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dc.contributor.author
Yanniccari, Marcos Ezequiel
dc.contributor.author
Gigón, Ramón
dc.date.available
2022-09-09T17:27:22Z
dc.date.issued
2020-01
dc.identifier.citation
Yanniccari, Marcos Ezequiel; Gigón, Ramón; Cross-resistance to acetyl-CoA carboxylase–inhibiting herbicides conferred by a target-site mutation in perennial ryegrass ( Lolium perenne ) from Argentina; Weed Science Society of America; Weed Science; 68; 2; 1-2020; 116-124
dc.identifier.issn
0043-1745
dc.identifier.uri
http://hdl.handle.net/11336/168177
dc.description.abstract
In Argentina, Lolium spp. occur in 40% of winter cereal crops from the Pampas. Several years ago, cases of glyphosate-resistant perennial ryegrass (Lolium perenne L.) were detected, and the use of acetyl-CoA carboxylase (ACCase)-inhibiting herbicides to eradicate these plants has been considered. The aim of this study was to evaluate the sensitivity of a putative pinoxaden-resistant L. perenne population to ACCase-inhibiting herbicides. Around 80% of plants from the putative resistant population survived at a recommended dose of pinoxaden, and they produced viable seeds. The resistance indices (RIs) to pinoxaden were 5.1 and 2.8 for plant survival and seed production, respectively. A single point mutation that conferred a Asp-2078-Gly substitution in ACCase was the source of the resistance. To match the plant control achieved in the susceptible population, the resistant population required 5.4- and 10.4-fold greater doses of clethodim and quizalofop, respectively. RIs for viable seed production when treated with clethodim and quizalofop were 3.3 and 6.6, respectively. The Asp-2078-Gly mutation endowed significant levels of resistance to pinoxaden, clethodim, and quizalofop. For three herbicides, the level of resistance of a pinoxaden-resistant L. perenne population to ACCase inhibitors was evaluated, based on an evaluation of dose response for plant survival and seed production. The RIs were higher for plant survival than for seed production. In Argentina, the selection pressure associated with clethodim and haloxifop preplant application and pinoxaden use on wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) crops, would have favored the propagation of the Asp-2078-Gly mutation with its associated resistance.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Weed Science Society of America
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ASP-2078-GLY
dc.subject
CLETHODIM
dc.subject
LOLPE
dc.subject
PERENNIAL RYEGRASS
dc.subject
PINOXADEN
dc.subject
QUIZALOFOP
dc.subject
VIABLE SEED PRODUCTION
dc.subject.classification
Ciencias de las Plantas, Botánica
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Cross-resistance to acetyl-CoA carboxylase–inhibiting herbicides conferred by a target-site mutation in perennial ryegrass ( Lolium perenne ) from Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-08T15:16:58Z
dc.journal.volume
68
dc.journal.number
2
dc.journal.pagination
116-124
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Yanniccari, Marcos Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Gigón, Ramón. No especifíca;
dc.journal.title
Weed Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/product/identifier/S0043174520000016/type/journal_article
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/wsc.2020.1
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