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Uniform selection as a primary force reducing population genetic differentiation of cavitation resistance across a species range

hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l'Arbre Fruitier et Forestier [PIAF]
dc.contributor.authorLAMY, Jean-Baptiste
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBOUFFIER, Laurent
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBURLETT, Régis
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
hal.structure.identifierLaboratoire de Physique et Physiologie Intégratives de l'Arbre Fruitier et Forestier [PIAF]
dc.contributor.authorCOCHARD, Hervé
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
dc.date.accessioned2022-10-12T12:51:06Z
dc.date.available2022-10-12T12:51:06Z
dc.date.issued2011
dc.identifier.issn1932-6203
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/157331
dc.description.abstractEnBackground : Cavitation resistance to water stress-induced embolism determines plant survival during drought. This adaptive trait has been described as highly variable in a wide range of tree species, but little is known about the extent of genetic and phenotypic variability within species. This information is essential to our understanding of the evolutionary forces that have shaped this trait, and for evaluation of its inclusion in breeding programs. *Methodology : We assessed cavitation resistance (P50), growth and carbon isotope composition in six Pinus pinaster populations in a provenance and progeny trial. We estimated the heritability of cavitation resistance and compared the distribution of neutral markers (FST) and quantitative genetic differentiation (QST), for retrospective identification of the evolutionary forces acting on these traits. *Results/Discussion : In contrast to growth and carbon isotope composition, no population differentiation was found for cavitation resistance. Heritability was higher than for the other traits, with a low additive genetic variance (h2ns = 0.43±0.18, CVA = 4.4%). QST was significantly lower than FST, indicating uniform selection for P50, rather than genetic drift. Putative mechanisms underlying QST
dc.language.isoen
dc.publisherPublic Library of Science
dc.subjectPIN MARITIME
dc.subjectCARTOGRAPHIE GENETIQUE
dc.subjectRÉSISTANCE A LA CAVITATION
dc.title.enUniform selection as a primary force reducing population genetic differentiation of cavitation resistance across a species range
dc.typeArticle de revue
dc.identifier.doi10.1371/journal.pone.0023476
dc.subject.halSciences du Vivant [q-bio]/Biologie cellulaire
bordeaux.journalPLoS ONE
bordeaux.page12 p.
bordeaux.volume6
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue8
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-00964845
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00964845v1
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