Search for partial resistance against Puccinia hordei in barley landraces from the Fertile Crescent
A collection of 111 barley landraces from the Fertile Crescent was screened for resistance to barley leaf rust in the field and under controlled conditions. Large variation was observed for disease severity under field conditions. Accessions with high resistance because of hypersensitivity were identified. Also segregation was observed in some accessions, with individual plants showing hypersensitive reactions (IT ≤ 6). Partial resistance due to a reduction of infection in spite of a compatible infection was commonly found (19%). Resistance of 12 accessions selected for their low disease severity and high IT, was shown to be due to a prolonged latency period and increased percentage of early aborted colonies not associated with host cell necrosis. A high correlation was observed between the microscopic and macroscopic components of partial resistance.
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Format: | artículo biblioteca |
Language: | English |
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Wiley-Blackwell
2006-08
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Subjects: | Hordeum vulgare, Puccinia hordei, Barley, Landraces, Leaf rust, Histology, |
Online Access: | http://hdl.handle.net/10261/160977 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100003767 |
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dig-ias-es-10261-1609772018-02-21T01:54:19Z Search for partial resistance against Puccinia hordei in barley landraces from the Fertile Crescent Shtaya, M. J. Y. Sillero, Josefina C. Rubiales, Diego Ministerio de Asuntos Exteriores y Cooperación (España) Comisión Interministerial de Ciencia y Tecnología, CICYT (España) Hordeum vulgare Puccinia hordei Barley Landraces Leaf rust Histology A collection of 111 barley landraces from the Fertile Crescent was screened for resistance to barley leaf rust in the field and under controlled conditions. Large variation was observed for disease severity under field conditions. Accessions with high resistance because of hypersensitivity were identified. Also segregation was observed in some accessions, with individual plants showing hypersensitive reactions (IT ≤ 6). Partial resistance due to a reduction of infection in spite of a compatible infection was commonly found (19%). Resistance of 12 accessions selected for their low disease severity and high IT, was shown to be due to a prolonged latency period and increased percentage of early aborted colonies not associated with host cell necrosis. A high correlation was observed between the microscopic and macroscopic components of partial resistance. The Spanish Agency for International Cooperation (AECI) and CICYT project AGL2005-01781 for financial support. Peer reviewed 2018-02-20T08:47:00Z 2018-02-20T08:47:00Z 2006-08 artículo http://purl.org/coar/resource_type/c_6501 Plant Breeding 125(4): 343-346 (2006) 0179-9541 http://hdl.handle.net/10261/160977 10.1111/j.1439-0523.2006.01239.x 1439-0523 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100003767 en Postprint https://doi.org/10.1111/j.1439-0523.2006.01239.x Sí open Wiley-Blackwell |
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Hordeum vulgare Puccinia hordei Barley Landraces Leaf rust Histology Hordeum vulgare Puccinia hordei Barley Landraces Leaf rust Histology |
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Hordeum vulgare Puccinia hordei Barley Landraces Leaf rust Histology Hordeum vulgare Puccinia hordei Barley Landraces Leaf rust Histology Shtaya, M. J. Y. Sillero, Josefina C. Rubiales, Diego Search for partial resistance against Puccinia hordei in barley landraces from the Fertile Crescent |
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A collection of 111 barley landraces from the Fertile Crescent was screened for resistance to barley leaf rust in the field and under controlled conditions. Large variation was observed for disease severity under field conditions. Accessions with high resistance because of hypersensitivity were identified. Also segregation was observed in some accessions, with individual plants showing hypersensitive reactions (IT ≤ 6). Partial resistance due to a reduction of infection in spite of a compatible infection was commonly found (19%). Resistance of 12 accessions selected for their low disease severity and high IT, was shown to be due to a prolonged latency period and increased percentage of early aborted colonies not associated with host cell necrosis. A high correlation was observed between the microscopic and macroscopic components of partial resistance. |
author2 |
Ministerio de Asuntos Exteriores y Cooperación (España) |
author_facet |
Ministerio de Asuntos Exteriores y Cooperación (España) Shtaya, M. J. Y. Sillero, Josefina C. Rubiales, Diego |
format |
artículo |
topic_facet |
Hordeum vulgare Puccinia hordei Barley Landraces Leaf rust Histology |
author |
Shtaya, M. J. Y. Sillero, Josefina C. Rubiales, Diego |
author_sort |
Shtaya, M. J. Y. |
title |
Search for partial resistance against Puccinia hordei in barley landraces from the Fertile Crescent |
title_short |
Search for partial resistance against Puccinia hordei in barley landraces from the Fertile Crescent |
title_full |
Search for partial resistance against Puccinia hordei in barley landraces from the Fertile Crescent |
title_fullStr |
Search for partial resistance against Puccinia hordei in barley landraces from the Fertile Crescent |
title_full_unstemmed |
Search for partial resistance against Puccinia hordei in barley landraces from the Fertile Crescent |
title_sort |
search for partial resistance against puccinia hordei in barley landraces from the fertile crescent |
publisher |
Wiley-Blackwell |
publishDate |
2006-08 |
url |
http://hdl.handle.net/10261/160977 http://dx.doi.org/10.13039/501100007273 http://dx.doi.org/10.13039/501100003767 |
work_keys_str_mv |
AT shtayamjy searchforpartialresistanceagainstpucciniahordeiinbarleylandracesfromthefertilecrescent AT sillerojosefinac searchforpartialresistanceagainstpucciniahordeiinbarleylandracesfromthefertilecrescent AT rubialesdiego searchforpartialresistanceagainstpucciniahordeiinbarleylandracesfromthefertilecrescent |
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