Modulating climacteric intensity in melon through QTL stacking
| Autor: | Miguel Santo Domingo, Lorena Areco, Carlos Mayobre, Laura Valverde, Ana Montserrat Martín-Hernández, Marta Pujol, Jordi Garcia-Mas |
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| Přispěvatelé: | Producció Vegetal, Genòmica i Biotecnologia, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Generalitat de Catalunya |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | IRTA Pubpro. Open Digital Archive Institut de Recerca i Tecnologia Agroalimentàries (IRTA) |
| ISSN: | 2052-7276 |
| DOI: | 10.1093/hr/uhac131 |
| Popis: | Fruit ripening is one of the main processes affecting fruit quality and shelf life. In melon there are both climacteric and non-climacteric genotypes, making it a suitable species to study fruit ripening. In the current study, in order to fine tune ripening, we have pyramided three climacteric QTLs in the non-climacteric genotype "Piel de Sapo": ETHQB3.5, ETHQV6.3 and ETHQV8.1. The results showed that the three QTLs interact epistatically, affecting ethylene production and ripening-related traits such as aroma profile. Each individual QTL has a specific role in the ethylene production profile. ETHQB3.5 accelerates the ethylene peak, ETHQV6.3 advances the ethylene production and ETHQV8.1 enhances the effect of the other two QTLs. Regarding aroma, the three QTLs independently activated the production of esters changing the aroma profile of the fruits, with no significant effects in fruit firmness, soluble solid content and fruit size. Understanding the interaction and the effect of different ripening QTLs offers a powerful knowledge for candidate gene identification as well as for melon breeding programs, where fruit ripening is one of the main objectives. This work was supported by grants AGL2015–64625-C2–1-R, RTI2018-097665-B-C2, SEV-2015-0533 and CEX2019-000902-S funded by Ministerio de Ciencia e Innovación MCIN/AEI/10.13039/501100011033 and FEDER, and by the CERCA Programme/Generalitat de Catalunya and 2017 SGR 1319 grant from the Generalitat de Catalunya to JGM. M.S.D. and L.V. were supported by grants BES-2017-079956 and PRE2018-086627 funded by MCIN/AEI/10.13039/501100011033 and by “ESF Investing in your future”. CM was supported by 2019 FI_B 00124 fellowship from the Secretaria d’Universitats i Recerca del Departament d’Empresa i Coneixement de la Generalitat de Catalunya and the co-funding of the European Social Fund (ESF “ESF is investing in your future”) from the European Union. With funding from the Spanish government through the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000902-S) |
| Databáze: | OpenAIRE |
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