AZZI, Lamia; DELUCHE, Cynthia; GEVAUDANT, Frederic; FRANGNE, Nathalie; DELMAS, Frédéric; HERNOULD, Michel; CHEVALIER, Christian

doi:10.1093/jxb/eru527

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AZZI, Lamia
Biologie du fruit et pathologie [BFP]

DELUCHE, Cynthia
Biologie du fruit et pathologie [BFP]

GEVAUDANT, Frederic
Biologie du fruit et pathologie [BFP]

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Article de revue

Ce document a été publié dans

Journal of Experimental Botany. 2015, vol. 66, n° 4, p. 1075-86

Oxford University Press (OUP)

Résumé en anglais

Tomato (Solanum lycopersicum Mill.) represents a model species for all fleshy fruits due to its biological cycle and the availability of numerous genetic and molecular resources. Its importance in human nutrition has made it one of the most valuable worldwide commodities. Tomato fruit size results from the combination of cell number and cell size, which are determined by both cell division and expansion. As fruit growth is mainly driven by cell expansion, cells from the (fleshy) pericarp tissue become highly polyploid according to the endoreduplication process, reaching a DNA content rarely encountered in other plant species (between 2C and 512C). Both cell division and cell expansion are under the control of complex interactions between hormone signalling and carbon partitioning, which establish crucial determinants of the quality of ripe fruit, such as the final size, weight, and shape, and organoleptic and nutritional traits. This review describes the genes known to contribute to fruit growth in tomato.< Réduire

Mots clés

Cell cycle

cell division

cell expansion

fruit

Mots clés en anglais

development

endoreduplication

genetic control

growth

hormones

metabolic control

tomato.