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Relict stands of Central European oaks: Unravelling autochthony and genetic structure based on a multi-population study

hal.structure.identifierUniversität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
hal.structure.identifierForest Research Institute of Baden-Württemberg = Forstliche Versuchs- und Forschungsanstalt Baden-Württemberg [FVA]
dc.contributor.authorNEOPHYTOU, Charalambos
hal.structure.identifierForest Research Institute of Baden-Württemberg = Forstliche Versuchs- und Forschungsanstalt Baden-Württemberg [FVA]
dc.contributor.authorSEMIZER-CUMING, Devrim
hal.structure.identifierForest Research Institute of Baden-Württemberg = Forstliche Versuchs- und Forschungsanstalt Baden-Württemberg [FVA]
dc.contributor.authorMICHIELS, Hans-Gerhard
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorKREMER, Antoine
hal.structure.identifierUniversität für Bodenkultur Wien = University of Natural Resources and Life Sciences [Vienne, Autriche] [BOKU]
dc.contributor.authorJANSEN, Simon
dc.contributor.authorFUSSI, Barbara
dc.date.accessioned2024-07-11T02:01:34Z
dc.date.available2024-07-11T02:01:34Z
dc.date.issued2024-01
dc.identifier.issn0378-1127
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/200822
dc.description.abstractEnCentral European white oaks expanded rapidly after the last glacial period and reached their current distribution range during the early Holocene. They have been an important resource of timber, fuelwood and animal feed for humans, who actively promoted their presence in forests and other landscape types at least since the early historical times. Besides stands with intensive management, putatively relict populations of three native oak species can be found on unproductive sites with restricted accessibility. Here, we apply chloroplast and nuclear microsatellite markers in order to address the autochthony of relict and managed stands and compare the spatial distribution of genetic variation between them. Based on data from more than 150 populations, we demonstrate that oak autochthony was preserved throughout historical times which is likely the result of traditional silvicultural treatment. This is supported by the fact that the spatial pattern of chloroplast haplotype distribution still reflects the post-glacial recolonization in both relict and old managed stands. We observed significant admixture of haplotypes only in stands established after the Second World War, which is attributable to the transfer of reproductive material used for afforestation. In terms of nuclear genetic variation, we observed marked differences among species. Quercus pubescens exhibited a pronounced genetic structure. Genetic drift and limited gene flow among its small and isolated populations in our study area might have contributed to this pattern. Varying extent of genetic introgression with other sympatric oak species could offer an additional explanation. On the contrary, the gene pools of Q. petraea and Q. robur are highly homogenous, displaying only weak isolation-by-distance. We found no significant differences of genetic diversity and differentiation between relict and managed stands. This suggests that seed transfer mostly occurred within our study area, even in those stands established in post-war times, verifying previous findings which point out limited human interference. We recommend consideration of population genetic structure for gene conservation, with a finer resolution of gene conservation units needed for Q. pubescens due to its spatial genetic structure. Both relict and old managed stands, species-pure or mixed, are suitable for conservation, as they host autochthonous gene pools. Coppice-with-standard management could contribute to preservation of autochthony. In the face of climate change, it is also important to maintain the evolutionary potential of the stands, by facilitating generative reproduction and allowing for hybridization in mixed stands.
dc.language.isoen
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/
dc.subject.enQuercus petraea
dc.subject.enQuercus pubescens
dc.subject.enQuercus robur
dc.subject.enMicrosatellites
dc.subject.enGenetic diversity
dc.subject.enGene conservation
dc.title.enRelict stands of Central European oaks: Unravelling autochthony and genetic structure based on a multi-population study
dc.typeArticle de revue
dc.identifier.doi10.1016/j.foreco.2023.121554
dc.subject.halSciences de l'environnement
bordeaux.journalForest Ecology and Management
bordeaux.page121554
bordeaux.volume551
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04642946
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04642946v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Forest%20Ecology%20and%20Management&rft.date=2024-01&rft.volume=551&rft.spage=121554&rft.epage=121554&rft.eissn=0378-1127&rft.issn=0378-1127&rft.au=NEOPHYTOU,%20Charalambos&SEMIZER-CUMING,%20Devrim&MICHIELS,%20Hans-Gerhard&KREMER,%20Antoine&JANSEN,%20Simon&rft.genre=article


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