Regulation of climacteric fruit ripening in melon : recent advances and future challenges
Pujol Abajo, Marta (Centre de Recerca en Agrigenòmica)
Garcia-Mas, Jordi (Centre de Recerca en Agrigenòmica)

Data:	2023
Resum:	Fruit ripening is a complex and highly regulated process where tomato and strawberry have been the model species classically used for studying climacteric and non-climacteric fleshy fruit ripening types, respectively. Melon has emerged as an alternative ripening model because climacteric and non-climacteric cultivars exist, which makes it possible to dissect the regulation of ripening using a genetic approach. Several quantitative trait loci that regulate climacteric fruit ripening have been identified to date, and their combination in both climacteric and non-climacteric genetic backgrounds resulted in lines with different ripening behaviors, demonstrating that the climacteric intensity can be genetically modulated. This review discusses our current knowledge of the physiological changes observed during melon climacteric fruit ripening such as ethylene production, fruit abscission, chlorophyll degradation, firmness, and aroma, as well as their complex genetic control. From pioneer experiments in which ethylene biosynthesis was silenced, to the recent genetic edition of ripening regulators, current data suggest that the climacteric response is determined by the interaction of several loci under quantitative inheritance. The exploitation of the rich genetic diversity of melon will enable the discovery of additional genes involved in the regulation of the climacteric response, ultimately leading to breeding aromatic melon fruits with extended shelf life.
Ajuts:	Agencia Estatal de Investigación PID2021-125998OB-C21 Agencia Estatal de Investigación TED2021-131955B-I00 Agencia Estatal de Investigación CEX2019-000902-S Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00075
Nota:	Altres ajuts: CERCA Programme/Generalitat de Catalunya
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Llengua:	Anglès
Document:	Article de revisió ; recerca ; Versió acceptada per publicar
Matèria:	CRISPR ; Cucurbits ; Ethylene ; Fruit ripening ; Genetic regulation ; Melon ; QTL ; VOCs
Publicat a:	Journal of experimental botany, Vol. 74, Issue 20 (October 2023) , p. 6224-6236, ISSN 1460-2431

DOI: 10.1093/jxb/erad256

Postprint 33 p, 1.8 MB

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