Fecha/hora: 04/06/2024 06:45:18

Biblioteca(s): | INIA La Estanzuela.
Tipo de la producción científica: | Artículos Indexados
Fecha corriente: | 30/10/2014
Fecha de la última actualización: | 06/07/2022
Autoria: | VON ZITZEWITZ, J.; CUESTA-MARCOS, A.; CONDON, F.; CASTRO, A. J.; CHAO, S.; COREY, A.; FILICHKIN, T.; FISK, S.P.; GUTIERREZ, L.; HAGGARD, K.; KARSAI, I.; MUEHLBAUER, G. J.; SMITH, K.P.; VEISZ, O.; HAYES, P.M.
Afiliación: | JARISLAV RAMON VON ZITZEWITZ VON SALVIATI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FEDERICO CONDON PRIANO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | The genetics of winterhardiness in barley: perspectives from genome-wide association mapping.
Año de publicación: | 2011
Fuente/Imprenta: | The Plant Genome, v. 4., n,1, p. 76-91, 2011.
ISSN: | 1940-3372
DOI: | 10.3835/plantgenome2010.12.0030
Idioma: | Inglés
Contenido: | Abstract: Winterhardiness is a complex trait that involves low temperature tolerance (LTT), vernalization sensitivity, and photoperiod sensitivity. Quantitative trait loci (QTL) for these traits were fi rst identifi ed using biparental mapping populations; candidate genes for all loci have since been identifi ed and characterized. In this research we used a set of 148 accessions consisting of advanced breeding lines from the Oregon barley (Hordeum vulgare L. subsp vulgare) breeding program and selected cultivars that were extensively phenotyped and genotyped with single nucleotide polymorphisms. Using these data for genome-wide association mapping we detected the same QTL and genes that have been systematically characterized using biparental populations over nearly two decades of intensive research. In this sample of germplasm, maximum LTT can be achieved with facultative growth habit, which can be predicted using a three-locus haplotype involving FR-H1, FR-H2, and VRN-H2. The FR-H1and FR-H2 LTT QTL explained 25% of the phenotypic variation, offering the prospect that additional gains from selection can be achieved once favorable alleles are fi xed at these loci.
Thesagro: | RECURSOS GENETICOS VEGETALES.
Categoría del tema: | --
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (100605-1) - PXI - AP - DD -  -  -  - DIS