A novel introgression line collection to unravel the genetics of climacteric ripening and fruit quality in melon
Santo Domingo, Miguel
Martín-Hernández, Ana Montserrat
Introgression lines are valuable germplasm for scientists and breeders, since they ease genetic studies such as QTL interactions and positional cloning as well as the introduction of favorable alleles into elite varieties. We developed a novel introgression line collection in melon using two commercial European varieties with diferent ripening behavior, the climacteric cantalupensis ‘Védrantais’ as recurrent parent and the non‑climacteric inodorus ‘Piel de Sapo’ as donor parent. The collection contains 34 introgression lines, covering 99% of the donor genome. The mean introgression size is 18.16 Mb and ~ 3 lines were obtained per chromosome, on average. The high segregation of these lines for multiple fruit quality traits allowed us to identify 27 QTLs that modifed sugar content, altered fruit morphology or were involved in climacteric ripening. In addition, we confrmed the genomic location of fve major genes previously described, which control mainly fruit appearance, such as mottled rind and external color. Most of the QTLs had been reported before in other populations sharing parental lines, while three QTLs (EAROQP11.3, ECDQP11.2 and FIRQP4.1) were newly detected in our work. These introgression lines would be useful to perform additional genetic studies, as fne mapping and gene pyramiding, especially for important complex traits such as fruit weight and climacteric ripening.
633 - Field crops and their production
Is part of
Pereira, Lara, Miguel Santo Domingo, Jason Argyris, Carlos Mayobre, Laura Valverde, Ana Montserrat Martín-Hernández, Marta Pujol, and Jordi Garcia-Mas. 2021. "A Novel Introgression Line Collection To Unravel The Genetics Of Climacteric Ripening And Fruit Quality In Melon". Scientific Reports 11 (1). doi:10.1038/s41598-021-90783-6.
Grant agreement number
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
MINECO/Programa Estatal de fomento de la investigación científica y técnica de excelencia/SEV-2015-0533/ES/ /
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/
Genòmica i Biotecnologia
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- ARTICLES CIENTÍFICS 
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