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Gene genealogies reveal cryptic species and host preferences for the pine fungal pathogen Grosmannia clavigera

hal.structure.identifierDepartment of Wood Science
dc.contributor.authorALAMOUTI, Sepideh M.
hal.structure.identifierDepartment of Wood Science
dc.contributor.authorWANG, Vincent
hal.structure.identifierDepartment of Wood Science
dc.contributor.authorDIGUISTINI, Scott
hal.structure.identifierDepartment of Ecosystem and Conservation Sciences
dc.contributor.authorSIX, Diana L.
hal.structure.identifierUniversity of British Columbia [UBC]
dc.contributor.authorBOHLMANN, Joerg
hal.structure.identifierUniversity of British Columbia [UBC]
dc.contributor.authorHAMELIN, Richard C.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorFEAU, Nicolas
hal.structure.identifierDepartment of Wood Science
dc.contributor.authorBREUIL, Colette
dc.date.accessioned2022-10-12T12:52:18Z
dc.date.available2022-10-12T12:52:18Z
dc.date.issued2011
dc.identifier.issn0962-1083
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/157371
dc.description.abstractEnGrosmannia clavigera is a fungal pathogen of pine forests in western North America and a symbiotic associate of two sister bark beetles: Dendroctonus ponderosae and D. jeffreyi. This fungus and its beetle associate D. ponderosae are expanding in large epidemics in western North America. Using the fungal genome sequence and gene annotations, we assessed whether fungal isolates from the two beetles inhabiting different species of pine in epidemic regions of western Canada and the USA, as well as in localized populations outside of the current epidemic, represent different genetic lineages. We characterized nucleotide variations in 67 genomic regions and selected 15 for the phylogenetic analysis. Using concordance of gene genealogies and distinct ecological characteristics, we identified two sibling phylogenetic species: Gc and Gs. Where the closely related Pinus ponderosa and P. jeffreyi are infested by localized populations of their respective beetles, Gc is present. In contrast, Gs is an exclusive associate of D. ponderosae mainly present on its primary host-tree P. contorta; however, in the current epidemic areas, it is also found in other pine species. These results suggest that the host-tree species and the beetle population dynamics may be important factors associated with the genetic divergence and diversity of fungal partners in the beetle-tree ecosystems. Gc represents the original G. clavigera holotype, and Gs should be described as a new species.
dc.language.isoen
dc.publisherWiley
dc.subjectPINUS PONDEROSA
dc.subjectCHAMPIGNON DE BLEUISSEMENT
dc.subjectPIN JAUNE
dc.subjectDENDROCTONE
dc.subject.enGROSMANNIA CLAVIGERA
dc.subject.enCRYPTIC SPECIES
dc.subject.enFUNGAL PATHOGEN
dc.subject.enHOST ADAPTATION
dc.subject.enMOUNTAIN PINE BEETLE
dc.subject.enPINE TREE
dc.subject.enPINUS JEFFREYI
dc.subject.enPIN DE JEFFREY
dc.title.enGene genealogies reveal cryptic species and host preferences for the pine fungal pathogen Grosmannia clavigera
dc.typeArticle de revue
dc.identifier.doi10.1111/j.1365-294X.2011.05109.x
dc.subject.halSciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire
bordeaux.journalMolecular Ecology
bordeaux.page2581-2602
bordeaux.volume20
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue12
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02650038
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02650038v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Molecular%20Ecology&rft.date=2011&rft.volume=20&rft.issue=12&rft.spage=2581-2602&rft.epage=2581-2602&rft.eissn=0962-1083&rft.issn=0962-1083&rft.au=ALAMOUTI,%20Sepideh%20M.&WANG,%20Vincent&DIGUISTINI,%20Scott&SIX,%20Diana%20L.&BOHLMANN,%20Joerg&rft.genre=article


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