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Genetically depauperate but widespread: the case of an emblematic mediterranean pine

hal.structure.identifierIstituto di Genetica vegetale
dc.contributor.authorVENDRAMIN, Giovanni G.
hal.structure.identifierUnité de Recherches Forestières Méditerranéennes [URFM]
dc.contributor.authorFADY, Bruno
hal.structure.identifierDepartamento de Sistemas y Recursos forestales
dc.contributor.authorGONZALEZ-MARTINEZ, Santiago C.
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorHU, Feng Sheng
hal.structure.identifierEcologie des forêts de Guyane [ECOFOG]
dc.contributor.authorSCOTTI, Ivan
hal.structure.identifierDipartimento di Biotecnologie agrarie, Genexpress
dc.contributor.authorSEBASTIANI, Federico
hal.structure.identifierUnidad de Anatomia, Fisiologia y Genetica forestal
dc.contributor.authorSOTO, Alvaro
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPETIT, Remy
dc.date.issued2008
dc.identifier.issn0014-3820
dc.description.abstractEnGenetic variation is generally considered a prerequisite for adaptation to new environmental conditions. Thus the discovery of genetically depauperate but geographically widespread species is unexpected. We used 12 paternally inherited chloroplast microsatellites to estimate population genetic variation across the full range of an emblematic circum-Mediterranean conifer, stone pine (Pinus pinea L.). The same chloroplast DNA haplotype is fixed in nearly all of the 34 investigated populations. Such a low level of variation is consistent with a previous report of very low levels of diversity at nuclear loci in this species. Stone pine appears to have passed through a severe and prolonged demographic bottleneck, followed by subsequent natural- and human-mediated dispersal across the Mediterranean Basin. No other abundant and widespread plant species has as little genetic diversity as P. pinea at both chloroplast and nuclear markers. However, the species harbors a nonnegligible amount of variation at adaptive traits. Thus a causal relationship between genetic diversity, as measured by marker loci, and the evolutionary precariousness of a species, cannot be taken for granted
dc.language.isoen
dc.publisherWiley
dc.subject.enCHLOROPLAST MICROSATELLITES
dc.subject.enCONSERVATION GENETICS
dc.subject.enDIVERSITY DEPLETION
dc.subject.enHUMAN IMPACT
dc.subject.enGENETIC DIVERSITY
dc.subject.enPINUS PINEA
dc.subject.enPIN PARASOL
dc.title.enGenetically depauperate but widespread: the case of an emblematic mediterranean pine
dc.typeArticle de revue
dc.identifier.doi10.1111/j.1558-5646.2007.00294.x
dc.subject.halSciences du Vivant [q-bio]/Biodiversité/Evolution [q-bio.PE]
bordeaux.journalEvolution - International Journal of Organic Evolution
bordeaux.page680-688
bordeaux.volume62
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-01032062
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01032062v1
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