Afficher la notice abrégée

Population genetic structure and demographic history of the timber tree Dicorynia guianensis in French Guiana

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorBONNIER, Julien
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorTYSKLIND, Niklas
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorTROISPOUX, Valérie
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorSCOTTI, Ivan
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorBARTHE, Stéphanie
hal.structure.identifierOffice national des forêts [ONF]
dc.contributor.authorBRUNAUX, Olivier
hal.structure.identifierInstitut National de l'Information Géographique et Forestière [IGN] [IGN]
dc.contributor.authorGUITET, Stéphane
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorTRAISSAC, Stéphane
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorHEUERTZ, Myriam
dc.date.issued2024
dc.identifier.issn1614-2942
dc.description.abstractEnTropical rainforests host exceptional biodiversity and provide important ecosystem services, but they are facing anthropogenic and climatic threats. Preserving the genetic diversity of forest tree populations is essential for their capacity to adapt and exhibit resilience to environmental changes and anthropogenic pressures. Here, we collected conservation genetic base line information for the heavily exploited timber tree Dicorynia guianensis Amshoff (Fabaceae) at the regional and local levels in French Guiana. Based on genotyping at five microsatellite loci in 1566 individuals collected in 23 forest locations,we documented the genetic differentiation of locations from the West of French Guiana and identified distinctive genetic diversity patterns with higher genetic diversity and some bottlenecked sites in the East and inland. The regional populationgenetic structure is likely the result of past population isolation in distinct Pleistocene refuges and different demographic histories potentially influenced by Holocene drought periods or palaeofires. Assessment of spatial genetic structure (Sp from 0 to 0.028) in five intensively sampled locations yielded estimates of Wright’s neighborhood size of 35 to 313, indicative of restricted dispersal and local metapopulation dynamics, and useful as baseline information to assess the effects of selective logging for conservation management. These results support the current management strategies with low impact extraction of D. guianensis in three zones of the French Guiana permanent forest domain and allow us to make recommendations for further research and management to best preserve its genetic diversity and adaptive potential.
dc.description.sponsorshipCEnter of the study of Biodiversity in Amazonia
dc.language.isoen
dc.publisherSpringer Verlag
dc.subject.enTropical tree
dc.subject.enMicrosatellites
dc.subject.enGenetic diversity
dc.subject.enNeighborhood size
dc.subject.enConservation
dc.subject.enDicorynia guianensis
dc.title.enPopulation genetic structure and demographic history of the timber tree Dicorynia guianensis in French Guiana
dc.typeArticle de revue
dc.identifier.doi10.1007/s11295-023-01633-7
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles/Sylviculture, foresterie
bordeaux.journalTree Genetics and Genomes
bordeaux.page2
bordeaux.volume20
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-04481636
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04481636v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Tree%20Genetics%20and%20Genomes&rft.date=2024&rft.volume=20&rft.issue=2&rft.spage=2&rft.epage=2&rft.eissn=1614-2942&rft.issn=1614-2942&rft.au=BONNIER,%20Julien&TYSKLIND,%20Niklas&TROISPOUX,%20Val%C3%A9rie&SCOTTI,%20Ivan&BARTHE,%20St%C3%A9phanie&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée