sélection, Théorème de Bayes, Variation génétique.
- Wicri :
- geographic : France.
English descriptors
- KwdEn :
- Alleles (MeSH), Basidiomycota (genetics), Basidiomycota (isolation & purification), Basidiomycota (pathogenicity), Bayes Theorem (MeSH), Breeding (MeSH), Cluster Analysis (MeSH), Demography (MeSH), France (MeSH), Gene Flow (MeSH), Genetic Structures (genetics), Genetic Variation (MeSH), Genetics, Population (MeSH), Genotype (MeSH), Microsatellite Repeats (genetics), Mutation (MeSH), Phenotype (MeSH), Plant Diseases (microbiology), Populus (microbiology), Virulence (genetics).
- MESH :
- geographic : France.
- genetics : Basidiomycota, Genetic Structures, Microsatellite Repeats, Virulence.
- isolation & purification : Basidiomycota.
- microbiology : Plant Diseases, Populus.
- pathogenicity : Basidiomycota.
- Alleles, Bayes Theorem, Breeding, Cluster Analysis, Demography, Gene Flow, Genetic Variation, Genetics, Population, Genotype, Mutation, Phenotype.
Abstract
Wild and cultivated plants represent very different habitats for pathogens, especially when cultivated plants bear qualitative resistance genes. Here, we investigated to what extent the population genetic structure of a plant pathogenic fungus collected on its wild host can be impacted by the deployment of resistant cultivars. We studied one of the main poplar diseases, poplar rust, caused by the fungus Melampsora larici-populina. A thousand and fifty individuals sampled from several locations in France were phenotyped for their virulence profile (ability to infect or not the most deployed resistant cultivar 'Beaupré'), and a subset of these was genotyped using 25 microsatellite markers. Bayesian assignment tests on genetic data clustered the 476 genotyped individuals into three genetic groups. Group 1 gathered most virulent individuals and displayed evidence for selection and drastic demographic changes resulting from breakdown of the poplar cultivar 'Beaupré'. Group 2 comprised individuals corresponding to ancestral populations of M. larici-populina naturally occurring in the native range. Group 3 displayed the hallmarks of strict asexual reproduction, which has never previously been demonstrated in this species. We discuss how poplar cultivation has influenced the spatial and genetic structure of this plant pathogenic fungus, and has led to the spread of virulence alleles (gene swamping) in M. larici-populina populations evolving on the wild host.
DOI: 10.1111/j.1365-294X.2011.05138.x
PubMed: 21627704
Affiliations:
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Here, we investigated to what extent the population genetic structure of a plant pathogenic fungus collected on its wild host can be impacted by the deployment of resistant cultivars. We studied one of the main poplar diseases, poplar rust, caused by the fungus Melampsora larici-populina. A thousand and fifty individuals sampled from several locations in France were phenotyped for their virulence profile (ability to infect or not the most deployed resistant cultivar 'Beaupré'), and a subset of these was genotyped using 25 microsatellite markers. Bayesian assignment tests on genetic data clustered the 476 genotyped individuals into three genetic groups. Group 1 gathered most virulent individuals and displayed evidence for selection and drastic demographic changes resulting from breakdown of the poplar cultivar 'Beaupré'. Group 2 comprised individuals corresponding to ancestral populations of M. larici-populina naturally occurring in the native range. Group 3 displayed the hallmarks of strict asexual reproduction, which has never previously been demonstrated in this species. We discuss how poplar cultivation has influenced the spatial and genetic structure of this plant pathogenic fungus, and has led to the spread of virulence alleles (gene swamping) in M. larici-populina populations evolving on the wild host.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21627704</PMID><DateCompleted><Year>2012</Year><Month>12</Month><Day>10</Day></DateCompleted><DateRevised><Year>2011</Year><Month>06</Month><Day>22</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-294X</ISSN><JournalIssue CitedMedium="Internet"><Volume>20</Volume><Issue>13</Issue><PubDate><Year>2011</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Molecular ecology</Title><ISOAbbreviation>Mol Ecol</ISOAbbreviation></Journal><ArticleTitle>The genetic structure of the plant pathogenic fungus Melampsora larici-populina on its wild host is extensively impacted by host domestication.