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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha : |
22/10/2021 |
Actualizado : |
22/10/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
GAINES, T.A.; SLAVOV, G.T.; HUGHES, D.; KÜPPER, A.; SPARKS, C.; OLIVA, J.; VILA-AIUB, M.; GARCIA, A.; MEROTTO JR. , A.; NEVE, P. |
Afiliación : |
TODD A GAINES, Department of Agricultural Biology, Colorado State University, Fort Collins, CO 80523, USA.; GANCHO T SLAVOV, Titokorangi Drive, Rotorua, 3010; Bayer AG, Crop Science Division, Weed Control, 65926, Frankfurt am Main, Germany.; DAVID HUGHES, Bayer AG, Crop Science Division, Weed Control, 65926, Frankfurt am Main, Germany.; ANITA KÜPPER, Department of Agricultural Biology, Colorado State University, Fort Collins, CO, 80523, USA.; CRYSTAL SPARKS, Department of Agricultural Biology, Colorado State University, Fort Collins, CO, 80523, USA.; JULIAN OLIVA, Protección Vegetal-FCA, Universidad Católica de Córdoba (UCC), Campus Avenida Armada Argentina 3555 (X5016DHK, Córdoba, Argentina.; MARTIN VILA-AIUB, IFEVA - CONICET - Faculty of Agronomy, Department of Ecology, University of Buenos Aires (UBA), Buenos Aires, Argentina.; MILTON ALEJANDRO GARCIA LATASA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALDO MEROTTO JR., Department of Crop Science, Federal University of Rio Grande do Sul, Porto Alegre, RS, 91501-970, Brazil.; PAUL NEVE, Rothamsted Research, West Common, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom. |
Título : |
Investigating the origins and evolution of a glyphosate-resistant weed invasion in South America. |
Fecha de publicación : |
2021 |
Fuente / Imprenta : |
Molecular Ecolology, 2021 Oct 12. [Article in Press]. Doi: https://doi.org/10.1111/mec.16221. |
DOI : |
10.1111/mec.16221 |
Idioma : |
Inglés |
Notas : |
Article history: First published: 12 October 2021. |
Contenido : |
Abstract:
The global invasion, and subsequent spread and evolution of weeds provides unique opportunities to address fundamental questions in evolutionary and invasion ecology. Amaranthus palmeri is a widespread glyphosate-resistant (GR) weed in the USA. Since 2015, GR populations of A. palmeri have been confirmed in South America, raising questions about introduction pathways and the importance of pre- versus post-invasion evolution of GR traits. We used RAD-Seq genotyping to characterize genetic structure of populations from Brazil, Argentina, Uruguay and the USA. We also quantified gene copy number of the glyphosate target, 5-enolpyruvyl-3-shikimate phosphate synthase (EPSPS) and the presence of an extra-chromosomal circular DNA (eccDNA) replicon known to confer GR in USA populations. Populations in Brazil, Argentina, and Uruguay were only weakly differentiated (pairwise FST ? 0.043) in comparison to USA populations (mean pairwise FST = 0.161, range = 0.068-0.258), suggesting a single major invasion event. However, elevated EPSPS copy number and the EPSPS replicon were identified in all populations from Brazil and Uruguay, but only in a single Argentinean population. These observations are consistent with independent in situ evolution of glyphosate resistance in Argentina, followed by some limited recent migration of the eccDNA based mechanism from Brazil to Argentina. Taken together, our results are consistent with an initial introduction of A. palmeri into South America sometime before the 1980s, and local evolution of GR in Argentina, followed by a secondary invasion of GR A. palmeri with the unique eccDNA based mechanism from the USA into Brazil and Uruguay during the 2010?s. MenosAbstract:
The global invasion, and subsequent spread and evolution of weeds provides unique opportunities to address fundamental questions in evolutionary and invasion ecology. Amaranthus palmeri is a widespread glyphosate-resistant (GR) weed in the USA. Since 2015, GR populations of A. palmeri have been confirmed in South America, raising questions about introduction pathways and the importance of pre- versus post-invasion evolution of GR traits. We used RAD-Seq genotyping to characterize genetic structure of populations from Brazil, Argentina, Uruguay and the USA. We also quantified gene copy number of the glyphosate target, 5-enolpyruvyl-3-shikimate phosphate synthase (EPSPS) and the presence of an extra-chromosomal circular DNA (eccDNA) replicon known to confer GR in USA populations. Populations in Brazil, Argentina, and Uruguay were only weakly differentiated (pairwise FST ? 0.043) in comparison to USA populations (mean pairwise FST = 0.161, range = 0.068-0.258), suggesting a single major invasion event. However, elevated EPSPS copy number and the EPSPS replicon were identified in all populations from Brazil and Uruguay, but only in a single Argentinean population. These observations are consistent with independent in situ evolution of glyphosate resistance in Argentina, followed by some limited recent migration of the eccDNA based mechanism from Brazil to Argentina. Taken together, our results are consistent with an initial introduction of A. palmeri into South Americ... Presentar Todo |
