The genetic structure of the plant pathogenic fungus Melampsora larici‐populina on its wild host is extensively impacted by host domestication
Identifieur interne : 000C60 ( Main/Exploration ); précédent : 000C59; suivant : 000C61The 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 [France] ; A. Andrieux [France] ; P. Gladieux [France] ; B. Barrès [France] ; P. Frey [France] ; F. Halkett [France]Source :
- Molecular Ecology [ 0962-1083 ] ; 2011-07.
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.
- Wicri :
- geographic : France.
- MESH :
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.
- Teeft :
- Allele, Alleles, Allelic, Allelic richness, Alternate host, Annual review, Aoste, Asexual, Asexual reproduction, Barres, Bayes Theorem, Bayesian, Beaupre, Blackwell publishing, Bottleneck, Breeding, Burdon, Burdon roelfs, Clonal, Clonal copies, Clonal lineages, Cluster Analysis, Cultivar, Demographic history, Demography, Different locations, Disequilibrium, Dispersal, Domestication, Ecology, Ecology evolution, Evolutionary biology, Extensive gene, False discovery rate, Frey, Fungal, Fungal genetics, Fungus, Gene Flow, Genetic, Genetic Variation, Genetic characteristics, Genetic differentiation, Genetic diversity, Genetic group, Genetic groups, Genetic structure, Genetic variability, Genetics, Genetics, Population, Genotype, Genotyped, Genotypic, Geographical distances, Gerard, Giraud, Gladieux, Guillot, Halkett, Heterozygosity, Heterozygote, Host plants, Imbalance index, Individuals genotyped, Iteration, Larch, Large heterozygote, Laricipopulina, Life cycle, Lineage, Linkage disequilibrium, Locus, Markov, Markov chains, Mcdonald, Melampsora, Microsatellite, Microsatellite loci, Molecular ecology, Molecular ecology notes, Multilocus, Multilocus genotype, Multilocus genotypes, Mutation, Mutation model, Neutral expectations, Nigra, Nonspatial mode, Northern france, Northern half, Pathogen, Pathogen evolution, Phenotype, Phenotypic, Phytopathology, Pinon, Pinon frey, Plant diseases, Plant pathogens, Plant pathology, Poplar, Poplar cultivars, Poplar cultivation, Poplar rust, Population expansion, Population genetics, Population structure, Positive selection, Prelles, Puccinia, Puccinia striiformis, Qualitative resistance, Reference population, Reproductive mode, Rousset, Rust fungus, Sampling sites, Sexual reproduction, Sexual stage, Southern locations, Spatial distribution, Speciation, Stukenbrock, Stukenbrock mcdonald, Sympatric, Sympatry, Venturia inaequalis, Vir7, Vir7 individuals, Virulence, Virulent, Virulent individuals, Wild host, Wild hosts, Wild poplar.
- mix :
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.
Url:
- https://api.istex.fr/ark:/67375/WNG-J9FB0LFZ-G/fulltext.pdf
- https://hal.archives-ouvertes.fr/hal-01136973
DOI: 10.1111/j.1365-294X.2011.05138.x
Affiliations:
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Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Alleles (MeSH)</term>
<term>Basidiomycota (genetics)</term>
<term>Basidiomycota (isolation & purification)</term>
<term>Basidiomycota (pathogenicity)</term>
<term>Bayes Theorem (MeSH)</term>
<term>Breeding (MeSH)</term>
<term>Cluster Analysis (MeSH)</term>
<term>Demography (MeSH)</term>
<term>France (MeSH)</term>
<term>Gene Flow (MeSH)</term>
<term>Genetic Structures (genetics)</term>
<term>Genetic Variation (MeSH)</term>
<term>Genetics, Population (MeSH)</term>
<term>Genotype (MeSH)</term>
<term>Microsatellite Repeats (genetics)</term>
<term>Mutation (MeSH)</term>
<term>Phenotype (MeSH)</term>
<term>Plant Diseases (microbiology)</term>
<term>Populus (microbiology)</term>
<term>Virulence (genetics)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Allèles (MeSH)</term>
<term>Analyse de regroupements (MeSH)</term>
<term>Basidiomycota (génétique)</term>
<term>Basidiomycota (isolement et purification)</term>
<term>Basidiomycota (pathogénicité)</term>
<term>Démographie (MeSH)</term>
<term>Flux des gènes (MeSH)</term>
<term>France (MeSH)</term>
<term>Génotype (MeSH)</term>
<term>Génétique des populations (MeSH)</term>
<term>Maladies des plantes (microbiologie)</term>
<term>Mutation (MeSH)</term>
<term>Phénotype (MeSH)</term>
<term>Populus (microbiologie)</term>
<term>Répétitions microsatellites (génétique)</term>
<term>Structures génétiques (génétique)</term>
<term>Sélection (MeSH)</term>
<term>Théorème de Bayes (MeSH)</term>
<term>Variation génétique (MeSH)</term>
<term>Virulence (génétique)</term>
</keywords>
<keywords scheme="MESH" type="geographic" xml:lang="en"><term>France</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Basidiomycota</term>
<term>Genetic Structures</term>
<term>Microsatellite Repeats</term>
<term>Virulence</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr"><term>Basidiomycota</term>
<term>Répétitions microsatellites</term>
<term>Structures génétiques</term>
<term>Virulence</term>
</keywords>
<keywords scheme="MESH" qualifier="isolation & purification" xml:lang="en"><term>Basidiomycota</term>
</keywords>
<keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr"><term>Basidiomycota</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Maladies des plantes</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Diseases</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en"><term>Basidiomycota</term>
