Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

A common genetic basis to the origin of the leaf economics spectrum and metabolic scaling allometry

Abstract : Many facets of plant form and function are reflected in general cross-taxa scaling relationships. Metabolic scaling theory (MST) and the leaf economics spectrum (LES) have each proposed unifying frameworks and organisational principles to understand the origin of botanical diversity. Here, we test the evolutionary assumptions of MST and the LES using a cross of two genetic variants of Arabidopsis thaliana. We show that there is enough genetic variation to generate a large fraction of variation in the LES and MST scaling functions. The progeny sharing the parental, naturally occurring, allelic combinations at two pleiotropic genes exhibited the theorised optimum 3/4 allometric scaling of growth rate and intermediate leaf economics. Our findings: (1) imply that a few pleiotropic genes underlie many plant functional traits and life histories; (2) unify MST and LES within a common genetic framework and (3) suggest that observed intermediate size and longevity in natural populations originate from stabilising selection to optimise physiological trade-offs.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal.inrae.fr/hal-02651649
Déposant : Migration Prodinra <>
Soumis le : vendredi 29 mai 2020 - 17:06:07
Dernière modification le : lundi 30 novembre 2020 - 09:52:30

Lien texte intégral

Identifiants

Citation

François Vasseur, C. Violle, B.J. Enquist, Christine Granier, Denis Vile. A common genetic basis to the origin of the leaf economics spectrum and metabolic scaling allometry. Ecology Letters, Wiley, 2012, 15 (10), pp.1149-1157. ⟨10.1111/j.1461-0248.2012.01839.x⟩. ⟨hal-02651649⟩

Partager

Métriques

Consultations de la notice

25