Elucidating the functional role of endoreduplication in tomato fruit development

Autor: Elodie Mathieu-Rivet, Mehdi Nafati, Jean-Pierre Renaudin, Matthieu Bourdon, Michel Hernould, Nathalie Frangne, Frédéric Gévaudant, Catherine Cheniclet, Christian Chevalier
Přispěvatelé: Biologie du fruit et pathologie (BFP), Université Sciences et Technologies - Bordeaux 1-Université Bordeaux Segalen - Bordeaux 2-Institut National de la Recherche Agronomique (INRA), Biologie du Fruit, Institut National de la Recherche Agronomique (INRA)-Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1, Université Bordeaux Segalen - Bordeaux 2-Institut National de la Recherche Agronomique (INRA)-Université Sciences et Technologies - Bordeaux 1
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Annals of Botany
Annals of Botany, Oxford University Press (OUP), 2011, 107 (7), pp.1159-1169. ⟨10.1093/aob/mcr113⟩
Annals of Botany, Oxford University Press (OUP), 2011, 107 (7), pp.1159-1169. ⟨10.1093/aob/mcq257⟩
ISSN: 0305-7364
1095-8290
DOI: 10.1093/aob/mcr113⟩
Popis: Publication Inra prise en compte dans l'analyse bibliométrique des publications scientifiques mondiales sur les Fruits, les Légumes et la Pomme de terre. Période 2000-2012. http://prodinra.inra.fr/record/256699; International audience; Background Endoreduplication is the major source of endopolyploidy in higher plants. The process of endoreduplication results from the ability of cells to modify their classical cell cycle into a partial cell cycle where DNA synthesis occurs independently from mitosis. Despite the ubiquitous occurrence of the phenomenon in eukaryotic cells, the physiological meaning of endoreduplication remains vague,although several roles during plant development have been proposed, mostly related to cell differentiation and cell size determination. Scope Here recent advances in the knowledge of endoreduplication and fruit organogenesis are reviewed, focusing on tomato (Solanum lycopersicum) as a model, and the functional analyses of endoreduplication-associated regulatory genes in tomato fruit are described. Conclusions The cyclin-dependent kinase inhibitory kinase WEE1 and the anaphase promoting complex activator CCS52A both participate in the control of cell size and the endoreduplication process driving cell expansion during early fruit development in tomato. Moreover the fruit-specific functional analysis of the tomato CDK inhibitor KRP1 reveals that cell size and fruit size determination can be uncoupled from DNA ploidy levels, indicating that endoreduplication acts rather as a limiting factor for cell growth. The overall functional data contribute to unravelling the physiological role of endoreduplication in growth induction of fleshy fruits.
Databáze: OpenAIRE