Genetic regulation of volatile production in two melon introgression line collections with contrasting ripening behavior
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Author
Mayobre, Carlos
Santo Domingo, Miguel
Özkan, Elif Nur
Fernández-Borbolla, Andrés
Ruiz-Lasierra, Javier
Publication date
2024-01-16ISSN
2052-7276
Abstract
The importance of melon aroma in determining fruit quality has been highlighted in recent years. The fruit volatile profile is influenced by the type of fruit ripening. Non-climacteric fruits contain predominantly aldehydes, while climacteric fruits mainly produce esters. Several genes have been described to participate in volatile organic compounds (VOCs) biosynthesis pathways, but knowledge in this area is still incomplete. In this work we analysed the volatile profile of two reciprocal Introgression Line (IL) collections generated from a cross between ‘Piel de Sapo’ (PS) and ‘Védrantais’ (VED) melons, differing in their aroma profile and ripening behaviour. SPME GC–MS was performed to identify genes responsible for VOCs formation. More than 1000 QTLs for many volatiles were detected taken together
both populations. Introgressions on chromosomes 3, 5, 6, 7 and 8 modified ester-aldehyde balance and were correlated to ripening changes in both genetic backgrounds. Some previously identified QTLs for fruit ripening might be involved in these phenotypes, such as ETHQV8.1 on chromosome 8 and ETHQV6.3 on chromosome 6. PS alleles on chromosomes 2, 6, 10 and 11 were found to increase
ester content when introgressed in VED melons. Terpenes showed to be affected by several genomic regions not related to ripening. In addition, several candidate genes have been hypothesized to be responsible for some of the QTLs detected. The analysis of volatile compounds in two reciprocal IL collections has increased our understanding of the relationship between ripening and aroma and offers
valuable plant material to improve food quality in melon breeding programs.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
633 - Field crops and their production
Pages
13
Publisher
Oxford University Press
Is part of
Horticulture Research
Citation
Mayobre, Carlos, Miguel Santo Domingo, Erdal Özkan, Andrés Fernández-Borbolla, Javier Ruiz-Lasierra, Jordi García-Más, and Marta Pujol. 2024. “Genetic Regulation of Volatile Production in Two Melon Introgression Line Collections With Contrasting Ripening Behavior.” Horticulture Research, January. https://doi.org/10.1093/hr/uhae020.
Grant agreement number
MICIU/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTI2018-097665-B-C21/ES/APROXIMACIONES DE VARIABILIDAD NATURAL Y EDICIÓN GENÉTICA PARA EL ESTUDIO DE LA CALIDAD DE FRUTO Y LA RESISTENCIA A ENFERMEDADES EN MELÓN/
MICINN/Programa Estatal para impulsar la investigación científico-técnica y su transferencia/PID2021-125998OB-C21/ES/Natural variability and gene editing to decipher fruit quality, disease resistance, fruit morphology and reproductive barriers in melon/
MICIU/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I/CEX2019-000902-S/ES/ /
Program
Genòmica i Biotecnologia
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2555]
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Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/