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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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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
09/09/2019 |
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Actualizado : |
09/09/2019 |
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Tipo de producción científica : |
Abstracts/Resúmenes |
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Autor : |
DEL PINO, M.L.; SALAZAR-DÍAZ, E.; RODRÍGUEZ-ARIAS, L.; MARQUES, C.B.; CIAPPESONI, G. |
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Afiliación : |
MARIA LILIANA DEL PINO BALADON, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Evaluation of udder morphology and milk production in prolific and meat ewes. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
In: Annual Meeting of the European Federation of Animal Science, 70., Ghent, Belgium, 26-30 August, 2019. Book of abstracts No. 25. |
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Páginas : |
p. 357 |
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Idioma : |
Inglés |
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Contenido : |
Currently in Uruguay, several experiments of crossbreeding and synthetic breeds are being developed with the inclusion of East Friesian (EF), Finnsheep (F) and Texel (T) meat breeds. The milk production and udder morphology of 57 ewes (8 F, 24 EF and 25 T breeds) from three flocks were evaluated. A total of 161 records (24 F, 68 EF and 69 T breeds) were collected in three test-day controls with average days in milk (DIM) 21, 40 and 60. The ewes were
randomly assigned to four experimental groups and separated from the lambs during 4 hours in a good pasture. Before that, it was allowed the nursing of the lambs and the ewes were manual milked to empty their udders. Glandular cistern area (CA) were recorded by ultrasonography (from the side area of the udder) after intramuscular injection of 1 I.U. of synthetic oxytocin, followed by mechanic milking to record the milk weight (MW) and quality (protein-P% and fat-F% percentages). All the traits were adjusted for the effects age of the ewe (1-3), type of lambing (1-2), breed (F, EF, T) and DIM and the square of DIM (both as covariables). Correlation between the residuals of CA and MW from these models were computed. EF showed a wider CA (35.7±2.0 cm2) than F (25.0±3.4) and T (28.4±2.6 cm2) breeds. This was expected because EF is a dairy breed selected to be tolerant to long milking intervals. However, no differences (P>0.05) were observed for milk production (F 382±47; EF 430±29; T 392±37 ml). The F and T breeds showed higher (P<0.0001) P% (5.6±0.1 and 5.6±0.1%, respectively) than EF (4.9±0.1%) and the similar (P>0.05) F% (7.0±0.4; 6.9±0.3 and 6.5±0.2, respectively). The correlation between CA and MW residuals were 0.48 F, 0.42 T and zero (P>0.05) for EF breeds. These findings would indicate a greater proportion of alveolar production in the EF breed and/or a better response to the release of milk by the oxytocin injection than the non-dairy breeds. Though, further research would help to determine the breed?s differences between milk production and quality, as their conversion into kilograms of lambs weaned. MenosCurrently in Uruguay, several experiments of crossbreeding and synthetic breeds are being developed with the inclusion of East Friesian (EF), Finnsheep (F) and Texel (T) meat breeds. The milk production and udder morphology of 57 ewes (8 F, 24 EF and 25 T breeds) from three flocks were evaluated. A total of 161 records (24 F, 68 EF and 69 T breeds) were collected in three test-day controls with average days in milk (DIM) 21, 40 and 60. The ewes were
randomly assigned to four experimental groups and separated from the lambs during 4 hours in a good pasture. Before that, it was allowed the nursing of the lambs and the ewes were manual milked to empty their udders. Glandular cistern area (CA) were recorded by ultrasonography (from the side area of the udder) after intramuscular injection of 1 I.U. of synthetic oxytocin, followed by mechanic milking to record the milk weight (MW) and quality (protein-P% and fat-F% percentages). All the traits were adjusted for the effects age of the ewe (1-3), type of lambing (1-2), breed (F, EF, T) and DIM and the square of DIM (both as covariables). Correlation between the residuals of CA and MW from these models were computed. EF showed a wider CA (35.7±2.0 cm2) than F (25.0±3.4) and T (28.4±2.6 cm2) breeds. This was expected because EF is a dairy breed selected to be tolerant to long milking intervals. However, no differences (P>0.05) were observed for milk production (F 382±47; EF 430±29; T 392±37 ml). The F and T breeds showed higher (P<0.... Presentar Todo |
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Palabras claves : |
MEAT. |
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Asunto categoría : |
A50 Investigación agraria |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/13244/1/del-Pino-Ghent-2019.pdf
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Marc : |
LEADER 02716nam a2200181 a 4500
001 1060144
005 2019-09-09
008 2019 bl uuuu u01u1 u #d
100 1 $aDEL PINO, M.L.
245 $aEvaluation of udder morphology and milk production in prolific and meat ewes.$h[electronic resource]
260 $aIn: Annual Meeting of the European Federation of Animal Science, 70., Ghent, Belgium, 26-30 August, 2019. Book of abstracts No. 25.$c2019
300 $ap. 357
520 $aCurrently in Uruguay, several experiments of crossbreeding and synthetic breeds are being developed with the inclusion of East Friesian (EF), Finnsheep (F) and Texel (T) meat breeds. The milk production and udder morphology of 57 ewes (8 F, 24 EF and 25 T breeds) from three flocks were evaluated. A total of 161 records (24 F, 68 EF and 69 T breeds) were collected in three test-day controls with average days in milk (DIM) 21, 40 and 60. The ewes were randomly assigned to four experimental groups and separated from the lambs during 4 hours in a good pasture. Before that, it was allowed the nursing of the lambs and the ewes were manual milked to empty their udders. Glandular cistern area (CA) were recorded by ultrasonography (from the side area of the udder) after intramuscular injection of 1 I.U. of synthetic oxytocin, followed by mechanic milking to record the milk weight (MW) and quality (protein-P% and fat-F% percentages). All the traits were adjusted for the effects age of the ewe (1-3), type of lambing (1-2), breed (F, EF, T) and DIM and the square of DIM (both as covariables). Correlation between the residuals of CA and MW from these models were computed. EF showed a wider CA (35.7±2.0 cm2) than F (25.0±3.4) and T (28.4±2.6 cm2) breeds. This was expected because EF is a dairy breed selected to be tolerant to long milking intervals. However, no differences (P>0.05) were observed for milk production (F 382±47; EF 430±29; T 392±37 ml). The F and T breeds showed higher (P<0.0001) P% (5.6±0.1 and 5.6±0.1%, respectively) than EF (4.9±0.1%) and the similar (P>0.05) F% (7.0±0.4; 6.9±0.3 and 6.5±0.2, respectively). The correlation between CA and MW residuals were 0.48 F, 0.42 T and zero (P>0.05) for EF breeds. These findings would indicate a greater proportion of alveolar production in the EF breed and/or a better response to the release of milk by the oxytocin injection than the non-dairy breeds. Though, further research would help to determine the breed?s differences between milk production and quality, as their conversion into kilograms of lambs weaned.
653 $aMEAT
700 1 $aSALAZAR-DÍAZ, E.
700 1 $aRODRÍGUEZ-ARIAS, L.
700 1 $aMARQUES, C.B.
700 1 $aCIAPPESONI, G.
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