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Normes de réaction chez le pin maritime

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPAPIN, Victor
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBOUFFIER, Laurent
hal.structure.identifierBiologie intégrée pour la valorisation de la diversité des Arbres et de la Forêt [BioForA]
dc.contributor.authorSANCHEZ, Leopoldo
dc.date.issued2022-06-20
dc.date.conference2022-06-20
dc.description.abstractEnGenomic selection in forest tree breeding opens up new opportunities for accelerating selection cycles, for improving selection accuracy and for integrating explicit diversity management. Traits targeted by forest breeding programs are mostly final performances of the trees (height, circumference). However, such phenotypes are very integrative: the final performances are the results of multiple years of growth in interaction with an evolving environment. To tackle these interactions and to propose new breeding strategies including an environmental information, we model individual reaction norms using random regression models for maritime pine. We used wood ring traits describing trees growth and response to past environmental conditions and we related them with annual environmental indexes. The data came from two experimental trials located in the Landes forest in France. From 25 half-sib families, a total of 650 individuals aged of 26-years-old have been cored and genotyped using the 4TREE array. Random regression models allowed us to extract genetic parameters related to tree growth regarding several climatic indexes. We investigated the evolution of genetic parameters including breeding values in order to (i) understand the evolution of the genetic control of growth, (ii) to identify environmental variables responsible for differential responses in trees, and (iii) to propose new selection criteria taking into account the environmental information. For the last point, we aim to identify differentiated response curves of genetic values and to predict performances in unobserved environments.
dc.language.isoen
dc.rights.urihttp://hal.archives-ouvertes.fr/licences/publicDomain/
dc.subject.enReaction norms
dc.subject.enPhenotypic plasiticity
dc.subject.enBreeding program
dc.titleNormes de réaction chez le pin maritime
dc.title.enNorms of reaction for maritime pine
dc.typeCommunication dans un congrès
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale/Amélioration des plantes
dc.subject.halPhysique [physics]/Physique [physics]/Analyse de données, Statistiques et Probabilités [physics.data-an]
dc.subject.halSciences du Vivant [q-bio]/Génétique/Génétique des plantes
dc.description.sponsorshipEuropeAdaptive BREEDING for productive, sustainable and resilient FORESTs under climate change
bordeaux.conference.titleFinal B4EST Conference: Accelerating breeding to cope with new challenges and uncertain future
bordeaux.countryPT
bordeaux.conference.cityLisbon
bordeaux.peerReviewedoui
hal.identifierhal-04511414
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.organizerB4EST
hal.conference.end2022-06-23
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04511414v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.title=Normes%20de%20r%C3%A9action%20chez%20le%20pin%20maritime&rft.atitle=Normes%20de%20r%C3%A9action%20chez%20le%20pin%20maritime&rft.date=2022-06-20&rft.au=PAPIN,%20Victor&BOUFFIER,%20Laurent&SANCHEZ,%20Leopoldo&rft.genre=unknown


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