English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/113606
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 3 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Genetic variation underlying pod size and color traits of common bean depends on quantitative trait loci with epistatic effects

AutorYuste-Lisbona, Fernando J.; González Fernández, Ana María; Capel Salinas, Carmen; García-Alcázar, Manuel; Capel, Juan; Ron Pedreira, Antonio Miguel de; Santalla Ferradás, Marta; Lozano, Rafael
Palabras claveBreeding
Phaseolus vulgaris
Epistasis
QTL analysis
Horticultural traits
Snap bean
Fecha de publicación2014
EditorSpringer
CitaciónMolecular Breeding 33 (4): 939- 952 (2014)
ResumenCommon bean is an important vegetable legume in many regions of the world. Size and color of fresh pods are the key factors for deciding the commercial acceptance of bean as a fresh vegetable. The genetic basis of important horticultural traits of common bean is still poorly understood, which hinders DNA marker-assisted breeding in this crop. Here we report the identification of single-locus and epistatic quantitative trait loci (QTLs), as well as their environment interaction effects for six pod traits, namely width, thickness, length, size index, beak length and color, using an Andean intra-gene pool recombinant inbred line population from a cross between a cultivated common bean and an exotic nuña bean. The QTL analyses performed detected a total of 23 QTLs (single-locus QTLs and epistatic QTLs): five with only individual additive effects and six with only epistatic effects, while the remaining twelve showed both effects. These QTLs were distributed across linkage groups (LGs) 1, 2, 4, 6, 7, 8, 9, 10 and 11; particularly noteworthy are the QTLs for pod size co-located on LGs 1 and 4, indicative of tight linkage or genes with pleiotropic effects governing these traits. Overall, the results obtained showed that additive and epistatic effects are the major genetic basis of pod size and color traits. The mapping of QTLs including epistatic loci for the six pod traits evaluated provides support for implementing marker-assisted selection toward genetic improvement of common bean.
Versión del editorhttp://dx.doi.org/10.1007/s11032-013-0008-9
URIhttp://hdl.handle.net/10261/113606
DOI10.1007/s11032-013-0008-9
Identificadoresdoi: 10.1007/s11032-013-0008-9
issn: 1380-3743
e-issn: 1572-9788
Aparece en las colecciones: (MBG) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.