|
Registro completo
|
|
Biblioteca (s) : |
INIA La Estanzuela. |
|
Fecha : |
10/01/2019 |
|
Actualizado : |
07/03/2022 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
Autor : |
STEWART, S.; RODRIGUEZ, M.; YAMANAKA, N. |
|
Afiliación : |
SILVINA MARIA STEWART SONEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARCELO JULIAN RODRIGUEZ ALONZO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NAOKI YAMANAKA, Biological Resources and Post-harvest Division Japan International Research Center for Agricultural Sciences (JIRCAS)Tsukuba Japan. |
|
Título : |
Pathotypic variation of Phakopsora pachyrhizi isolates from Uruguay. |
|
Fecha de publicación : |
2019 |
|
Fuente / Imprenta : |
Tropical Plant Pathology, 2019, Volume 44, pages 309-317. Doi: https://doi.org/10.1007/s40858-018-0269-2 |
|
ISSN : |
Online: 1983-2052 |
|
DOI : |
10.1007/s40858-018-0269-2 |
|
Idioma : |
Inglés |
|
Notas : |
Article History: Received: 24 September 2018/Accepted: 27 November 2018/First Online: 02 January 2019. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s40858-018-0269-2) contains supplementary material, which is available to authorized users. Acknowledgments We are grateful to the Brazilian Agricultural Research Corporation (Embrapa) for providing seeds of differential soybean varieties, except for No6-12-1. This research was partly funded by JIRCAS research project "Development of technologies for the control of migratory plant pests and transboundary diseases". |
|
Contenido : |
Soybean rust, caused by Phakopsora pachyrhizi, is one of the most important foliar diseases threatening soybean production in Uruguay. Knowledge of pathogenic variation among Uruguayan rust populations is necessary to guide development of resistant soybean cultivars in national breeding programs. To assess pathogenic variation,12 P. pachyrhizi isolates were collected from fields across the country over a four-year period and were inoculated onto a set of 12 differential soybean genotypes. All Uruguayan rust isolates (URPs) were highly virulent on differential soybean plants carrying resistance genes Rpp1, Rpp3, and Rpp4. Conversely, all isolates showed resistant reactions on soybean differentials with Rpp1-b and on a line carrying the genes Rpp2, Rpp4, and a Rpp5 allele. The pathogenic variation of the URPs was compared to that of a collection of 157 P. pachyrhizi isolates from other Latin American countries and Japan. All URPs clustered together and with other fungal isolates from South America. Of the seven different pathotypes that were found, four shared identical virulence patterns with isolates from South America, and three were associated with unique virulence patterns, which mainly resulted from the reactions they caused on plants carrying Rpp3, Rpp4 and especially Rpp6. The results indicate that the URPs can overcome the resistance of a larger number of Rpp genes than P. pachyrhizi isolates from neighboring countries. The resistant genes Rpp1-b and Rpp5 proved to be effective against the pathogen and will be introgressed into local soybean lines. MenosSoybean rust, caused by Phakopsora pachyrhizi, is one of the most important foliar diseases threatening soybean production in Uruguay. Knowledge of pathogenic variation among Uruguayan rust populations is necessary to guide development of resistant soybean cultivars in national breeding programs. To assess pathogenic variation,12 P. pachyrhizi isolates were collected from fields across the country over a four-year period and were inoculated onto a set of 12 differential soybean genotypes. All Uruguayan rust isolates (URPs) were highly virulent on differential soybean plants carrying resistance genes Rpp1, Rpp3, and Rpp4. Conversely, all isolates showed resistant reactions on soybean differentials with Rpp1-b and on a line carrying the genes Rpp2, Rpp4, and a Rpp5 allele. The pathogenic variation of the URPs was compared to that of a collection of 157 P. pachyrhizi isolates from other Latin American countries and Japan. All URPs clustered together and with other fungal isolates from South America. Of the seven different pathotypes that were found, four shared identical virulence patterns with isolates from South America, and three were associated with unique virulence patterns, which mainly resulted from the reactions they caused on plants carrying Rpp3, Rpp4 and especially Rpp6. The results indicate that the URPs can overcome the resistance of a larger number of Rpp genes than P. pachyrhizi isolates from neighboring countries. The resistant genes Rpp1-b and Rpp5 proved to be... Presentar Todo |
|
Palabras claves : |
ENFERMEDADES FOLIARES; RESISTENT GENE; RPP; SOYBEAN RUST. |
|
Thesagro : |
GLICINE MAX; SOJA. |
|
Asunto categoría : |
-- |
|
Marc : |
LEADER 02938naa a2200253 a 4500
001 1059420
005 2022-03-07
008 2019 bl uuuu u00u1 u #d
022 $aOnline: 1983-2052
024 7 $a10.1007/s40858-018-0269-2$2DOI
100 1 $aSTEWART, S.
245 $aPathotypic variation of Phakopsora pachyrhizi isolates from Uruguay.$h[electronic resource]
260 $c2019
500 $aArticle History: Received: 24 September 2018/Accepted: 27 November 2018/First Online: 02 January 2019. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s40858-018-0269-2) contains supplementary material, which is available to authorized users. Acknowledgments We are grateful to the Brazilian Agricultural Research Corporation (Embrapa) for providing seeds of differential soybean varieties, except for No6-12-1. This research was partly funded by JIRCAS research project "Development of technologies for the control of migratory plant pests and transboundary diseases".
520 $aSoybean rust, caused by Phakopsora pachyrhizi, is one of the most important foliar diseases threatening soybean production in Uruguay. Knowledge of pathogenic variation among Uruguayan rust populations is necessary to guide development of resistant soybean cultivars in national breeding programs. To assess pathogenic variation,12 P. pachyrhizi isolates were collected from fields across the country over a four-year period and were inoculated onto a set of 12 differential soybean genotypes. All Uruguayan rust isolates (URPs) were highly virulent on differential soybean plants carrying resistance genes Rpp1, Rpp3, and Rpp4. Conversely, all isolates showed resistant reactions on soybean differentials with Rpp1-b and on a line carrying the genes Rpp2, Rpp4, and a Rpp5 allele. The pathogenic variation of the URPs was compared to that of a collection of 157 P. pachyrhizi isolates from other Latin American countries and Japan. All URPs clustered together and with other fungal isolates from South America. Of the seven different pathotypes that were found, four shared identical virulence patterns with isolates from South America, and three were associated with unique virulence patterns, which mainly resulted from the reactions they caused on plants carrying Rpp3, Rpp4 and especially Rpp6. The results indicate that the URPs can overcome the resistance of a larger number of Rpp genes than P. pachyrhizi isolates from neighboring countries. The resistant genes Rpp1-b and Rpp5 proved to be effective against the pathogen and will be introgressed into local soybean lines.
650 $aGLICINE MAX
650 $aSOJA
653 $aENFERMEDADES FOLIARES
653 $aRESISTENT GENE
653 $aRPP
653 $aSOYBEAN RUST
700 1 $aRODRIGUEZ, M.
700 1 $aYAMANAKA, N.
773 $tTropical Plant Pathology, 2019, Volume 44, pages 309-317. Doi: https://doi.org/10.1007/s40858-018-0269-2
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA La Estanzuela (LE) |
|
