Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay.
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/981729 |
Resumo: | Phakopsora pachyrhizi, the cause of soybean rust, is an economically important pathogen of soybean in South America. Understanding the pathogenicity of indigenous fungal populations is useful for identifying resistant plant genotypes and targeting effective cultivars against certain populations. Fifty-nine rust populations from Argentina, Brazil, and Paraguay were evaluated for pathogenicity in three cropping seasons, 2007/2008?2009/2010, using 16 soybean differentials. Only two pairs of P. pachyrhizi populations displayed identical pathogenicity profiles, indicating substantial pathogenic variation in the rust populations. Comparative analysis of 59 South American and five Japanese samples revealed that pathogenic differences were not only detected within South America but also distinct between the P. pachyrhizi populations from South America and Japan. In addition, seasonal changes in rust pathogenicity were detected during the sampling period. The differentials containing resistance genes (Rpp: resistance to P. p achyrhizi) Rpp1, Rpp2, Rpp3, and Rpp4, except for Plant Introduction (PI) 587880A, displayed a resistant reaction to only 1.8?14, 24?28, 22, and 36 % of South American P. pachyrhizi populations, respectively. In contrast, PI 587880A (Rpp1), Shiranui (Rpp5), and 3 Rpp-unknown differentials (PI 587855, PI 587905, and PI 594767A) showed a resistant reaction to 78?96 % of all populations. This study demonstrated that P. pachyrhizi populations from South America vary geographically and temporally in pathogenicity and that the known Rpp genes other than Rpp1 in PI 587880A and Rpp5 have been less effective against recent pathogen populations in the countries studied. |
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Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay.SojaPhakopsora pachyrhizi, the cause of soybean rust, is an economically important pathogen of soybean in South America. Understanding the pathogenicity of indigenous fungal populations is useful for identifying resistant plant genotypes and targeting effective cultivars against certain populations. Fifty-nine rust populations from Argentina, Brazil, and Paraguay were evaluated for pathogenicity in three cropping seasons, 2007/2008?2009/2010, using 16 soybean differentials. Only two pairs of P. pachyrhizi populations displayed identical pathogenicity profiles, indicating substantial pathogenic variation in the rust populations. Comparative analysis of 59 South American and five Japanese samples revealed that pathogenic differences were not only detected within South America but also distinct between the P. pachyrhizi populations from South America and Japan. In addition, seasonal changes in rust pathogenicity were detected during the sampling period. The differentials containing resistance genes (Rpp: resistance to P. p achyrhizi) Rpp1, Rpp2, Rpp3, and Rpp4, except for Plant Introduction (PI) 587880A, displayed a resistant reaction to only 1.8?14, 24?28, 22, and 36 % of South American P. pachyrhizi populations, respectively. In contrast, PI 587880A (Rpp1), Shiranui (Rpp5), and 3 Rpp-unknown differentials (PI 587855, PI 587905, and PI 594767A) showed a resistant reaction to 78?96 % of all populations. This study demonstrated that P. pachyrhizi populations from South America vary geographically and temporally in pathogenicity and that the known Rpp genes other than Rpp1 in PI 587880A and Rpp5 have been less effective against recent pathogen populations in the countries studied.HAJIME AKAMATSU, JIRCAS; NAOKI YAMANAKA, JIRCAS; YUICHI YAMAOKA, Faculty of Life and Environmental Sciences, University of Tsukuba; RAFAEL MOREIRA SOARES, CNPSO; WILFRIDO MOREL, CICM/CRIA/IPTA; ANTONIO JUAN GERARDO IVANCOVICH, EEA-Pergamino/INTA; ALICIA NOELIA BOGADO, CICM/CRIA/IPTA; MASAYASU KATO, JIRCAS; JOSÉ TADASHI YORINORI, CNPSO; KAZUHIRO SUENAGA, JIRCAS.AKAMATSU, H.YAMANAKA, N.YAMAOKA, Y.SOARES, R. M.MOREL, W.IVANCOVICH, A. J. G.BOGADO, A. N.KATO, M.YORINORI, J. T.SUENAGA, K.2014-03-06T11:11:11Z2014-03-06T11:11:11Z2014-03-0620132014-04-09T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal of General Plant Pathology, v. 79, n. 1, p. 28-40, Jan. 2013.1345-2630http://www.alice.cnptia.embrapa.br/alice/handle/doc/98172910.1007/s10327-012-0421-7enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T01:02:08Zoai:www.alice.cnptia.embrapa.br:doc/981729Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T01:02:08falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T01:02:08Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay. |
