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Imprints of natural selection along environmental gradients in phenology-related genes of Quercus petraea

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorALBERTO, Florian
dc.contributor.authorDERORY, Jérémy
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBOURY, Christophe
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorFRIGERIO, Jean-Marc
hal.structure.identifierSwiss Federal Institute for Forest, Snow and Landscape Research WSL
dc.contributor.authorZIMMERMANN, Niklaus E.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorKREMER, Antoine
dc.date.issued2013
dc.identifier.issn0016-6731
dc.description.abstractEnWe explored single nucleotide polymorphism (SNP) variation in candidate genes for bud burst from Quercus petraea populations sampled along gradients of latitude and altitude in Western Europe. SNP diversity was monitored for 106 candidate genes, in 758 individuals from 32 natural populations. We investigated whether SNP variation reflected the clinal pattern of bud burst observed in common garden experiments. We used different methods to detect imprints of natural selection (FST outlier, clinal variation at allelic frequencies, association tests) and compared the results obtained for the two gradients. FST outlier SNPs were found in 15 genes, 5 of which were common to both gradients. The type of selection differed between the two gradients (directional or balancing) for 3 of these 5. Clinal variations were observed for six SNPs, and one cline was conserved across both gradients. Association tests between the phenotypic or breeding values of trees and SNP genotypes identified 14 significant associations, involving 12 genes. The results of outlier detection on the basis of population differentiation or clinal variation were not very consistent with the results of association tests. The discrepancies between these approaches may reflect the different hierarchical levels of selection considered (inter- and intrapopulation selection). Finally, we obtained evidence for convergent selection (similar for gradients) and clinal variation for a few genes, suggesting that comparisons between parallel gradients could be used to screen for major candidate genes responding to natural selection in trees.
dc.language.isoen
dc.publisherOxford University Press
dc.subject.enbud phenology
dc.subject.encandidate genes
dc.subject.enclinal variation
dc.subject.enassociation tests
dc.subject.enQuercus petraea
dc.title.enImprints of natural selection along environmental gradients in phenology-related genes of Quercus petraea
dc.typeArticle de revue
dc.identifier.doi10.1534/genetics.113.153783
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalGenetics
bordeaux.page495-512
bordeaux.volume195
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02649035
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02649035v1
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