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Provedor de dados:  National Institute of Agronomic Research
País:  France
Título:  Agronomical, genetical and developmental characterization of fs6.4: a Quantitative Trait Locus controlling melon fruit shape
Autores:  Moreno, E.
Fernández-Silva, I.
Eduardo, I.
Mascarell, A.
Alvarez, J.M.
Caño, A.
Monforte, A.J.
Data:  2008-05-16
Ano:  2008
Palavras-chave:  Introgression line
Flower development
Fruit shape
Genetic mapping
Fine mapping
Fruit morphology
Resumo:  The genetic control of melon fruit shape is complex. Recently, several Quantitative Trait Loci (QTLs) affecting melon fruit shape have been identified using an introgression line population derived from the cross between a Cucumis melo ‘Piel de Sapo’ cultivar and the Korean accession PI 161375 ‘Songwan Charmi’ (SC). One of these QTLs, fs6.4, was selected for further genetical and developmental characterization. The SC allele of fs6.4 induces round fruit by limiting the longitudinal development of the fruit. Its mode of gene action is largely additive, showing low interactions with environment, genetic background or when combined with other fruit shape QTLs. Its chromosomal position could be narrowed to the central part of Linkage Group VI, breaking the linkage with a fruit weight QTL located in the same linkage group. Flower development analysis showed that the QTL determines the fruit shape in the very first stages of the flower development, just few hours after the appearance of the flower bud. These results set up the basis for the molecular characterization of the gene underlying fs6.4.

Cucurbitaceae 2008. IX EUCARPIA Meeting. Avignon (France), May 21-24th, 2008
Tipo:  Conference Paper
Idioma:  Inglês
Identificador:  Moreno E., Fernández-Silva I., Eduardo I., Mascarell A., Álvarez J.M., Caño A., and Monforte A.J .2008. Agronomical, genetical and developmental characterization of fs6.4: a Quantitative Trait Locus controlling melon fruit shape. Pitrat M. (ed): Cucurbitaceae 2008, Proceedings of the IXth EUCARPIA meeting on genetics and breeding of Cucurbitaceae, Avignon (France), May 21-24th, 2008, pp. 101-108

Editor:  INRA. Centre de Recherche d'Avignon. Unité Génétique et Amélioration des Fruits et Légumes, Montfavet (France)
Relação:  Cucurbitaceae 2008

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