Adaptation to the most abundant host genotype in an agricultural plant-pathogen system--potato late blight.
Identifieur interne : 001D48 ( Main/Exploration ); précédent : 001D47; suivant : 001D49Adaptation to the most abundant host genotype in an agricultural plant-pathogen system--potato late blight.
Auteurs : J. Montarry [France] ; I. Glais ; R. Corbiere ; D. AndrivonSource :
- Journal of evolutionary biology [ 1420-9101 ] ; 2008.
Descripteurs français
- KwdFr :
- ADN des algues (génétique), Adaptation biologique (MeSH), Analyse de regroupements (MeSH), Génotype (MeSH), Interactions hôte-pathogène (MeSH), Maladies des plantes (MeSH), Modèles génétiques (MeSH), Phytophthora infestans (génétique), Phytophthora infestans (pathogénicité), Solanum tuberosum (microbiologie), Sélection génétique (MeSH), Variation génétique (MeSH).
- MESH :
- génétique : ADN des algues, Phytophthora infestans.
- microbiologie : Solanum tuberosum.
- pathogénicité : Phytophthora infestans.
- Adaptation biologique, Analyse de regroupements, Génotype, Interactions hôte-pathogène, Maladies des plantes, Modèles génétiques, Sélection génétique, Variation génétique.
English descriptors
- KwdEn :
- Adaptation, Biological (MeSH), Cluster Analysis (MeSH), DNA, Algal (genetics), Genetic Variation (MeSH), Genotype (MeSH), Host-Pathogen Interactions (MeSH), Models, Genetic (MeSH), Phytophthora infestans (genetics), Phytophthora infestans (pathogenicity), Plant Diseases (MeSH), Selection, Genetic (MeSH), Solanum tuberosum (microbiology).
- MESH :
- chemical , genetics : DNA, Algal.
- genetics : Phytophthora infestans.
- microbiology : Solanum tuberosum.
- pathogenicity : Phytophthora infestans.
- Adaptation, Biological, Cluster Analysis, Genetic Variation, Genotype, Host-Pathogen Interactions, Models, Genetic, Plant Diseases, Selection, Genetic.
Abstract
This study investigated local adaptation of Phytophthora infestans populations, the causal agent of potato late blight, to two susceptible potato cultivars, each grown for a number of years and over large areas in separate French regions. We measured aggressiveness (quantitative pathogenicity) of each pathogen population to sympatric and allopatric hosts in a reciprocal cross-inoculation experiment. There was no evidence for specific host adaptation in this pathosystem. At both local and regional scales, the distribution of aggressiveness fits a pattern of adaptation to the most common host genotype. Our observations support the theoretical predictions that large pathogen dispersal rates and genetic drift, revealed by the comparisons of the genotypic structures of the populations tested, can lead to a local adaptation pattern detectable only at a large spatial scale. The unravelling of adaptive patterns at different spatial scales can be used for a more efficient management of the disease.
DOI: 10.1111/j.1420-9101.2008.01557.x
PubMed: 18547352
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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We measured aggressiveness (quantitative pathogenicity) of each pathogen population to sympatric and allopatric hosts in a reciprocal cross-inoculation experiment. There was no evidence for specific host adaptation in this pathosystem. At both local and regional scales, the distribution of aggressiveness fits a pattern of adaptation to the most common host genotype. Our observations support the theoretical predictions that large pathogen dispersal rates and genetic drift, revealed by the comparisons of the genotypic structures of the populations tested, can lead to a local adaptation pattern detectable only at a large spatial scale. The unravelling of adaptive patterns at different spatial scales can be used for a more efficient management of the disease.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18547352</PMID><DateCompleted><Year>2008</Year><Month>12</Month><Day>24</Day></DateCompleted><DateRevised><Year>2009</Year><Month>11</Month><Day>19</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1420-9101</ISSN><JournalIssue CitedMedium="Internet"><Volume>21</Volume><Issue>5</Issue><PubDate><Year>2008</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Journal of evolutionary biology</Title><ISOAbbreviation>J Evol Biol</ISOAbbreviation></Journal><ArticleTitle>Adaptation to the most abundant host genotype in an agricultural plant-pathogen system--potato late blight.</ArticleTitle><Pagination><MedlinePgn>1397-407</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1420-9101.2008.01557.x</ELocationID><Abstract><AbstractText>This study investigated local adaptation of Phytophthora infestans populations, the causal agent of potato late blight, to two susceptible potato cultivars, each grown for a number of years and over large areas in separate French regions. We measured aggressiveness (quantitative pathogenicity) of each pathogen population to sympatric and allopatric hosts in a reciprocal cross-inoculation experiment. There was no evidence for specific host adaptation in this pathosystem. At both local and regional scales, the distribution of aggressiveness fits a pattern of adaptation to the most common host genotype. Our observations support the theoretical predictions that large pathogen dispersal rates and genetic drift, revealed by the comparisons of the genotypic structures of the populations tested, can lead to a local adaptation pattern detectable only at a large spatial scale. 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Andrivon</name><name sortKey="Corbiere, R" sort="Corbiere, R" uniqKey="Corbiere R" first="R" last="Corbiere">R. Corbiere</name><name sortKey="Glais, I" sort="Glais, I" uniqKey="Glais I" first="I" last="Glais">I. Glais</name></noCountry><country name="France"><region name="Région Bretagne"><name sortKey="Montarry, J" sort="Montarry, J" uniqKey="Montarry J" first="J" last="Montarry">J. Montarry</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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