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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
29/01/2020 |
Actualizado : |
23/03/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
KOLMER, J.A.; HERMAN, A.; ORDOÑEZ, M.E.; GERMAN, S.; MORGOUNOV, A.; PRETORIUS, Z.; VISSER, B.; ANISKSTER, Y.; ACEVEDO, M. |
Afiliación : |
J. A. KOLMER, United States Department of Agriculture - Agricultural Research Service, Cereal Disease Laboratory, St. Paul, MN, United States; A. HERMAN, Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, United States; M. E. ORDOÑEZ, Pontificia Universidad Católica del Ecuador, Quito, Ecuador; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; A. MORGOUNOV, International Wheat and Maize Improvement Center, Ankara, Turkey; Z. PRETORIUS, University of the Free State, Faculty of Natural and Agricultural Sciences, Bloemfontein, South Africa; B. VISSER, University of the Free State, Faculty of Natural and Agricultural Sciences, Bloemfontein, South Africa; Y. ANIKSTER, Institute for Cereal Crop Improvement, Tel Aviv University, Tel Aviv, Israel; M. ACEVEDO, International Programs-CALS, Cornell University, Ithaca, NY, United States. |
Título : |
Endemic and panglobal genetic groups, and divergence of host-associated forms in worldwide collections of the wheat leaf rust fungus Puccinia triticina as determined by genotyping by sequencing. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Heredity, 1 March 2020, Volume 124, Issue 3, Pages 397-409. Doi: https://doi.org/10.1038/s41437-019-0288-x |
ISSN : |
0018-067X |
DOI : |
10.1038/s41437-019-0288-x |
Idioma : |
Inglés |
Notas : |
Article history: Received: 5 September 2019 / Revised: 3 December 2019 / Accepted: 3 December 2019 / Published online: 20 December 2019.
Supplementary information The online version of this article (https://doi.org/10.1038/s41437-019-0288-x) contains supplementary material, which is available to authorized users. |
Contenido : |
ABSTRACT.
The wheat leaf rust fungus, Puccinia triticina, is found in the major wheat growing regions of the world and is a leading cause of yield loss in wheat. Populations of P. triticina are highly variable for virulence to resistance genes in wheat and adapt quickly to resistance genes in wheat cultivars. The objectives of this study were to determine the genetic relatedness of worldwide collections of P. triticina using restriction site associated genotyping by sequencing. A total of 558 isolates of P. triticina from wheat producing regions in North America, South America, Europe, the Middle East, Ethiopia, Russia, Pakistan, Central Asia, China, New Zealand, and South Africa were characterized at 6745 single nucleotide loci. Isolates were also tested for virulence to 20 near-isogenic lines that differ for leaf rust resistance genes. Populations that were geographically proximal were also more closely related for genotypes. In addition, groups of isolates within regions that varied for genotype were similar to groups from other regions, which indicated past and recent migration across regions. Isolates from tetraploid durum wheat in five different regions were highly related with distinct genotypes compared to isolates from hexaploid common wheat. Based on a molecular clock, isolates from durum wheat found only in Ethiopia were the first to diverge from a common ancestor form of P. triticina that is found on the wild wheat relative Aegilops speltoides, followed by the divergence of isolates found worldwide that are virulent to durum wheat, and then by isolates found on common wheat.
© 2019, The Author(s), under exclusive licence to The Genetics Society. MenosABSTRACT.
