Thorough Characterization of ETHQB3.5, a QTL Involved in Melon Fruit Climacteric Behavior and Aroma Volatile Composition
Dos-Santos, Noelia (Universidad Politécnica de Cartagena. Departamento de Ingeniería Agronómica)
Bueso, María C. (Universidad Politécnica de Cartagena. Departamento de Matemática Aplicada y Estadística)
Díaz, Aurora (Instituto de Biología Molecular y Celular de Plantas)
Moreno, Eduard (Centre de Recerca en Agrigenòmica)
Garcia-Mas, Jordi (Centre de Recerca en Agrigenòmica)
Monforte, Antonio J. (Instituto de Biología Molecular y Celular de Plantas)
Fernández-Trujillo, Juan Pablo (Universidad de Cartagena)

Date:	2023
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.
Grants:	Ministerio de Ciencia e Innovación AGL2010-20858 Ministerio de Economía y Competitividad AGL2012-40130-C02-02 Agencia Estatal de Investigación AGL2003-09175-C02-01 Agencia Estatal de Investigación AGL2003-09175-C02-02 Ministerio de Educación AP2006-01565
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Candidate genes ; Cucumis melo L. ; Ethylene production ; Fruit quality ; Near-isogenic lines ; Respiration rate ; Quantitative trait loci ; Volatile organic compounds
Published in:	Foods, Vol. 12, Issue 2 (January 2023) . art. 376, ISSN 2304-8158

DOI: 10.3390/foods12020376
PMID: 36673468

36 p, 5.9 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CRAG (Centre for Research in Agricultural Genomics)
Articles > Research articles
Articles > Published articles