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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
22/05/2023 |
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Actualizado : |
22/05/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
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Autor : |
SCHOLZ , S.; PEREYRA, S.; SILVA, P.; GERMAN, S. |
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Afiliación : |
RUTH SCHOLZ, Instituto Paraguayo de Tecnología Agraria (IPTA), Capitán Miranda, Paraguay; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA PAULA SILVA VILLELLA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Resistance to leaf rust in cultivars and wheat lines of Paraguay. [Resistencia a roya de la hoja en cultivares y líneas de trigo de Paraguay]. [Resistência à ferrugem da folha em cultivares e linhas de trigo do Paraguai]. |
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Complemento del título : |
Plant protection. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Agrociencia Uruguay, 2023, Vol.27, e997. https://doi.org/10.31285/AGRO.27.997 -- OPEN ACCESS. |
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ISSN : |
2730-5066 |
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DOI : |
10.31285/AGRO.27.997 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 01 Feb 2022; Accepted 27 Oct 2022; Published 27 Mar 2023; Published 03 March 2023. -- Editor: Carlos PérezUniversidad de la República, Facultad de Agronomía, Paysandú, Uruguay. -- Correspondence: Ruth Scholz, ruth.scholz@ipta.gov.py -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (https://creativecommons.org/licenses/by/4.0/ ) |
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Contenido : |
ABSTRACT.- Leaf rust (LR) of bread wheat (Triticum aestviumL.), caused by the fungus Puccinia triticinaEriks, is one of the most important diseases in Paraguay, the Southern Cone and worldwide. The economic importance of the disease is clear considering that two or morefungicide applications are necessary to control itinsusceptible cultivars. The best strategy for the management of this disease is through genetic resistance. This research was conducted in Uruguay aiming topostulatethe LR resistance genes present in 102 lines and wheat cultivars from Paraguay,and to study their field re-sistance. The presence of 18 major resistance genes expressed at the seedling stage (Lr1,Lr2,Lr3a,Lr3bg,Lr3ka,Lr9,Lr10,Lr11,Lr16,Lr17,Lr23,Lr24,Lr26,Lr27+Lr31,Lr28,Lr30,Lr42) was postulated based on the reaction to different races of the pathogen. The adult plant resistance gene Lr34was confirmed in 26% of the materials, based on the molecular marker csLV34. This study also allowed differentiatingmaterials with field resistance that can be explained by the seedling resistance and those with adult plant resistance. Knowledge of the resistance genes present in the germplasm of breeding programs is of paramount importance to establish strategies in order toachieve effective and long-lasting resistance based mainly on the combination of race-non-specific minor genes. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. RESUMEN.- La roya de la hoja (HR) del trigo pan (Triticum aestvium L.), causada por el hongo Puccinia triticina Eriks, es una de las enfermedades más importantes en Paraguay, en el Cono Sur y a nivel mundial. La importancia económica de la enfer-medad es clara cuando se considera que son necesarias dos o más aplicaciones de fungicidas para su control en culti-vares susceptibles. La mejor estrategia para el manejo de esta enfermedad es a través de la resistencia genética.Esta investigación fue llevada a cabo en Uruguay con el objetivo de postular los genes de resistencia a HR presentes en 102 líneas y cultivares de trigo de Paraguay y estudiar su resistencia a campo. La presencia de 18 genes mayores de resis-tencia expresados en plántula (Lr1, Lr2, Lr3a, Lr3bg, Lr3ka, Lr9, Lr10, Lr11, Lr16,Lr17, Lr23, Lr24, Lr26, Lr27+Lr31, Lr28, Lr30, Lr42) fue postulada con base en la reacción frente a distintas razas del patógeno. El gen de resistencia de planta adulta Lr34 fue confirmado en 26% de los materiales con base en el marcador molecular csLV34.Este estudio permitió también diferenciar aquellos materiales cuya resistencia en el campo puede explicarse por su resistencia en plántula y aquellos que poseen resistencia de planta adulta. El conocimiento de los genes de resistencia presentes en el germo-plasma de los programas de mejoramiento es de suma importancia para establecer estrategias que logren resistencia efectiva y de larga duración basadas principalmente en la combinación de genes menores de raza no específicos. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. RESUMO.- A ferrugem da folha (HR) do trigo-pão (Triticum aestviumL.), causada pelo fungo Puccinia triticinaEriks, é uma das doenças mais importantes no Paraguai, no Cone Sul e no mundo. A importânciaeconômica da doença é clara quando se considera que duas ou mais aplicações de fungicidas são necessárias para o controle da doença em cultivares suscetíveis. A melhor estratégia para o manejo desta doença é através da resistência genética. Esta pesquisa foi realizada no Uruguai, com o objetivo de postular os genes de resistência HR presentesem 102 linhas e cultivares de trigo do Paraguai e estudar sua resistência em campo. A presença de 18 principais genes de resistência expressos em plântulas (Lr1, Lr2,Lr3a, Lr3bg, Lr3ka, Lr9, Lr10, Lr11, Lr16, Lr17, Lr23, Lr24, Lr26, Lr27+Lr31, Lr28, Lr30, Lr42) foi postulada. com base na reação contra diferentes raças do patógeno. O gene de resistência de plantas adultas Lr34foi postulado em 26% dos materiais com base no marcador molecular csLV34. Este estudo também possibilitou diferenciar aqueles materiais cuja resistência em campo pode ser explicada por sua resistência em plantulas e aqueles que apresentam resistência na planta adulta. O conhecimento dos genes de resistência presentes no germoplasma dos programas de melhoramento é de suma importância para o estabelecimento de estratégias que alcancem resistência efetiva e duradoura baseada principalmente na combinação de genes menores não específicos da raça. Copyright (c) 2023 Agrociencia Uruguay MenosABSTRACT.- Leaf rust (LR) of bread wheat (Triticum aestviumL.), caused by the fungus Puccinia triticinaEriks, is one of the most important diseases in Paraguay, the Southern Cone and worldwide. The economic importance of the disease is clear considering that two or morefungicide applications are necessary to control itinsusceptible cultivars. The best strategy for the management of this disease is through genetic resistance. This research was conducted in Uruguay aiming topostulatethe LR resistance genes present in 102 lines and wheat cultivars from Paraguay,and to study their field re-sistance. The presence of 18 major resistance genes expressed at the seedling stage (Lr1,Lr2,Lr3a,Lr3bg,Lr3ka,Lr9,Lr10,Lr11,Lr16,Lr17,Lr23,Lr24,Lr26,Lr27+Lr31,Lr28,Lr30,Lr42) was postulated based on the reaction to different races of the pathogen. The adult plant resistance gene Lr34was confirmed in 26% of the materials, based on the molecular marker csLV34. This study also allowed differentiatingmaterials with field resistance that can be explained by the seedling resistance and those with adult plant resistance. Knowledge of the resistance genes present in the germplasm of breeding programs is of paramount importance to establish strategies in order toachieve effective and long-lasting resistance based mainly on the combination of race-non-specific minor genes. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. RESUMEN.- La roya de la hoja ... Presentar Todo |
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Palabras claves : |
Adult plant resistance; Ferrugem da folha; Genes de resistencia; Leaf rust; Resistance genes; Resistencia de planta adulta; Resistência de plantas adultas; Roya de la hoja. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17160/1/997-ArticleText-20230327sc.pdf
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Marc : |
LEADER 06101naa a2200289 a 4500
001 1064147
005 2023-05-22
008 2023 bl uuuu u00u1 u #d
022 $a2730-5066
024 7 $a10.31285/AGRO.27.997$2DOI
100 1 $aSCHOLZ , S.
245 $aResistance to leaf rust in cultivars and wheat lines of Paraguay. [Resistencia a roya de la hoja en cultivares y líneas de trigo de Paraguay]. [Resistência à ferrugem da folha em cultivares e linhas de trigo do Paraguai].$h[electronic resource]
260 $c2023
500 $aArticle history: Received 01 Feb 2022; Accepted 27 Oct 2022; Published 27 Mar 2023; Published 03 March 2023. -- Editor: Carlos PérezUniversidad de la República, Facultad de Agronomía, Paysandú, Uruguay. -- Correspondence: Ruth Scholz, ruth.scholz@ipta.gov.py -- License: This work is licensed under a Creative Commons Attribution 4.0 International License. (https://creativecommons.org/licenses/by/4.0/ )
