ISHS Acta Horticulturae 510: VII Eucarpia Meeting on Cucurbit Genetics and Breeding
ETHYLENE-REGULATED GENES AND CLARIFICATION OF THE ROLE OF ETHYLENE IN THE REGULATION OF RIPENING AND QUALITY IN CANTALOUPE MELON FRUIT |
| Authors: | J. Lelièvre, M. Amor, B. Flores, M. Gomez, F. El-Yahyaoui, C. Chatenet, C. Périn, Jose A. Hernandez, F. Romojaro, A. Latché, M. Bouzayen, M. Pitrat, C. Dogimont, J. Pech |
| Keywords: | aroma volatiles, Charentais melons, Cucumis melo, climacteric character, fruit ripening, gene expression |
| Abstract:
Ethylene plays a major role in the ripening of climacteric fruit such as melons (Cucumis melo) of the cantaloupensis group. However, the importance of other modes of regulation is emerging and demonstrates the interplay between ethylene-dependent and ethylene-independent events during ripening, including at the molecular level. Inhibition of ethylene production in transgenic cantaloupe fruit has helped us isolate ethylene-regulated genes such as those involved in aroma synthesis and to understand the precise role of ethylene during development, ripening, and postharvest life. Among physiological disorders, water-soaking is shown to be ethylene-independent while the development of chilling injury is under the control of ethylene. Finally, we have used the large genetic diversity of this species to localize two genes controlling the climacteric character on the melon genome map. This type of work opens new possibilities for the genetic improvement of fruit quality through the generation of introgressed lines using marker-assisted selection. | |
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