The wheat leaf rust fungus, Puccinia triticina, is found in the major wheat growing regions of the world and is a leading cause of yield loss in wheat. Populations of P. triticina are highly variable for virulence to resistance genes in wheat and adapt quickly to resistance genes in wheat cultivars. The objectives of this study were to determine the genetic relatedness of worldwide collections of P. triticina using restriction site associated genotyping by sequencing. A total of 558 isolates of P. triticina from wheat producing regions in North America, South America, Europe, the Middle East, Ethiopia, Russia, Pakistan, Central Asia, China, New Zealand, and South Africa were characterized at 6745 single nucleotide loci. Isolates were also tested for virulence to 20 near-isogenic lines that differ for leaf rust resistance genes. Populations that were geographically proximal were also more closely related for genotypes. In addition, groups of isolates within regions that varied for genotype were similar to groups from other regions, which indicated past and recent migration across regions. Isolates from tetraploid durum wheat in five different regions were highly related with distinct genotypes compared to isolates from hexaploid common wheat. Based on a molecular clock, isolates from durum wheat found only in Ethiopia were the first to diverge from a common ancestor form of P. triticina that is found on the wild wheat relative Aegilops speltoides, followed by the di... Presentar Todo |
Palabras claves : |
TRITICUM; WHEAT. |
Thesagro : |
TRIGO. |
Asunto categoría : |
F01 Cultivo |
Marc : |
LEADER 02936naa a2200289 a 4500 001 1060708 005 2020-03-23 008 2020 bl uuuu u00u1 u #d 022 $a0018-067X 024 7 $a10.1038/s41437-019-0288-x$2DOI 100 1 $aKOLMER, J.A. 245 $aEndemic and panglobal genetic groups, and divergence of host-associated forms in worldwide collections of the wheat leaf rust fungus Puccinia triticina as determined by genotyping by sequencing.$h[electronic resource] 260 $c2020 500 $aArticle history: Received: 5 September 2019 / Revised: 3 December 2019 / Accepted: 3 December 2019 / Published online: 20 December 2019. Supplementary information The online version of this article (https://doi.org/10.1038/s41437-019-0288-x) contains supplementary material, which is available to authorized users. 520 $aABSTRACT. The wheat leaf rust fungus, Puccinia triticina, is found in the major wheat growing regions of the world and is a leading cause of yield loss in wheat. Populations of P. triticina are highly variable for virulence to resistance genes in wheat and adapt quickly to resistance genes in wheat cultivars. The objectives of this study were to determine the genetic relatedness of worldwide collections of P. triticina using restriction site associated genotyping by sequencing. A total of 558 isolates of P. triticina from wheat producing regions in North America, South America, Europe, the Middle East, Ethiopia, Russia, Pakistan, Central Asia, China, New Zealand, and South Africa were characterized at 6745 single nucleotide loci. Isolates were also tested for virulence to 20 near-isogenic lines that differ for leaf rust resistance genes. Populations that were geographically proximal were also more closely related for genotypes. In addition, groups of isolates within regions that varied for genotype were similar to groups from other regions, which indicated past and recent migration across regions. Isolates from tetraploid durum wheat in five different regions were highly related with distinct genotypes compared to isolates from hexaploid common wheat. Based on a molecular clock, isolates from durum wheat found only in Ethiopia were the first to diverge from a common ancestor form of P. triticina that is found on the wild wheat relative Aegilops speltoides, followed by the divergence of isolates found worldwide that are virulent to durum wheat, and then by isolates found on common wheat. © 2019, The Author(s), under exclusive licence to The Genetics Society. 650 $aTRIGO 653 $aTRITICUM 653 $aWHEAT 700 1 $aHERMAN, A. 700 1 $aORDOÑEZ, M.E. 700 1 $aGERMAN, S. 700 1 $aMORGOUNOV, A. 700 1 $aPRETORIUS, Z. 700 1 $aVISSER, B. 700 1 $aANISKSTER, Y. 700 1 $aACEVEDO, M. 773 $tHeredity, 1 March 2020, Volume 124, Issue 3, Pages 397-409. Doi: https://doi.org/10.1038/s41437-019-0288-x
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
|
Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
20/03/2024 |
Actualizado : |
20/03/2024 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
GIANNITTI, F.; MACHADO, M.; SILVEIRA, C.S.; CIBILS-STEWART, X.; BARAIBAR, N.; QUEIROZ-MACHADO, C.R.R.; POPPENGA, R.H.; MENCHACA, A.; UZAL, F.A.; GARCÍA, J.A.; MATTO, C.; DUTRA, F.; RUPRECHTER, G.; CAFFARENA, D.; SARAVIA, A. |