title |
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay. |
spellingShingle |
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay. AKAMATSU, H. Soja |
title_short |
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay. |
title_full |
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay. |
title_fullStr |
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay. |
title_full_unstemmed |
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay. |
title_sort |
Pathogenic diversity of soybean rust in Argentina, Brazil, and Paraguay. |
author |
AKAMATSU, H. |
author_facet |
AKAMATSU, H. YAMANAKA, N. YAMAOKA, Y. SOARES, R. M. MOREL, W. IVANCOVICH, A. J. G. BOGADO, A. N. KATO, M. YORINORI, J. T. SUENAGA, K. |
author_role |
author |
author2 |
YAMANAKA, N. YAMAOKA, Y. SOARES, R. M. MOREL, W. IVANCOVICH, A. J. G. BOGADO, A. N. KATO, M. YORINORI, J. T. SUENAGA, K. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
HAJIME AKAMATSU, JIRCAS; NAOKI YAMANAKA, JIRCAS; YUICHI YAMAOKA, Faculty of Life and Environmental Sciences, University of Tsukuba; RAFAEL MOREIRA SOARES, CNPSO; WILFRIDO MOREL, CICM/CRIA/IPTA; ANTONIO JUAN GERARDO IVANCOVICH, EEA-Pergamino/INTA; ALICIA NOELIA BOGADO, CICM/CRIA/IPTA; MASAYASU KATO, JIRCAS; JOSÉ TADASHI YORINORI, CNPSO; KAZUHIRO SUENAGA, JIRCAS. |
dc.contributor.author.fl_str_mv |
AKAMATSU, H. YAMANAKA, N. YAMAOKA, Y. SOARES, R. M. MOREL, W. IVANCOVICH, A. J. G. BOGADO, A. N. KATO, M. YORINORI, J. T. SUENAGA, K. |
dc.subject.por.fl_str_mv |
Soja |
topic |
Soja |
description |
Phakopsora pachyrhizi, the cause of soybean rust, is an economically important pathogen of soybean in South America. Understanding the pathogenicity of indigenous fungal populations is useful for identifying resistant plant genotypes and targeting effective cultivars against certain populations. Fifty-nine rust populations from Argentina, Brazil, and Paraguay were evaluated for pathogenicity in three cropping seasons, 2007/2008?2009/2010, using 16 soybean differentials. Only two pairs of P. pachyrhizi populations displayed identical pathogenicity profiles, indicating substantial pathogenic variation in the rust populations. Comparative analysis of 59 South American and five Japanese samples revealed that pathogenic differences were not only detected within South America but also distinct between the P. pachyrhizi populations from South America and Japan. In addition, seasonal changes in rust pathogenicity were detected during the sampling period. The differentials containing resistance genes (Rpp: resistance to P. p achyrhizi) Rpp1, Rpp2, Rpp3, and Rpp4, except for Plant Introduction (PI) 587880A, displayed a resistant reaction to only 1.8?14, 24?28, 22, and 36 % of South American P. pachyrhizi populations, respectively. In contrast, PI 587880A (Rpp1), Shiranui (Rpp5), and 3 Rpp-unknown differentials (PI 587855, PI 587905, and PI 594767A) showed a resistant reaction to 78?96 % of all populations. This study demonstrated that P. pachyrhizi populations from South America vary geographically and temporally in pathogenicity and that the known Rpp genes other than Rpp1 in PI 587880A and Rpp5 have been less effective against recent pathogen populations in the countries studied. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2014-03-06T11:11:11Z 2014-03-06T11:11:11Z 2014-03-06 2014-04-09T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Journal of General Plant Pathology, v. 79, n. 1, p. 28-40, Jan. 2013. 1345-2630 http://www.alice.cnptia.embrapa.br/alice/handle/doc/981729 10.1007/s10327-012-0421-7 |
identifier_str_mv |
Journal of General Plant Pathology, v. 79, n. 1, p. 28-40, Jan. 2013. 1345-2630 10.1007/s10327-012-0421-7 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/981729 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
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EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503388022439936 |