SCHMITT, Sylvain; HEURET, Patrick; TROISPOUX, Valérie; BERAUD, Mélanie; CAZAL, Jocelyn; CHANCEREL, Émilie; CRAVERO, Charlotte; GUICHOUX, Erwan; LEPAIS, Olivier; LOUREIRO, João; MARANDE, William; MARTIN-DUCUP, Olivier; VINCENT, Gregoire; CHAVE, Jérôme; PLOMION, Christophe; LEROY, Thibault; HEUERTZ, Myriam; TYSKLIND, Niklas

doi:10.1073/pnas.2313312121

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http://creativecommons.org/licenses/by-nc-nd/

SCHMITT, Sylvain
Ecologie des forêts de Guyane [UMR ECOFOG]
Forêts et Sociétés [UPR Forêts et Sociétés]
Département Environnements et Sociétés [Cirad-ES]

HEURET, Patrick
Botanique et Modélisation de l'Architecture des Plantes et des Végétations [UMR AMAP]

TROISPOUX, Valérie
Ecologie des forêts de Guyane [UMR ECOFOG]

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Ce document a été publié dans

Proceedings of the National Academy of Sciences of the United States of America. 2024-02-27, vol. 121

National Academy of Sciences

Résumé en anglais

Significance The origin and fate of new mutations have received less attention in plants than in animals. Similarly to animals, plant mutations are expected to accumulate with growth and time and under exposure to ultraviolet light. However, contrary to animals, plant reproductive organs form late in an individual's development, allowing the transmission to the progeny of mutations accumulated along growth. Here, we resequenced DNA from different branches differentially exposed to sunlight of two tropical tree species. We showed that new mutations are generally rare in plant tissues and do not mimic branching patterns but can nevertheless be transmitted to the progeny. Our findings provide a perspective on heritable plant mutation and its pivotal role as the engine of evolution.< Réduire

Mots clés en anglais

Somatic mutations

Tree crown

Mutation transmission

French guiana

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Low-frequency somatic mutations are heritable in tropical trees Dicorynia guianensis and Sextonia rubra

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Résumé en anglais

Mots clés en anglais

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