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dc.rights.licenseopenen_US
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorARCHAMBEAU, Juliette
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBENITO GARZON, Marta
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorDE MIGUEL VEGA, Marina
ORCID: 0000-0001-6398-2660
IDREF: 253126665
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBRACHI, Benjamin
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorBARRAQUAND, Frederic
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGONZALEZ-MARTINEZ, Santiago C.
dc.date.accessioned2024-01-31T15:14:30Z
dc.date.available2024-01-31T15:14:30Z
dc.date.issued2023-11
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/187733
dc.description.abstractEnHow evolutionary forces interact to maintain genetic variation within populations has been a matter of extensive theoretical debates. While mutation and exogenous gene flow increase genetic variation, stabilizing selection and genetic drift are expected to deplete it. To date, levels of genetic variation observed in natural populations are hard to predict without accounting for other processes, such as balancing selection in heterogeneous environments. We aimed to empirically test three hypotheses: (i) admixed populations have higher quantitative genetic variation due to introgression from other gene pools, (ii) quantitative genetic variation is lower in populations from harsher environments (i.e. experiencing stronger selection), and (iii) quantitative genetic variation is higher in populations from heterogeneous environments. Using growth, phenological and functional trait data from three clonal common gardens and 33 populations (522 clones) of maritime pine (Pinus pinaster Aiton), we estimated the association between the population-specific total genetic variances (i.e. among-clone variances) for these traits and ten population-specific indices related to admixture levels (estimated based on 5,165 SNPs), environmental temporal and spatial heterogeneity and climate harshness. Populations experiencing colder winters showed consistently lower genetic variation for early height growth (a fitness-related trait in forest trees) in the three common gardens. Within-population quantitative genetic variation was not associated with environmental heterogeneity or population admixture for any trait. Our results provide empirical support for the potential role of natural selection in reducing genetic variation for early height growth within populations, which indirectly gives insight into the adaptive potential of populations to changing environments.
dc.language.isoENen_US
dc.subject.enAdaptive Potential
dc.subject.enCold Winter Temperatures
dc.subject.enEnvironmental Heterogeneity
dc.subject.enForest Tree
dc.subject.enNatural Selection
dc.subject.enQuantitative Genetic Variation
dc.title.enReduced within-population quantitative genetic variation is associated with climate harshness in maritime pine
dc.typeArticle de revueen_US
dc.identifier.doi10.1038/s41437-023-00622-9en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalHeredityen_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionINRAEen_US
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Heredity&rft.date=2023-11&rft.au=ARCHAMBEAU,%20Juliette&BENITO%20GARZON,%20Marta&DE%20MIGUEL%20VEGA,%20Marina&BRACHI,%20Benjamin&BARRAQUAND,%20Frederic&rft.genre=article


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