Knock-Out of CmNAC-NOR Affects Melon Climacteric Fruit Ripening
Ver/Abrir
Autor/a
Liu, Bin
Santo Domingo, Miguel
Mayobre, Carlos
Martín-Hernández, Ana Montserrat
Pujol, Marta
Fecha de publicación
2022-06-10ISSN
1664-462X
Resumen
Fruit ripening is an important process that affects fruit quality. A QTL in melon, ETHQV6.3, involved in climacteric ripening regulation, has been found to be encoded by CmNAC-NOR, a homologue of the tomato NOR gene. To further investigate CmNAC-NOR function, we obtained two CRISPR/Cas9-mediated mutants (nor-3 and nor-1) in the climacteric Védrantais background. nor-3, containing a 3-bp deletion altering the NAC domain A, resulted in ~8 days delay in ripening without affecting fruit quality. In contrast, the 1-bp deletion in nor-1 resulted in a fully disrupted NAC domain, which completely blocked climacteric ripening. The nor-1 fruits did not produce ethylene, no abscission layer was formed and there was no external color change. Additionally, volatile components were dramatically altered, seeds were not well developed and flesh firmness was also altered. There was a delay in fruit ripening with the nor-1 allele in heterozygosis of ~20 days. Our results provide new information regarding the function of CmNAC-NOR in melon fruit ripening, suggesting that it is a potential target for modulating shelf life in commercial climacteric melon varieties.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
633 - Cultivos y producciones
Páginas
11
Publicado por
Frontiers Media
Publicado en
Frontiers in Plant Science
Citación
Liu, Bin, Miguel Santo Domingo, Carlos Mayobre, Ana Montserrat Martín-Hernández, Marta Pujol, and Jordi Garcia-Mas. 2022. "Knock-Out Of Cmnac-NOR Affects Melon Climacteric Fruit Ripening". Frontiers In Plant Science. doi:10.3389/fpls.2022.878037.
Número del acuerdo de la subvención
MINECO/Programa Estatal de fomento de la investigación científica y técnica de excelencia/SEV-2015-0533/ES/ /
MINECO/Programa Estatal de I+D+I orientada a los retos de la sociedad/AGL2015-64625-C2-1-R/ES/DISECCION GENETICA DE DOS CARACTERES DE INTERES AGRONOMICO EN MELON: RESISTENCIA A CUCUMBER MOSAIC VIRUS Y MADURACION CLIMATERICA DE FRUTO/RESMELORIP
MICIU-FEDER/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTI2018-097665-B-C2/ES/APROXIMACIONES DE VARIABILIDAD NATURAL Y EDICIÓN GENÉTICA PARA EL ESTUDIO DE LA CALIDAD DE FRUTO Y LA RESISTENCIA A ENFERMEDADES EN MELÓN/
Program
Genòmica i Biotecnologia
Este ítem aparece en la(s) siguiente(s) colección(ones)
- ARTICLES CIENTÍFICS [2820]
Excepto si se señala otra cosa, la licencia del ítem se describe como http://creativecommons.org/licenses/by/4.0/