</ArticleTitle><Pagination><MedlinePgn>2739-55</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-294X.2011.05138.x</ELocationID><Abstract><AbstractText>Wild and cultivated plants represent very different habitats for pathogens, especially when cultivated plants bear qualitative resistance genes. Here, we investigated to what extent the population genetic structure of a plant pathogenic fungus collected on its wild host can be impacted by the deployment of resistant cultivars. We studied one of the main poplar diseases, poplar rust, caused by the fungus Melampsora larici-populina. A thousand and fifty individuals sampled from several locations in France were phenotyped for their virulence profile (ability to infect or not the most deployed resistant cultivar 'Beaupré'), and a subset of these was genotyped using 25 microsatellite markers. Bayesian assignment tests on genetic data clustered the 476 genotyped individuals into three genetic groups. Group 1 gathered most virulent individuals and displayed evidence for selection and drastic demographic changes resulting from breakdown of the poplar cultivar 'Beaupré'. Group 2 comprised individuals corresponding to ancestral populations of M. larici-populina naturally occurring in the native range. Group 3 displayed the hallmarks of strict asexual reproduction, which has never previously been demonstrated in this species. We discuss how poplar cultivation has influenced the spatial and genetic structure of this plant pathogenic fungus, and has led to the spread of virulence alleles (gene swamping) in M. larici-populina populations evolving on the wild host.</AbstractText><CopyrightInformation>© 2011 Blackwell Publishing Ltd.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Xhaard</LastName><ForeName>C</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>INRA, Nancy-Université, UMR 1136 Interactions Arbres-Microorganismes, F-54280 Champenoux, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fabre</LastName><ForeName>B</ForeName><Initials>B</Initials></Author><Author ValidYN="Y"><LastName>Andrieux</LastName><ForeName>A</ForeName><Initials>A</Initials></Author><Author ValidYN="Y"><LastName>Gladieux</LastName><ForeName>P</ForeName><Initials>P</Initials></Author><Author 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MajorTopicYN="N">Basidiomycota</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName><QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName><QualifierName UI="Q000472" MajorTopicYN="N">pathogenicity</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D001499" MajorTopicYN="N">Bayes Theorem</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D001947" MajorTopicYN="N">Breeding</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D016000" MajorTopicYN="N">Cluster Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003710" MajorTopicYN="N">Demography</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005602" MajorTopicYN="N" Type="Geographic">France</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D051456" MajorTopicYN="N">Gene Flow</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D040342" MajorTopicYN="N">Genetic Structures</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="Y">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014644" MajorTopicYN="N">Genetic Variation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005828" MajorTopicYN="N">Genetics, Population</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018895" MajorTopicYN="N">Microsatellite Repeats</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009154" MajorTopicYN="N">Mutation</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010641" MajorTopicYN="N">Phenotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D010935" MajorTopicYN="N">Plant Diseases</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D032107" MajorTopicYN="N">Populus</DescriptorName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014774" MajorTopicYN="N">Virulence</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>6</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>6</Month><Day>2</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>12</Month><Day>12</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">21627704</ArticleId><ArticleId IdType="doi">10.1111/j.1365-294X.2011.05138.x</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>France</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Champenoux</li></settlement><orgName><li>Nancy-Université</li></orgName></list><tree><noCountry><name sortKey="Andrieux, A" sort="Andrieux, A" uniqKey="Andrieux A" first="A" last="Andrieux">A. Andrieux</name><name sortKey="Barres, B" sort="Barres, B" uniqKey="Barres B" first="B" last="Barrès">B. Barrès</name><name sortKey="Fabre, B" sort="Fabre, B" uniqKey="Fabre B" first="B" last="Fabre">B. Fabre</name><name sortKey="Frey, P" sort="Frey, P" uniqKey="Frey P" first="P" last="Frey">P. Frey</name><name sortKey="Gladieux, P" sort="Gladieux, P" uniqKey="Gladieux P" first="P" last="Gladieux">P. Gladieux</name><name sortKey="Halkett, F" sort="Halkett, F" uniqKey="Halkett F" first="F" last="Halkett">F. Halkett</name></noCountry><country name="France"><region name="Grand Est"><name sortKey="Xhaard, C" sort="Xhaard, C" uniqKey="Xhaard C" first="C" last="Xhaard">C. Xhaard</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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