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Heritability and genetic architecture of reproduction-related traits in a temperate oak species

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCAIGNARD, Thomas
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBODENES, Catherine
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDENCAUSSE, Benjamin
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorKREMER, Antoine
dc.date.issued2019
dc.identifier.issn1614-2942
dc.description.abstractEnReproduction, one of the main components of plant fitness, is highly variable in response to environmental cues, but little is known about the genetic determinism underlying reproduction-related traits in forest tree species. There is therefore an urgent need to characterize the genetic architecture of those traits if we are to predict the evolutionary trajectories of forest populations facing rapidly changing environment and mitigate their impacts. Using a full-sib family of pedunculate oak (Quercus robur), we investigated the within population variability of seed production and mean seed mass during four consecutive years. Reproductive traits were highly variable between trees and between years. The high narrow sense heritability and evolvability estimated underline the important genetic effect on the variability in seed production and mean seed mass. Despite a large variability over years, reproductive traits show significant genetic correlation between years. Furthermore, for the first time in forest tree species, quantitative trait loci (QTLs) associated with seed production and mean mass of a seed have been identified. While it is commonly assumed and observed that fitness traits have low narrow sense heritabilities, our findings show that reproduction-related traits may undergo evolutionary changes under selective pressure and may be determinant for tree adaptation.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subjectQTLs
dc.subjectquercus robur
dc.subject.entree reproduction
dc.subject.enseed production
dc.subject.enfitness
dc.subject.enheritability
dc.title.enHeritability and genetic architecture of reproduction-related traits in a temperate oak species
dc.typeArticle de revue
dc.identifier.doi10.1007/s11295-018-1309-2
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalTree Genetics and Genomes
bordeaux.page1-12
bordeaux.volume15
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02625652
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02625652v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Tree%20Genetics%20and%20Genomes&rft.date=2019&rft.volume=15&rft.issue=1&rft.spage=1-12&rft.epage=1-12&rft.eissn=1614-2942&rft.issn=1614-2942&rft.au=CAIGNARD,%20Thomas&DELZON,%20Sylvain&BODENES,%20Catherine&DENCAUSSE,%20Benjamin&KREMER,%20Antoine&rft.genre=article


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