</keywords>
<keywords scheme="MESH" qualifier="pathogénicité" xml:lang="fr"><term>Basidiomycota</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Allele</term>
<term>Alleles</term>
<term>Allelic</term>
<term>Allelic richness</term>
<term>Alternate host</term>
<term>Annual review</term>
<term>Aoste</term>
<term>Asexual</term>
<term>Asexual reproduction</term>
<term>Barres</term>
<term>Bayes Theorem</term>
<term>Bayesian</term>
<term>Beaupre</term>
<term>Blackwell publishing</term>
<term>Bottleneck</term>
<term>Breeding</term>
<term>Burdon</term>
<term>Burdon roelfs</term>
<term>Clonal</term>
<term>Clonal copies</term>
<term>Clonal lineages</term>
<term>Cluster Analysis</term>
<term>Cultivar</term>
<term>Demographic history</term>
<term>Demography</term>
<term>Different locations</term>
<term>Disequilibrium</term>
<term>Dispersal</term>
<term>Domestication</term>
<term>Ecology</term>
<term>Ecology evolution</term>
<term>Evolutionary biology</term>
<term>Extensive gene</term>
<term>False discovery rate</term>
<term>Frey</term>
<term>Fungal</term>
<term>Fungal genetics</term>
<term>Fungus</term>
<term>Gene Flow</term>
<term>Genetic</term>
<term>Genetic Variation</term>
<term>Genetic characteristics</term>
<term>Genetic differentiation</term>
<term>Genetic diversity</term>
<term>Genetic group</term>
<term>Genetic groups</term>
<term>Genetic structure</term>
<term>Genetic variability</term>
<term>Genetics</term>
<term>Genetics, Population</term>
<term>Genotype</term>
<term>Genotyped</term>
<term>Genotypic</term>
<term>Geographical distances</term>
<term>Gerard</term>
<term>Giraud</term>
<term>Gladieux</term>
<term>Guillot</term>
<term>Halkett</term>
<term>Heterozygosity</term>
<term>Heterozygote</term>
<term>Host plants</term>
<term>Imbalance index</term>
<term>Individuals genotyped</term>
<term>Iteration</term>
<term>Larch</term>
<term>Large heterozygote</term>
<term>Laricipopulina</term>
<term>Life cycle</term>
<term>Lineage</term>
<term>Linkage disequilibrium</term>
<term>Locus</term>
<term>Markov</term>
<term>Markov chains</term>
<term>Mcdonald</term>
<term>Melampsora</term>
<term>Microsatellite</term>
<term>Microsatellite loci</term>
<term>Molecular ecology</term>
<term>Molecular ecology notes</term>
<term>Multilocus</term>
<term>Multilocus genotype</term>
<term>Multilocus genotypes</term>
<term>Mutation</term>
<term>Mutation model</term>
<term>Neutral expectations</term>
<term>Nigra</term>
<term>Nonspatial mode</term>
<term>Northern france</term>
<term>Northern half</term>
<term>Pathogen</term>
<term>Pathogen evolution</term>
<term>Phenotype</term>
<term>Phenotypic</term>
<term>Phytopathology</term>
<term>Pinon</term>
<term>Pinon frey</term>
<term>Plant diseases</term>
<term>Plant pathogens</term>
<term>Plant pathology</term>
<term>Poplar</term>
<term>Poplar cultivars</term>
<term>Poplar cultivation</term>
<term>Poplar rust</term>
<term>Population expansion</term>
<term>Population genetics</term>
<term>Population structure</term>
<term>Positive selection</term>
<term>Prelles</term>
<term>Puccinia</term>
<term>Puccinia striiformis</term>
<term>Qualitative resistance</term>
<term>Reference population</term>
<term>Reproductive mode</term>
<term>Rousset</term>
<term>Rust fungus</term>
<term>Sampling sites</term>
<term>Sexual reproduction</term>
<term>Sexual stage</term>
<term>Southern locations</term>
<term>Spatial distribution</term>
<term>Speciation</term>
<term>Stukenbrock</term>
<term>Stukenbrock mcdonald</term>
<term>Sympatric</term>
<term>Sympatry</term>
<term>Venturia inaequalis</term>
<term>Vir7</term>
<term>Vir7 individuals</term>
<term>Virulence</term>
<term>Virulent</term>
<term>Virulent individuals</term>
<term>Wild host</term>
<term>Wild hosts</term>
<term>Wild poplar</term>
</keywords>
<keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>France</term>
</keywords>
<keywords scheme="mix" xml:lang="en"><term>clustering analysis</term>
<term>demographic history</term>
<term>disease spread</term>
<term>gene flow</term>
<term>rust fungus</term>
<term>selection</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr"><term>Allèles</term>
<term>Analyse de regroupements</term>
<term>Démographie</term>
<term>Flux des gènes</term>
<term>France</term>
<term>Génotype</term>
<term>Génétique des populations</term>
<term>Mutation</term>
<term>Phénotype</term>
<term>Sélection</term>
<term>Théorème de Bayes</term>
<term>Variation génétique</term>
</keywords>
</textClass>
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<front><div type="abstract" xml:lang="en">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.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
</country>
<region><li>Aquitaine</li>
<li>Grand Est</li>
<li>Lorraine (région)</li>
<li>Nouvelle-Aquitaine</li>
</region>
<settlement><li>Cestas</li>
<li>Champenoux</li>
<li>Orsay</li>
</settlement>
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<tree><country name="France"><region name="Grand Est"><name sortKey="Xhaard, C" sort="Xhaard, C" uniqKey="Xhaard C" first="C." last="Xhaard">C. Xhaard</name>
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<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>
</country>
</tree>
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