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Common microgeographical selection patterns revealed in four European conifers

hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorSCOTTI, Ivan
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorLALAGÜE, Hadrien
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
hal.structure.identifierEcologie Comportementale et Biologie des Populations de Poissons [ECOBIOP]
dc.contributor.authorODDOU-MURATORIO, Sylvie
hal.structure.identifierUniversity of Edinburgh [Edin.]
dc.contributor.authorRUIZ DANIELS, Rose
hal.structure.identifierInstituto Nacional de Investigación Agropecuaria [INIA]
dc.contributor.authorGRIVET, Delphine
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorLEFEVRE, François
hal.structure.identifierDiversité, adaptation, développement des plantes [UMR DIADE]
dc.contributor.authorCUBRY, Philippe
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorFADY, Bruno
hal.structure.identifierCREAF - Centre for Ecological Research and Applied Forestries
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGONZÁLEZ-MARTÍNEZ, Santiago
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorROIG, Anne
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLESUR-KUPIN, Isabelle
hal.structure.identifierIstituto di Bioscienze e BioRisorse [IBBR]
dc.contributor.authorBAGNOLI, Francesca
hal.structure.identifierBiologie intégrée pour la valorisation de la diversité des Arbres et de la Forêt [BioForA]
dc.contributor.authorGUERIN, Vanina
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
hal.structure.identifierBiologie intégrée pour la valorisation de la diversité des Arbres et de la Forêt [BioForA]
dc.contributor.authorROZENBERG, Philippe
hal.structure.identifierNational Research Council of Italy | Consiglio Nazionale delle Ricerche [CNR]
dc.contributor.authorVENDRAMIN, Giovanni
dc.date.issued2023-01
dc.identifier.issn0962-1083
dc.description.abstractEnMicrogeographical adaptation occurs when the effects of directional selection persist despite gene flow. Traits and genetic loci under selection can then show adaptive divergence, against the backdrop of little differentiation at other traits or loci. How common such events are and how strong the selection is that underlies them remain open questions. Here, we discovered and analysed microgeographical patterns of genomic divergence in four European and Mediterranean conifers with widely differing life-history traits and ecological requirements (Abies alba MIll., Cedrus atlantica [Endl.] Manetti, Pinus halepensis Mill. and Pinus pinaster Aiton) by screening pairs from geographically close forest stands sampled along steep ecological gradients. We inferred patterns of genomic divergence by applying a combination of divergence outlier detection methods, demographic modelling, Approximate Bayesian Computation inferences and genomic annotation to genomic data. Surprisingly for such small geographical scales, we showed that selection is strong in all species but generally affects different loci in each. A clear signature of selection was systematically detected on a fraction of the genome, of the order of 0.1%-1% of the loci depending on the species. The novel modelling method we designed for estimating selection coefficients showed that the microgeographical selection coefficient scaled by population size (Ns) was 2-30. Our results convincingly suggest that selection maintains within-population diversity at microgeographical scales in spatially heterogeneous environments. Such genetic diversity is likely to be a major reservoir of adaptive potential, helping populations to adapt under fluctuating environmental conditions.
dc.description.sponsorshipGénétique écologique des arbres forestiers : interactions entre flux de gènes et variabilité environnementale dans la détermination de l'adaptation locale et du potentiel d'adaptation - ANR-12-ADAP-0007
dc.language.isoen
dc.publisherWiley
dc.subject.enadaptive divergence
dc.subject.enforests
dc.subject.enlocal adaptation
dc.subject.enplants
dc.subject.ennatural selection
dc.title.enCommon microgeographical selection patterns revealed in four European conifers
dc.typeArticle de revue
dc.identifier.doi10.1111/mec.16750
dc.subject.halSciences de l'environnement
dc.subject.halSciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire
dc.description.sponsorshipEuropeOptimising the management and sustainable use of forest genetic resources in Europe
bordeaux.journalMolecular Ecology
bordeaux.page393-411
bordeaux.volume32
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-04060643
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04060643v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Molecular%20Ecology&rft.date=2023-01&rft.volume=32&rft.issue=2&rft.spage=393-411&rft.epage=393-411&rft.eissn=0962-1083&rft.issn=0962-1083&rft.au=SCOTTI,%20Ivan&LALAG%C3%9CE,%20Hadrien&ODDOU-MURATORIO,%20Sylvie&RUIZ%20DANIELS,%20Rose&GRIVET,%20Delphine&rft.genre=article


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