520 $aABSTRACT.- Leaf rust (LR) of bread wheat (Triticum aestviumL.), caused by the fungus Puccinia triticinaEriks, is one of the most important diseases in Paraguay, the Southern Cone and worldwide. The economic importance of the disease is clear considering that two or morefungicide applications are necessary to control itinsusceptible cultivars. The best strategy for the management of this disease is through genetic resistance. This research was conducted in Uruguay aiming topostulatethe LR resistance genes present in 102 lines and wheat cultivars from Paraguay,and to study their field re-sistance. The presence of 18 major resistance genes expressed at the seedling stage (Lr1,Lr2,Lr3a,Lr3bg,Lr3ka,Lr9,Lr10,Lr11,Lr16,Lr17,Lr23,Lr24,Lr26,Lr27+Lr31,Lr28,Lr30,Lr42) was postulated based on the reaction to different races of the pathogen. The adult plant resistance gene Lr34was confirmed in 26% of the materials, based on the molecular marker csLV34. This study also allowed differentiatingmaterials with field resistance that can be explained by the seedling resistance and those with adult plant resistance. Knowledge of the resistance genes present in the germplasm of breeding programs is of paramount importance to establish strategies in order toachieve effective and long-lasting resistance based mainly on the combination of race-non-specific minor genes. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. RESUMEN.- La roya de la hoja (HR) del trigo pan (Triticum aestvium L.), causada por el hongo Puccinia triticina Eriks, es una de las enfermedades más importantes en Paraguay, en el Cono Sur y a nivel mundial. La importancia económica de la enfer-medad es clara cuando se considera que son necesarias dos o más aplicaciones de fungicidas para su control en culti-vares susceptibles. La mejor estrategia para el manejo de esta enfermedad es a través de la resistencia genética.Esta investigación fue llevada a cabo en Uruguay con el objetivo de postular los genes de resistencia a HR presentes en 102 líneas y cultivares de trigo de Paraguay y estudiar su resistencia a campo. La presencia de 18 genes mayores de resis-tencia expresados en plántula (Lr1, Lr2, Lr3a, Lr3bg, Lr3ka, Lr9, Lr10, Lr11, Lr16,Lr17, Lr23, Lr24, Lr26, Lr27+Lr31, Lr28, Lr30, Lr42) fue postulada con base en la reacción frente a distintas razas del patógeno. El gen de resistencia de planta adulta Lr34 fue confirmado en 26% de los materiales con base en el marcador molecular csLV34.Este estudio permitió también diferenciar aquellos materiales cuya resistencia en el campo puede explicarse por su resistencia en plántula y aquellos que poseen resistencia de planta adulta. El conocimiento de los genes de resistencia presentes en el germo-plasma de los programas de mejoramiento es de suma importancia para establecer estrategias que logren resistencia efectiva y de larga duración basadas principalmente en la combinación de genes menores de raza no específicos. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-. RESUMO.- A ferrugem da folha (HR) do trigo-pão (Triticum aestviumL.), causada pelo fungo Puccinia triticinaEriks, é uma das doenças mais importantes no Paraguai, no Cone Sul e no mundo. A importânciaeconômica da doença é clara quando se considera que duas ou mais aplicações de fungicidas são necessárias para o controle da doença em cultivares suscetíveis. A melhor estratégia para o manejo desta doença é através da resistência genética. Esta pesquisa foi realizada no Uruguai, com o objetivo de postular os genes de resistência HR presentesem 102 linhas e cultivares de trigo do Paraguai e estudar sua resistência em campo. A presença de 18 principais genes de resistência expressos em plântulas (Lr1, Lr2,Lr3a, Lr3bg, Lr3ka, Lr9, Lr10, Lr11, Lr16, Lr17, Lr23, Lr24, Lr26, Lr27+Lr31, Lr28, Lr30, Lr42) foi postulada. com base na reação contra diferentes raças do patógeno. O gene de resistência de plantas adultas Lr34foi postulado em 26% dos materiais com base no marcador molecular csLV34. Este estudo também possibilitou diferenciar aqueles materiais cuja resistência em campo pode ser explicada por sua resistência em plantulas e aqueles que apresentam resistência na planta adulta. O conhecimento dos genes de resistência presentes no germoplasma dos programas de melhoramento é de suma importância para o estabelecimento de estratégias que alcancem resistência efetiva e duradoura baseada principalmente na combinação de genes menores não específicos da raça. Copyright (c) 2023 Agrociencia Uruguay
653 $aAdult plant resistance
653 $aFerrugem da folha
653 $aGenes de resistencia
653 $aLeaf rust
653 $aResistance genes
653 $aResistencia de planta adulta
653 $aResistência de plantas adultas
653 $aRoya de la hoja
700 1 $aPEREYRA, S.
700 1 $aSILVA, P.
700 1 $aGERMAN, S.
773 $tAgrociencia Uruguay, 2023, Vol.27, e997. https://doi.org/10.31285/AGRO.27.997 -- OPEN ACCESS.
