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Provedor de dados:  National Institute of Agronomic Research
País:  France
Título:  Genetic diversity of Spanish melons (Cucumis melo) of the Madrid provenance
Autores:  Escribano, S.
Lázaro, A.
Staub, J.E.
Data:  2008-05-16
Ano:  2008
Palavras-chave:  Mediterranean country
Cucumis melo
Genetic resource
Genetic distance
Multivariate analysis
Genetic diversity
Resumo:  The genetic diversity of five winter melon landraces having a historic presence in the town of Villaconejos, Spain (near Madrid) and four reference accessions including one accession from snakemelon, was assessed using the allelic variation at 19 SSR loci. Seventy-two polymorphic bands were scored which provided for adequate discrimination among the accessions examined. Cluster analysis (UPGMA) employing SSR-based genetic similarity (GS, Jaccard similarity coefficient) data resulted in a dendrogram with two major clades. Although winter melon accessions were represented in both clades, genetic differences among two Madrid accessions and the other seven landraces were remarkable. In fact, this genetic difference (GS = 0.24; lack of genetic affinity) was lower than the difference between the accession C- 444 and the other winter melon landraces accessions examined (GS = 0.25). Moreover, the high level of heterogeneity observed within the accessions indicates that the melons examined possess broad genetic diversity. These results suggest that an expanded genetic analysis of traditional landraces of the Madrid provenance would be warranted to assess their potential utility for plant improvement.

Cucurbitaceae 2008. IX EUCARPIA Meeting. Avignon (France), May 21-24th, 2008
Tipo:  Poster
Idioma:  Inglês
Identificador:  Escribano S., Lázaro A., Staub J.E. 2008. Genetic diversity of Spanish melons (Cucumis melo) of the Madrid provenance. Pitrat M. (ed): Cucurbitaceae 2008, Proceedings of the IXth EUCARPIA meeting on genetics and breeding of Cucurbitaceae, Avignon (France), May 21-24th, 2008, pp. 301-305.

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

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