CHEN, Jinliang; BEAUVOIT, Bertrand; GÉNARD, Michel; COLOMBIE, Sophie; MOING, Annick; VERCAMBRE, Gilles; GOMÈS, Eric; GIBON, Yves; DAI, Zhanwu

doi:10.1111/nph.17260

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CHEN, Jinliang
Ecophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]

BEAUVOIT, Bertrand
Biologie du fruit et pathologie [BFP]

GÉNARD, Michel
Plantes et systèmes de culture horticoles [PSH]

Langue

Article de revue

Ce document a été publié dans

New Phytologist. 2021, vol. 230, p. 1489-1502

Wiley

Résumé en anglais

The trade-off between yield and quality, a major problem for the production of fleshy fruits, involves fruit expansive growth and sugar metabolism. Here we developed an integrative model by coupling a biophysical model of fleshy fruit growth processes, including water and carbon fluxes and organ expansion, with an enzyme-based kinetic model of sugar metabolism to better understand the interactions between these two processes. The integrative model was initially tested on tomato fruit, a model system for fleshy fruit. The integrative model simulated well the biomass and major carbon metabolites of tomato fruit developing under optimal or stress conditions. The model also performed robustly when simulating the fruit size and sugar concentrations of different tomato genotypes including wild species. The validated model was used to explore ways of uncoupling the size-sweetness trade-off in fruit. Model-based virtual experiments suggested that larger sweeter tomatoes could be obtained by simultaneously manipulating certain biophysical factors and transmembrane transports. The integrative fleshy fruit model provides a promising tool to facilitate targeted bioengineering and breeding of tomatoes and other fruits.< Réduire

Mots clés

Métabolisme

Mots clés en anglais

fruit growth

fruit quality

global sensitivity analysis

metabolic modeling

primary metabolism

virtual experiment

water and carbon flux

Integration

DOI

http://dx.doi.org/10.1111/nph.17260

Project ANR

Modélisation intégrative du fruit pour un système de sélection unifié - ANR-15-CE20-0009
Centre français de phénomique végétale - ANR-11-INBS-0012

Origine

Importé de hal

Unités de recherche

Ecophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287