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Article

Thorough Characterization of ETHQB3.5, a QTL Involved in Melon Fruit Climacteric Behavior and Aroma Volatile Composition

by
Noelia Dos-Santos
1,
María C. Bueso
2,
Aurora Díaz
3,4,5,
Eduard Moreno
6,
Jordi Garcia-Mas
6,7,
Antonio J. Monforte
5 and
Juan Pablo Fernández-Trujillo
1,8,*
1
Department of Agronomical Engineering, Technical University of Cartagena (UPCT), Paseo Alfonso XIII, 48. ETSIA, E-30203 Cartagena, Spain
2
Department of Applied Mathematics and Statistics, UPCT-Technical University of Cartagena, Doctor Fleming s/n. ETSII, E-30202 Cartagena, Spain
3
Department of Plant Sciences, Agrifood Research and Technology Centre of Aragon (CITA), Avda. Montañana 930, E-50059 Zaragoza, Spain
4
AgriFood Institute of Aragon—IA2, CITA-University of Zaragoza, E-50059 Zaragoza, Spain
5
IBMCP Instituto de Biología Molecular y Celular de Plantas, CSIC/Universidad Politécnica de València, Ciudad Politécnica de la Innovación—Edificio 8E Ingeniero Fausto Elio, s/n, E-46022 València, Spain
6
Center for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus Universitat Autònoma de Barcelona (UAB), Bellaterra, E-08193 Barcelona, Spain
7
Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Edifici CRAG, Campus UAB, Bellaterra, E-08193 Barcelona, Spain
8
Institute of Plant Biotechnology, UPCT-Technical University of Cartagena, Plaza del Hospital s/n, Campus Muralla del Mar, E-30202 Cartagena, Spain
*
Author to whom correspondence should be addressed.
Foods 2023, 12(2), 376; https://doi.org/10.3390/foods12020376
Submission received: 25 November 2022 / Revised: 3 January 2023 / Accepted: 6 January 2023 / Published: 13 January 2023
(This article belongs to the Special Issue Postharvest Management of Fruits and Vegetables Series II)
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Abstract

The effect of the QTL involved in climacteric ripening ETHQB3.5 on the fruit VOC composition was studied using a set of Near-Isogenic Lines (NILs) containing overlapping introgressions from the Korean accession PI 16375 on the chromosome 3 in the climacteric ‘Piel de Sapo’ (PS) genetic background. ETHQB3.5 was mapped in an interval of 1.24 Mb that contained a NAC transcription factor. NIL fruits also showed differences in VOC composition belonging to acetate esters, non-acetate esters, and sulfur-derived families. Cosegregation of VOC composition (23 out of 48 total QTLs were mapped) and climacteric ripening was observed, suggesting a pleiotropic effect of ETHQB3.5. On the other hand, other VOCs (mainly alkanes, aldehydes, and ketones) showed a pattern of variation independent of ETHQB3.5 effects, indicating the presence of other genes controlling non-climacteric ripening VOCs. Network correlation analysis and hierarchical clustering found groups of highly correlated compounds and confirmed the involvement of the climacteric differences in compound classes and VOC differences. The modification of melon VOCs may be achieved with or without interfering with its physiological behavior, but it is likely that high relative concentrations of some type of ethylene-dependent esters could be achieved in climacteric cultivars.
Keywords: candidate genes; Cucumis melo L.; ethylene production; fruit quality; near-isogenic lines; respiration rate; quantitative trait loci; volatile organic compounds candidate genes; Cucumis melo L.; ethylene production; fruit quality; near-isogenic lines; respiration rate; quantitative trait loci; volatile organic compounds

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MDPI and ACS Style

Dos-Santos, N.; Bueso, M.C.; Díaz, A.; Moreno, E.; Garcia-Mas, J.; Monforte, A.J.; Fernández-Trujillo, J.P. Thorough Characterization of ETHQB3.5, a QTL Involved in Melon Fruit Climacteric Behavior and Aroma Volatile Composition. Foods 2023, 12, 376. https://doi.org/10.3390/foods12020376

AMA Style

Dos-Santos N, Bueso MC, Díaz A, Moreno E, Garcia-Mas J, Monforte AJ, Fernández-Trujillo JP. Thorough Characterization of ETHQB3.5, a QTL Involved in Melon Fruit Climacteric Behavior and Aroma Volatile Composition. Foods. 2023; 12(2):376. https://doi.org/10.3390/foods12020376

Chicago/Turabian Style

Dos-Santos, Noelia, María C. Bueso, Aurora Díaz, Eduard Moreno, Jordi Garcia-Mas, Antonio J. Monforte, and Juan Pablo Fernández-Trujillo. 2023. "Thorough Characterization of ETHQB3.5, a QTL Involved in Melon Fruit Climacteric Behavior and Aroma Volatile Composition" Foods 12, no. 2: 376. https://doi.org/10.3390/foods12020376

APA Style

Dos-Santos, N., Bueso, M. C., Díaz, A., Moreno, E., Garcia-Mas, J., Monforte, A. J., & Fernández-Trujillo, J. P. (2023). Thorough Characterization of ETHQB3.5, a QTL Involved in Melon Fruit Climacteric Behavior and Aroma Volatile Composition. Foods, 12(2), 376. https://doi.org/10.3390/foods12020376

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