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X-ray computed tomography to decipher the genetic architecture of tree branching traits: oak as a case study

hal.structure.identifierLaboratoire d'Etudes des Ressources Forêt-Bois [LERFoB]
dc.contributor.authorSONG, Jialin
hal.structure.identifierEcologie et Ecophysiologie Forestières [devient SILVA en 2018] [EEF]
dc.contributor.authorBRENDEL, Oliver
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBODENES-BREZARD, Catherine
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorKREMER, Antoine
hal.structure.identifierLaboratoire d'Etudes des Ressources Forêt-Bois [LERFoB]
dc.contributor.authorCOLIN, Francis
dc.date.issued2017
dc.identifier.issn1614-2942
dc.description.abstractEnA new method for obtaining internal views of tree trunks was recently developed using X-ray computed tomography (CT). This technology makes it possible to observe and measure rameal traces that are left by latent buds, sequential branches, and epicormic branches in the wood. Epicormic branches are undesirable for producing high-value solid wood, especially in Quercus robur, an important hardwood forest tree species in Europe, which is prone to epicormic branches that develop from abundant latent buds. For the very first time, branching-related traits deduced from X-ray CT observation make it possible to analyze the genetic architecture of oak branching through a quantitative trait locus (QTL) analysis. Highly significant QTLs were detected for traits related to latent buds and epicormic branches. The number and effect of these QTLs suggest a moderate genetic determinism for the formation of latent buds and the development of epicormic branches. Three hotspots were found, grouping QTLs for different branching traits. An analysis of the common physiological denominators of these coincident traits suggests that their genetic controls are related to either the regulation of the axillary meristem initiation or to bud dormancy. Conversely, the position of only the separate QTL related to the number of sequential branches suggests an independent genetic control.
dc.description.sponsorshipRecherches Avancées sur l'Arbre et les Ecosytèmes Forestiers - ANR-11-LABX-0002
dc.language.isoen
dc.publisherSpringer Verlag
dc.rights.urihttp://creativecommons.org/licenses/by-sa/
dc.subjecttomodensitométrie
dc.subjectquercus robur
dc.subjectbourgeon latent
dc.subjectqtl
dc.subject.enpedunculate oak
dc.subject.encomputed tomography
dc.subject.enepicormic
dc.subject.enlatent bud
dc.title.enX-ray computed tomography to decipher the genetic architecture of tree branching traits: oak as a case study
dc.typeArticle de revue
dc.identifier.doi10.1007/s11295-016-1083-y
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
bordeaux.journalTree Genetics and Genomes
bordeaux.page1-15
bordeaux.volume13
bordeaux.issue5
bordeaux.peerReviewedoui
hal.identifierhal-01530800
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01530800v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Tree%20Genetics%20and%20Genomes&rft.date=2017&rft.volume=13&rft.issue=5&rft.spage=1-15&rft.epage=1-15&rft.eissn=1614-2942&rft.issn=1614-2942&rft.au=SONG,%20Jialin&BRENDEL,%20Oliver&BODENES-BREZARD,%20Catherine&PLOMION,%20Christophe&KREMER,%20Antoine&rft.genre=article


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