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Título: | Identification of a new pathotype of Puccinia hordei with virulence for the resistance gene Rph7 |
Autor: | Shtaya, M. J. Y.; Sillero, Josefina C.; Rubiales, Diego CSIC ORCID | Palabras clave: | Barley Hordeum vulgare Leaf rust Puccinia hordei Rph7 |
Fecha de publicación: | oct-2006 | Editor: | Springer Nature | Citación: | European Journal of Plant Pathology 116(2): 103-106 (2006) | Resumen: | Barley leaf rust resistance gene Rph7, derived from barley accession Cebada Capa, is the most effective R-gene for resistance to Puccinia hordei. Virulence for this gene was known in the USA, Israel and Morocco but not yet in Europe. We found an unexpected leaf rust infection in the field at Córdoba, Spain in 2004 on Rph7 carrying lines. This virulence for Rph7 was confirmed in growth chamber experiments, being the first report of Rph7 virulence in European populations of P. hordei. A collection of 680 barley accessions was screened for resistance against this new isolate. Twelve accessions showed segregation with individual plants showing resistance based on hypersensitivity (low infection type). These individual resistant plants were selected and grown in the greenhouse to obtain seeds. | Versión del editor: | http://doi.org/10.1007/s10658-006-9043-2 | URI: | http://hdl.handle.net/10261/160975 | DOI: | 10.1007/s10658-006-9043-2 | ISSN: | 0929-1873 | E-ISSN: | 1573-8469 |
Aparece en las colecciones: | (IAS) Artículos |
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new_pathotype_Puccinia_hordei.pdf | 150,42 kB | Adobe PDF | Visualizar/Abrir |
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