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What was old is new again: thermal adaptation within clonal lineages during range expansion in a fungal pathogen

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorROBIN, Cécile
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorANDANSON, Audrey
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorSAINT-JEAN, Gilles
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorFABREGUETTES, Olivier
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDUTECH, Cyril
dc.date.accessioned2022-10-12T13:28:08Z
dc.date.available2022-10-12T13:28:08Z
dc.date.issued2017
dc.identifier.issn0962-1083
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/158136
dc.description.abstractEnRange-expanding species are expected to gain an increasing importance in the context of global change. They provide a great opportunity to study contemporary evolutionary changes and to unravel the mechanisms of evolution. Cryphonectria parasitica, the causal agent of chestnut blight, originating from Asia, has been spread since the beginning of the 20th century into different continents. We took advantage of the C. parasitica recent emergence in northern France to study the changes in population genetic structure and in phenotypic traits along this colonization and climatic gradient. Four hundred twenty-seven C. parasitica isolates were sampled in 47 chestnut sites in northern France. The C. parasitica outbreak in the north was found to be due to the expansion of five dominant clonal groups from southern France and to the emergence of a few rare recombined genotypes. The evolutionary changes during C. parasitica range expansion were studied by analyzing phenotypic changes in isolates from the same clonal lineage, with or without a geographic shift. Growth rates were assessed in vitro, at four temperatures. The northern isolates grew faster at 12 and 15°C and more slowly at 28 and 32°C than the southern isolates. These results strongly suggest local adaptation to low temperatures in C. parasitica, with a trade-off of slower growth at high temperatures. They also reflect the high evolutionary potential of C. parasitica along a colonization gradient and show that clonal evolution is not a limitation for the rapid thermal adaptation of this invasive fungal species.
dc.language.isoen
dc.publisherWiley
dc.subjectchangement global
dc.subjectcryphonectria parasitica
dc.subjectchâtaignier
dc.subjectbrulure foliaire
dc.subjectgradient thermique
dc.subjectfrance
dc.subject.enthermal gradient
dc.title.enWhat was old is new again: thermal adaptation within clonal lineages during range expansion in a fungal pathogen
dc.typeArticle de revue
dc.identifier.doi10.1111/mec.14039
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
dc.subject.halSciences de l'environnement/Environnement et Société
bordeaux.journalMolecular Ecology
bordeaux.page1952-1963
bordeaux.volume26
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue7
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-01608793
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01608793v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Molecular%20Ecology&rft.date=2017&rft.volume=26&rft.issue=7&rft.spage=1952-1963&rft.epage=1952-1963&rft.eissn=0962-1083&rft.issn=0962-1083&rft.au=ROBIN,%20C%C3%A9cile&ANDANSON,%20Audrey&SAINT-JEAN,%20Gilles&FABREGUETTES,%20Olivier&DUTECH,%20Cyril&rft.genre=article


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