Fecha/hora: 06/06/2024 03:33:52

Biblioteca(s): 	INIA La Estanzuela.	
Fecha corriente: 	21/02/2014	
Fecha de la última actualización: 	24/10/2019	
Autoria: 	ROSSI, C.; CUESTA-MARCOS, A.; GOMEZ-PANDO, L.; ORJEDA, G.; WISE, R.; SATO, K.; HORI, K.; CAPETTINI, F.; VIVAR, H.; CHEN, X.; HAYES, P.	
Afiliación: 	CARLOS ALBERTO ROSSI RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Department of Crop and Soil Science Oregon State University Corvallis USA.; A. CUESTA-MARCOS, Estación Experimental de Aula Dei (CSIC)Zaragoza, España.; L. GOMEZ-PANDO, University of Nacional Agraria La Molina Lima, Perú.; G. ORJEDA, Universidad Peruana Cayetano Heredia Lima, Peru.; Corn Insects and Crop Genetics Research, USDA-ARS & Department of Plant Pathology Iowa State University Ames, USA.; Research Institute for Bioresources Okayama University Kurashiki, Japan.; Research Institute for Bioresources Okayama University Kurashiki, Japan.; FLAVIO CAPETTINI, ICARDA/CIMMYT El Batan, Mexico.; ICARDA/CIMMYT El Batan, Mexico.; USDA/ARS Pullman, USA,; Department of Crop and Soil Science Oregon State University Corvallis USA.	
Título: 	Mapping multiple disease resistance genes using a barley mapping population evaluated in Peru, Mexico, and the USA.	
Año de publicación: 	2006	
Fuente/Imprenta: 	Molecular Breeding, November 2006, Volume 18, Issue 4, Pages 355-366.	
DOI: 	10.1007/s11032-006-9043-0	
Idioma: 	Inglés	
Notas: 	Article history: Received: 14 April 2006 / Accepted: 24 August 2006.	
Contenido: 	Abstract: We used a well-characterized barley mapping population (BCD 47 x Baronesse) to determine if barley stripe rust (BSR) resistance quantitative trait loci (QTL) mapped in Mexico and the USA were effective against a reported new race in Peru. Essentially the same resistance QTL were detected using data from each of the three environments, indicating that these resistance alleles are effective against the spectrum of naturally occurring races at these sites. In addition to the mapping population, we evaluated a germplasm array consisting of lines with different numbers of mapped BSR resistance alleles. A higher BSR disease severity on CI10587, which has a single qualitative resistance gene, in Peru versus Mexico suggests there are differences in pathogen virulence between the two locations. Confirmation of a new race in Peru will require characterization using a standard set of differentials, an experiment that is underway. The highest levels of resistance in Peru were observed when the qualitative resistance gene was pyramided with quantitative resistance alleles. We also used the mapping population to locate QTL conferring resistance to barley leaf rust and barley powdery mildew. For mildew, we identified resistance QTL under field conditions in Peru that are distinct from the Mla resistance that we mapped using specific isolates under controlled conditions. These results demonstrate the long-term utility of a reference mapping population and a well-characterized germplasm array for locating and validating genes conferring quantitative and qualitative resistance to multiple pathogen.	
Palabras-Clave: 	BLUMERIA GRAMINIS F. SP. HORDEI; HORDEUM VULGARE SUBSP. VULGARE; MAPEO DE CEBADA; PUCCINIA HORDEI; PUCCINIA STRIIFORMIS F. SP. HORDEI; QUALITATIVE RESISTANCE; QUANTITATIVE RESISTANCE; RESISTENCIA ROYA EN CEBADA.	
Thesagro: 	CEBADA.	
Categoría del tema: 	H20 Enfermedades de las plantas	
Registro original: 	INIA La Estanzuela (LE)	
Ejemplares: 	LE - (49597-1) - PXI - AP - PP - PP/Molecular Breeding/2006 -  -  - DIS