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Low level of pollen-mediated gene flow from cultivated to wild hrapevine: vonsequences for the rvolution of the rndangered subspecies Vitis vinifera L. subsp silvestris

hal.structure.identifierUniversità degli studi di Verona = University of Verona [UNIVR]
dc.contributor.authorDI VECCHI-STARAZ, Manuel
hal.structure.identifierDiversité et adaptation des plantes cultivées [UMR DIAPC]
dc.contributor.authorLAUCOU, Valerie
hal.structure.identifierDiversité et adaptation des plantes cultivées [UMR DIAPC]
dc.contributor.authorBRUNO, Gérard
hal.structure.identifierDiversité et adaptation des plantes cultivées [UMR DIAPC]
dc.contributor.authorLACOMBE, Thierry
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGERBER, Sophie
hal.structure.identifierDiversité et adaptation des plantes cultivées [UMR DIAPC]
dc.contributor.authorBOURSE, Thibaut
hal.structure.identifierUniversità degli studi di Verona = University of Verona [UNIVR]
dc.contributor.authorBOSELLI, Maurizio
hal.structure.identifierDiversité et adaptation des plantes cultivées [UMR DIAPC]
dc.contributor.authorTHIS, Patrice
dc.date.issued2009
dc.identifier.issn0022-1503
dc.description.abstractEnA parentage and a paternity-based approach were tested for estimation of pollen-mediated gene flow in wild grapevine (Vitis vinifera L. subsp. silvestris), a wind-pollinated species occurring in Mediterranean Europe and southwestern Asia. For this purpose, 305 seedlings collected in 2 years at 2 locations in France from 4 wild female individuals and 417 wild individuals prospected from France and Italy were analyzed using 20 highly polymorphic microsatellite loci. Their profiles were compared with a database consisting of 3203 accessions from the Institut National de la Recherche Agronomique Vassal collection including cultivars, rootstocks, interspecific hybrids, and other wild individuals. Paternity was assigned for 202 (66.2%) of the 305 seedlings, confirming the feasibility of the method. Most of the fertilizing pollen could be assigned to wild males growing nearby. Estimates of pollen immigration from the cultivated compartment (i.e., the totality of cultivars) ranged from 4.2% to 26% from nearby vineyards and from hidden pollinators such as cultivars and rootstocks that had escaped from farms. In an open landscape, the pollen flow was correlated to the distance between individuals, the main pollinator being the closest wild male (accounting for 51.4-86.2% of the pollen flow). In a closed landscape, more complex pollination occurred. Analysis of the parentage of the 417 wild individuals also revealed relationships between nearby wild individuals, but in the case of 12 individuals (3%), analysis revealed pollen immigration from vineyards, confirming the fitness of the hybrid seedlings. These pollen fluxes may have a significant effect on the evolution of wild populations: on the one hand, the low level of pollen-mediated gene flow from cultivated to wild grapevine could contribute to a risk of extinction of the wild compartment (i.e., the totality of the wild individuals). On the other hand, pollen dispersal within the wild populations may induce inbreeding depression of wild grapevines
dc.language.isoen
dc.publisherOxford University Press (OUP)
dc.subjectTRANSGENIC PLANT
dc.subject.enPOLLEN DISPERSAL
dc.subject.enROOTSTOCK
dc.subject.enSEEDLING
dc.subject.enTRUE-TO-TYPE
dc.subject.enPATERNITY ANALYSIS
dc.title.enLow level of pollen-mediated gene flow from cultivated to wild hrapevine: vonsequences for the rvolution of the rndangered subspecies Vitis vinifera L. subsp silvestris
dc.typeArticle de revue
dc.identifier.doi10.1093/jhered/esn084
dc.subject.halSciences du Vivant [q-bio]/Génétique
bordeaux.journalJournal of Heredity
bordeaux.page66-75
bordeaux.volume100
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02667587
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02667587v1
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