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Multiple introductions of divergent genetic lineages in an invasive fungal pathogen, Cryphonectria parasitica, in France

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDUTECH, Christian Cyril
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorFABREGUETTES, Olivier
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCAPDEVIELLE, Xavier
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorROBIN, Cécile
dc.date.accessioned2022-10-12T12:44:16Z
dc.date.available2022-10-12T12:44:16Z
dc.date.issued2010
dc.identifier.issn0018-067X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/157162
dc.description.abstractEnThe occurrence of multiple introductions may be a crucial factor in the successful establishment of invasive species, but few studies focus on the introduction of fungal pathogens, despite their significant effect on invaded habitats. Although Cryphonectria parasitica, the chestnut blight fungus introduced in North America and Europe from Asia during the 20th century, caused dramatic changes in its new range, the history of its introduction is not well retraced in Europe. Using 10 microsatellite loci, we investigated the genetic diversity of 583 isolates in France, where several introductions have been hypothesized. Our analyses showed that the seven most frequent multilocus genotypes belonged to three genetic lineages, which had a different and geographically limited distribution. These results suggest that different introduction events occurred in France. Genetic recombination was low among these lineages, despite the presence of the two mating types in each chestnut stand analysed. The spatial distribution of lineages suggests that the history of introductions in France associated with the slow expansion of the disease has contributed to the low observed rate of recombination among the divergent lineages. However, we discuss the possibility that environmental conditions or viral interactions could locally reduce recombination among genotypes.
dc.language.isoen
dc.publisherNature Publishing Group
dc.subjectASCOMYCOTA
dc.subjectBIOLOGICAL INVASION
dc.subject.enBAYESIAN CLUSTERING ANALYSIS
dc.subject.enCRYPHONECTRIA-HYPOVIRUS
dc.subject.enLINKAGE DISEQUILIBRIUM
dc.subject.enPRINCIPAL COMPONENT ANALYSIS
dc.title.enMultiple introductions of divergent genetic lineages in an invasive fungal pathogen, Cryphonectria parasitica, in France
dc.typeArticle de revue
dc.identifier.doi10.1038/hdy.2009.164
dc.subject.halSciences du Vivant [q-bio]/Médecine humaine et pathologie
bordeaux.journalHeredity
bordeaux.page220-228
bordeaux.volume105
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue2
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02664934
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02664934v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Heredity&rft.date=2010&rft.volume=105&rft.issue=2&rft.spage=220-228&rft.epage=220-228&rft.eissn=0018-067X&rft.issn=0018-067X&rft.au=DUTECH,%20Christian%20Cyril&FABREGUETTES,%20Olivier&CAPDEVIELLE,%20Xavier&ROBIN,%20C%C3%A9cile&rft.genre=article


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