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
14/11/2015 |
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Actualizado : |
19/04/2017 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
CROCE, V.; PIANZZOLA, M.J.; DURAND, K.; GONZÁLEZ-ARCOS, M.; JACQUES, M.A.; SIRI, M.I. |
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Afiliación : |
MATIAS GONZALEZ ARCOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Multilocus Sequence Typing reveals high variability among Clavibacter michiganensis subsp. michiganensis strains affecting tomato crops in Uruguay. |
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Fecha de publicación : |
2016 |
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Fuente / Imprenta : |
European Journal of Plant Pathology, 2016, v.144, no.1, p. 1-13. |
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ISSN : |
0929-1873 |
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DOI : |
10.1007/s10658-015-0738-0 |
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Idioma : |
Inglés |
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Notas : |
Accepted: 17 August 2015 / Published online: 28 September 2015 |
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Contenido : |
ABSTRACT.
Bacterial canker caused by Clavibacter michiganensis subspecies michiganensis (Cmm) has been a threat to tomato production in Uruguay for several years. In this study, 39 Cmm strains were collected from several outbreaks and production areas in Uruguay, and were identified by molecular assays and pathogenicity tests on a susceptible cultivar of tomato. In addition, a TaqMan assay targeting a putative two-component system sensor kinase gene demonstrated good specificity with all strains tested and gave no false negative results. The first epidemiological study of Cmm in this country was carried out in order to elucidate the origin of outbreaks and sources of infection and dissemination of the pathogen. Strains from Uruguay showed high genetic diversity based on a Multi Locus Sequence Typing analysis of five housekeeping genes. This approach revealed 36 sequence types (STs) within a worldwide collection of 108 Cmm strains. Ten STs correspond to strains solely isolated in Uruguay, including eight novel STs for the subspecies michiganensis. This high diversity reflects the introduction of new strains from different origins that most probably results from seed importation. This study provides relevant information about the distribution and origin of strains causing bacterial canker in Uruguay and will pave the way for the establishment of preventive measures to control the disease.
© 2015 Koninklijke Nederlandse Planteziektenkundige Vereniging |
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Palabras claves : |
BACTERIAL CANKER; EPIDEMIOLOGY; GENETIC DIVERSITY; SEED TRANSMISSION. |
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Thesagro : |
CANCRO BACTERIANO; CLAVIBACTER MICHIGANENSIS SUBSP; TOMATE. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02454nam a2200289 a 4500
001 1053884
005 2017-04-19
008 2016 bl uuuu u0uu1 u #d
022 $a0929-1873
024 7 $a10.1007/s10658-015-0738-0$2DOI
100 1 $aCROCE, V.
245 $aMultilocus Sequence Typing reveals high variability among Clavibacter michiganensis subsp. michiganensis strains affecting tomato crops in Uruguay.$h[electronic resource]
260 $aEuropean Journal of Plant Pathology, 2016, v.144, no.1, p. 1-13.$c2016
500 $aAccepted: 17 August 2015 / Published online: 28 September 2015
520 $aABSTRACT. Bacterial canker caused by Clavibacter michiganensis subspecies michiganensis (Cmm) has been a threat to tomato production in Uruguay for several years. In this study, 39 Cmm strains were collected from several outbreaks and production areas in Uruguay, and were identified by molecular assays and pathogenicity tests on a susceptible cultivar of tomato. In addition, a TaqMan assay targeting a putative two-component system sensor kinase gene demonstrated good specificity with all strains tested and gave no false negative results. The first epidemiological study of Cmm in this country was carried out in order to elucidate the origin of outbreaks and sources of infection and dissemination of the pathogen. Strains from Uruguay showed high genetic diversity based on a Multi Locus Sequence Typing analysis of five housekeeping genes. This approach revealed 36 sequence types (STs) within a worldwide collection of 108 Cmm strains. Ten STs correspond to strains solely isolated in Uruguay, including eight novel STs for the subspecies michiganensis. This high diversity reflects the introduction of new strains from different origins that most probably results from seed importation. This study provides relevant information about the distribution and origin of strains causing bacterial canker in Uruguay and will pave the way for the establishment of preventive measures to control the disease. © 2015 Koninklijke Nederlandse Planteziektenkundige Vereniging
650 $aCANCRO BACTERIANO
650 $aCLAVIBACTER MICHIGANENSIS SUBSP
650 $aTOMATE
653 $aBACTERIAL CANKER
653 $aEPIDEMIOLOGY
653 $aGENETIC DIVERSITY
653 $aSEED TRANSMISSION
700 1 $aPIANZZOLA, M.J.
700 1 $aDURAND, K.
700 1 $aGONZÁLEZ-ARCOS, M.
700 1 $aJACQUES, M.A.
700 1 $aSIRI, M.I.
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