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Plant mutations: slaying beautiful hypotheses by surprising evidence

hal.structure.identifierSchool of Biological Sciences [Bangor]
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorTYSKLIND, Niklas
hal.structure.identifierBotanique et Modélisation de l'Architecture des Plantes et des Végétations [UMR AMAP]
dc.contributor.authorSCHMITT, Sylvain
hal.structure.identifierBotanique et Modélisation de l'Architecture des Plantes et des Végétations [UMR AMAP]
dc.contributor.authorHEURET, Patrick
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorTROISPOUX, Valérie
hal.structure.identifierInstitut de Biologie François JACOB [JACOB]
dc.contributor.authorBERAUD, Mélanie
hal.structure.identifierEcologie des forêts de Guyane [UMR ECOFOG]
dc.contributor.authorCAZAL, Jocelyn
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCHANCEREL, Emilie
hal.structure.identifierCentre National de Ressources Génomiques Végétales [CNRGV]
dc.contributor.authorCRAVERO, Charlotte
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGUICHOUX, Erwan
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLEPAIS, Olivier
dc.contributor.authorLOUREIRO, João
hal.structure.identifierCentre National de Ressources Génomiques Végétales [CNRGV]
dc.contributor.authorMARANDE, William
hal.structure.identifierEcologie des Forêts Méditerranéennes [URFM]
dc.contributor.authorMARTIN-DUCUP, Olivier
hal.structure.identifierBotanique et Modélisation de l'Architecture des Plantes et des Végétations [UMR AMAP]
dc.contributor.authorVINCENT, Grégoire
hal.structure.identifierEvolution et Diversité Biologique [EDB]
dc.contributor.authorCHAVE, Jérôme
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
hal.structure.identifierGénétique Physiologie et Systèmes d'Elevage [GenPhySE]
dc.contributor.authorLEROY, Thibault
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorHEUERTZ, Myriam
dc.date.issued2023-09-13
dc.date.conference2023-09-12
dc.description.abstractEnMutation is the source of all genetic diversity, on which selection can act allowing adaptation. Early differentiation between soma and the germline in animal development protects the germline, and thus the offspring, from the accumulation of somatic mutations. In plants, somatic mutations are expected to occur and accumulate along the branches and the differentiation between soma and germline is debated. There are several predictions on the fate of somatic mutations occurring in plant tissues: exposure to UV radiation increases mutagenesis; mutations have generally low frequency in plant tissues; branching topology of the tree dictates mutation distribution; and mutations at high frequency have a higher chance of being transmitted to the next generation. We produced a unique plant dataset of 60 highcoverage whole-genome sequences of two tropical tree species (Dicorynia guianensis and Sextonia rubra) and identified 18,274 de novo somatic mutations on branches exposed to high and low light, almost all at low frequency in tissues. We demonstrate that: 1) mutation rates and mutation spectra are not demonstrably affected by differences in UV exposure; 2) mutation phylogenies deviate from the branching topology of the tree; and 3) low-frequency mutations are transmitted to the next generation. Altogether, our results suggest far more complex links between plant growth, ageing, UV exposure, and mutation rates than commonly thought. Specially, the transmissibility of low frequency mutations, which are the most abundant, indicates a non-negligible role of low frequency somatic mutations as heritable mutations fuelling plant evolution.
dc.language.isoen
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.source.titleBook of Abstracts
dc.subject.enMutation
dc.subject.enPlant evolution
dc.title.enPlant mutations: slaying beautiful hypotheses by surprising evidence
dc.typeCommunication dans un congrès
dc.identifier.doi10.31926/evoltree.2023
dc.subject.halSciences du Vivant [q-bio]/Génétique/Génétique des plantes
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
dc.subject.halSciences du Vivant [q-bio]/Biodiversité/Evolution [q-bio.PE]
bordeaux.conference.titleEVOLTREE Conference 2023 - Resilient Forests for the Future
bordeaux.countryRO
bordeaux.title.proceedingBook of Abstracts
bordeaux.conference.cityBrasov
bordeaux.peerReviewednon
hal.identifierhal-04664198
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.organizerUNITBV, Brașov, Romania
hal.conference.end2023-09-15
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04664198v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=Book%20of%20Abstracts&rft.date=2023-09-13&rft.au=TYSKLIND,%20Niklas&SCHMITT,%20Sylvain&HEURET,%20Patrick&TROISPOUX,%20Val%C3%A9rie&BERAUD,%20M%C3%A9lanie&rft.genre=unknown


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