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Genetic Structure of a Natural Oak Community in Central Italy: Evidence of Gene Flow between Three Sympatric White Oak Species (Quercus, Fagaceae)

dc.contributor.authorANTONECCHIA, Gaby
dc.contributor.authorFORTINI, Paola
hal.structure.identifierEcologie Comportementale et Biologie des Populations de Poissons [ECOBIOP]
dc.contributor.authorLEPAIS, Olivier
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGERBER, Sophie
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLEGÉR, Patrick
hal.structure.identifierDepartment of Bioscienze and Territorio
dc.contributor.authorSCIPPA, Gabriella Stefania
dc.contributor.authorVISCOSI, Vincenzo
dc.date.issued2015
dc.description.abstractEnIncomplete reproductive barriers between species, especially in sympatric areas where several species coexist, may result in hybridization and an increase in genetic diversity. Here we assessed the amount of genetic diversity in a community of three interfertile and sympatric European oaks (Quercus frainetto Ten., Q. petraea Liebl. Matt. and Q. pubescens Willd.) situated in central Italy. We used 11 microsatellite markers derived from Expressed Sequence Tag (EST-SSRs) and we implemented a Bayesian clustering analysis to assign individuals to species or hybrids. All genotyped loci were polymorphic for all the species and three genetic clusters corresponding to each species were detected. Significant differences and a higher level of gene flow were observed between the three oak species. Occurrence of hybrids varied markedly within the studied area: hybrids between Q. petraea and Q, pubescens were the most frequent, while hybrids between Q. petraea and Q. frainetto were particularly rare. Q. pubescens and Q. petraea showed the highest number of alleles compared to Q. frainetto, which was characterized by a low number of private, but highly frequent, alleles. However, Q. frainetto showed a lower genetic diversity and a stronger reproductive isolation from the other two oak species.
dc.language.isoen
dc.publisher"Marin Drăcea" National Research-Development Institute in Forestry - Bucharest, Romania
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enNo keyword
dc.title.enGenetic Structure of a Natural Oak Community in Central Italy: Evidence of Gene Flow between Three Sympatric White Oak Species (Quercus, Fagaceae)
dc.typeArticle de revue
dc.identifier.doi10.15287/afr.2015.415
dc.subject.halSciences du Vivant [q-bio]/Biologie animale
bordeaux.journalAnnals of Forest Research
bordeaux.page205-216-216
bordeaux.volume58
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02139663
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02139663v1
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