Palabras claves : |
Amaranthus palmeri; Herbicide resistance; Palmer amaranth; Population genomics; RAD-Seq. |
Thesagro : |
HERBICIDAS. |
Asunto categoría : |
H60 Malezas y escardas |
Marc : |
LEADER 02697naa a2200325 a 4500 001 1062486 005 2021-10-22 008 2021 bl uuuu u00u1 u #d 024 7 $a10.1111/mec.16221$2DOI 100 1 $aGAINES, T.A. 245 $aInvestigating the origins and evolution of a glyphosate-resistant weed invasion in South America.$h[electronic resource] 260 $c2021 500 $aArticle history: First published: 12 October 2021. 520 $aAbstract: The global invasion, and subsequent spread and evolution of weeds provides unique opportunities to address fundamental questions in evolutionary and invasion ecology. Amaranthus palmeri is a widespread glyphosate-resistant (GR) weed in the USA. Since 2015, GR populations of A. palmeri have been confirmed in South America, raising questions about introduction pathways and the importance of pre- versus post-invasion evolution of GR traits. We used RAD-Seq genotyping to characterize genetic structure of populations from Brazil, Argentina, Uruguay and the USA. We also quantified gene copy number of the glyphosate target, 5-enolpyruvyl-3-shikimate phosphate synthase (EPSPS) and the presence of an extra-chromosomal circular DNA (eccDNA) replicon known to confer GR in USA populations. Populations in Brazil, Argentina, and Uruguay were only weakly differentiated (pairwise FST ? 0.043) in comparison to USA populations (mean pairwise FST = 0.161, range = 0.068-0.258), suggesting a single major invasion event. However, elevated EPSPS copy number and the EPSPS replicon were identified in all populations from Brazil and Uruguay, but only in a single Argentinean population. These observations are consistent with independent in situ evolution of glyphosate resistance in Argentina, followed by some limited recent migration of the eccDNA based mechanism from Brazil to Argentina. Taken together, our results are consistent with an initial introduction of A. palmeri into South America sometime before the 1980s, and local evolution of GR in Argentina, followed by a secondary invasion of GR A. palmeri with the unique eccDNA based mechanism from the USA into Brazil and Uruguay during the 2010?s. 650 $aHERBICIDAS 653 $aAmaranthus palmeri 653 $aHerbicide resistance 653 $aPalmer amaranth 653 $aPopulation genomics 653 $aRAD-Seq 700 1 $aSLAVOV, G.T. 700 1 $aHUGHES, D. 700 1 $aKÜPPER, A. 700 1 $aSPARKS, C. 700 1 $aOLIVA, J. 700 1 $aVILA-AIUB, M. 700 1 $aGARCIA, A. 700 1 $aMEROTTO JR. , A. 700 1 $aNEVE, P. 773 $tMolecular Ecolology, 2021 Oct 12. [Article in Press]. Doi: https://doi.org/10.1111/mec.16221.
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
02/10/2023 |
Actualizado : |
11/10/2023 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
PEREIRA MACHÍN, M.; AREOSA, P.; SOTELO, D.; DE HEGEDUS, P. |
Afiliación : |
MARCELO PEREIRA MACHÍN, Coordinador del Proyecto - IPA; PABLO AREOSA, Responsable Componente de Seguimiento y Evaluación - IPA; DIEGO SOTELO BOVINO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PEDRO DE HEGEDUS, Técnico Extensionista emérito - IPA. |
Título : |
Sistematización de medio gestión del pasto (GP). Una comunidad de práctica (CP) en marcha. |
Complemento del título : |
Proyectos FPTA. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Revista INIA Uruguay, Setiembre 2023, no.74 p.89-92. |
Serie : |
(Revista INIA; 74). |
ISSN : |
1510-9011 |
Idioma : |
Español |
Contenido : |
A partir de los resultados alcanzados y las lecciones aprendidas luego de más de dos años de trabajo, el equipo del Proyecto reflexiona sobre las estrategias de intervención para capitalizar nuevos aprendizajes, continuar posicionando sus herramientas y escalar los resultados. El proyecto FPTA 356 GP comenzó su ejecución en el 2021. |
Palabras claves : |
CAMPO NATURAL; FPTA (FONDO DE PROMOCIÓN DE TECNOLOGÍA AGROPECUARIA); PASTURAS. |
Thesagro : |
PROYECTOS DE INVESTIGACION. |
Asunto categoría : |
A50 Investigación agraria |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17383/1/Revista-INIA-74-set-2023-20.pdf
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Marc : |
LEADER 01053naa a2200229 a 4500 001 1064337 005 2023-10-11 008 2023 bl uuuu u00u1 u #d 022 $a1510-9011 100 1 $aPEREIRA MACHÍN, M. 245 $aSistematización de medio gestión del pasto (GP). Una comunidad de práctica (CP) en marcha.$h[electronic resource] 260 $c2023 490 $a(Revista INIA; 74). 520 $aA partir de los resultados alcanzados y las lecciones aprendidas luego de más de dos años de trabajo, el equipo del Proyecto reflexiona sobre las estrategias de intervención para capitalizar nuevos aprendizajes, continuar posicionando sus herramientas y escalar los resultados. El proyecto FPTA 356 GP comenzó su ejecución en el 2021. 650 $aPROYECTOS DE INVESTIGACION 653 $aCAMPO NATURAL 653 $aFPTA (FONDO DE PROMOCIÓN DE TECNOLOGÍA AGROPECUARIA) 653 $aPASTURAS 700 1 $aAREOSA, P. 700 1 $aSOTELO, D. 700 1 $aDE HEGEDUS, P. 773 $tRevista INIA Uruguay, Setiembre 2023, no.74 p.89-92.
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