Afiliación : |
FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MIZAEL MACHADO DA COSTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINE DA SILVA SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NICOLÁS BARAIBAR PEDERSEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CINTIA R. R. QUEIROZ-MACHADO, Centro Universitario Regional Noroeste, Universidad de la República, Tacuarembó, Uruguay; ROBERT H. POPPENGA, School of Veterinary Medicine, University of California, Davis, Davis CA, United States; JOSE ALEJO MENCHACA BARBEITO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANCISCO A. UZAL, School of Veterinary Medicine, University of California, Davis, San Bernardino, CA, United States; JUAN A. GARCÍA, Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible, Balcarce, Argentina; CAROLINA MATTO, División Laboratorios Veterinarios, Ministerio de Ganadería, Agricultura y Pesca, Paysandú, Uruguay; FERNANDO DUTRA, División Laboratorios Veterinarios, Ministerio de Ganadería, Agricultura y Pesca, Treinta y Tres, Uruguay; GRETEL RUPRECHTER, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay; RUBEN DARÍO CAFFARENA LEDESMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay; ANDERSON SARAVIA DE MELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Experimental oral administration of pollen beetle (Astylus atromaculatus) to cattle results in an acute lethal gastrointestinal disease. |
Complemento del título : |
Research article. |
Fecha de publicación : |
2024 |
Fuente / Imprenta : |
Veterinary Pathology. 2024. https://doi.org/10.1177/03009858241231557 -- [In Press] |
ISSN : |
0300-9858 |
DOI : |
10.1177/03009858241231557 |
Idioma : |
Inglés |
Notas : |
Article history: First published online March 4, 2024. -- Correspondence: Federico Giannitti, Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria, Estación Experimental La Estanzuela, Ruta 50 km 11, Semillero 70006, Colonia, Uruguay.
Email: fgiannitti@inia.org.uy -- Funding: This work was funded by grant P__27 from the "Instituto Nacional de Investigación Agropecuaria" (INIA), Uruguay. -- |
Contenido : |
ABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might contain a gastrointestinal toxin or pathogen, extensive toxicological testing failed to identify a causative toxin. Other pathomechanisms such as direct physical damage caused by insect fragments on the alimentary tract seem plausible, although further studies are needed to elucidate the pathogenesis of A. atromaculatus-associated disease. © The Author(s) 2024. MenosABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might c... Presentar Todo |
Palabras claves : |
Alimentary tract; Astylus atromaculatus; Bovine; Enteritis; Experimental disease; Insects; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA; Rumenitis; South America. |
Asunto categoría : |
L01 Ganadería |
Marc : |
LEADER 03582naa a2200433 a 4500 001 1064506 005 2024-03-20 008 2024 bl uuuu u00u1 u #d 022 $a0300-9858 024 7 $a10.1177/03009858241231557$2DOI 100 1 $aGIANNITTI, F. 245 $aExperimental oral administration of pollen beetle (Astylus atromaculatus) to cattle results in an acute lethal gastrointestinal disease.$h[electronic resource] 260 $c2024 500 $aArticle history: First published online March 4, 2024. -- Correspondence: Federico Giannitti, Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria, Estación Experimental La Estanzuela, Ruta 50 km 11, Semillero 70006, Colonia, Uruguay. Email: fgiannitti@inia.org.uy -- Funding: This work was funded by grant P__27 from the "Instituto Nacional de Investigación Agropecuaria" (INIA), Uruguay. -- 520 $aABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might contain a gastrointestinal toxin or pathogen, extensive toxicological testing failed to identify a causative toxin. Other pathomechanisms such as direct physical damage caused by insect fragments on the alimentary tract seem plausible, although further studies are needed to elucidate the pathogenesis of A. atromaculatus-associated disease. © The Author(s) 2024. 653 $aAlimentary tract 653 $aAstylus atromaculatus 653 $aBovine 653 $aEnteritis 653 $aExperimental disease 653 $aInsects 653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA 653 $aRumenitis 653 $aSouth America 700 1 $aMACHADO, M. 700 1 $aSILVEIRA, C.S. 700 1 $aCIBILS-STEWART, X. 700 1 $aBARAIBAR, N. 700 1 $aQUEIROZ-MACHADO, C.R.R. 700 1 $aPOPPENGA, R.H. 700 1 $aMENCHACA, A. 700 1 $aUZAL, F.A. 700 1 $aGARCÍA, J.A. 700 1 $aMATTO, C. 700 1 $aDUTRA, F. 700 1 $aRUPRECHTER, G. 700 1 $aCAFFARENA, D. 700 1 $aSARAVIA, A. 773 $tVeterinary Pathology. 2024. https://doi.org/10.1177/03009858241231557 -- [In Press]
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