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Macro- and micro-geographical genetic variation in early-fitness traits in populations of maritime pine (<i>Pinus pinaster</i>)

hal.structure.identifierCentro de Investigaciones Biológicas [CSIC]
dc.contributor.authorSOLÉ-MEDINA, Aida
hal.structure.identifierAustrian Research and Training Centre for Forests, Natural Hazards and Landscape [ BFW ]
dc.contributor.authorHUREL, Agathe
hal.structure.identifierNational Research Council of Italy | Consiglio Nazionale delle Ricerche [CNR]
dc.contributor.authorAVANZI, Camilla
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGONZALEZ-MARTINEZ, Santiago C.
hal.structure.identifierNational Research Council of Italy | Consiglio Nazionale delle Ricerche [CNR]
dc.contributor.authorVENDRAMIN, Giovanni
hal.structure.identifierNational Research Council of Italy | Consiglio Nazionale delle Ricerche [CNR]
dc.contributor.authorBAGNOLI, Francesca
hal.structure.identifierNational Research Council of Italy | Consiglio Nazionale delle Ricerche [CNR]
dc.contributor.authorPIOTTI, Andrea
hal.structure.identifierNational Research Council of Italy | Consiglio Nazionale delle Ricerche [CNR]
dc.contributor.authorMARCHI, Maurizio
hal.structure.identifierNational Research Council of Italy | Consiglio Nazionale delle Ricerche [CNR]
dc.contributor.authorSPANU, Ilaria
hal.structure.identifierCentro de Investigaciones Biológicas [CSIC]
dc.contributor.authorROBLEDO-ARNUNCIO, Juan
hal.structure.identifierCentro de Investigaciones Biológicas [CSIC]
dc.contributor.authorRAMÍREZ-VALIENTE, José
dc.date.accessioned2025-01-01T03:01:36Z
dc.date.available2025-01-01T03:01:36Z
dc.date.issued2024-12-31
dc.identifier.issn0305-7364
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/204120
dc.description.abstractEn<div><p>Background and Aims Assessing adaptive genetic variation and its spatial distribution is crucial to conserve forest genetic resources and manage species' adaptive potential. Macro-environmental gradients commonly exert divergent selective pressures that enhance adaptive genetic divergence among populations. Steep microenvironmental variation might also result in adaptive divergence at finer spatial scales, even under high gene flow, but it is unclear how often this is the case. Here, we assess genetic variation in early-fitness traits among distant and nearby maritime pine (Pinus pinaster) populations, to investigate climatic factors associated with trait divergence, and to examine trait integration during seedling establishment.</p><p>• Methods Open pollinated seeds were collected from seven population pairs across the European species distribution, with paired populations spatially close (between &lt;1 and 21 km) but environmentally divergent. Seeds were sown in semi-natural conditions at three environmentally contrasting sites, where we monitored seedling emergence, growth and survival.</p><p>• Key Results At large spatial scales, we found significant genetic divergence among populations in all studied traits, with certain traits exhibiting an association with temperature and precipitation gradients. Significant trait divergence was also detected between pairs of nearby populations. In addition, we found consistent trait correlations across experimental sites; notably, heavier seeds and earlier seedling emergence were both associated with higher seedling survival and fitness over two years in all experimental conditions. • Conclusions We identified mean annual temperature and precipitation seasonality as potential drivers of P. pinaster population divergence in the studied early-life traits. Populations genetically diverge also at local spatial scales, potentially suggesting that divergent natural selection can override gene flow along local-scale ecological gradients. These results suggest the species exhibits substantial adaptive potential that has allowed it to survive and evolve under contrasting environmental conditions.</p></div>
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enAdaptive divergence
dc.subject.enclimate adaptation
dc.subject.encommon garden
dc.subject.enemergence
dc.subject.enintraspecific genetic variation
dc.subject.enPinus pinaster
dc.subject.enmicro-geographical variation
dc.subject.enregeneration
dc.title.enMacro- and micro-geographical genetic variation in early-fitness traits in populations of maritime pine (<i>Pinus pinaster</i>)
dc.typeArticle de revue
dc.identifier.doi10.1093/aob/mcae190
dc.subject.halSciences de l'environnement
bordeaux.journalAnnals of Botany
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04860048
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04860048v1
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