Mostrar el registro sencillo del ítem
dc.contributor.author
Yanniccari, Marcos Ezequiel
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Palma Bautista, Candelario
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Vázquez García, José Guadalupe
dc.contributor.author
Gigón, Ramón
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Mallory-Smith, Carol Ann
dc.contributor.author
De Prado, Rafael
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.date.available
2023-12-07T11:51:02Z
dc.date.issued
2023-03
dc.identifier.citation
Yanniccari, Marcos Ezequiel; Palma Bautista, Candelario; Vázquez García, José Guadalupe; Gigón, Ramón; Mallory-Smith, Carol Ann; et al.; Constitutive overexpression of EPSPS by gene duplication is involved in glyphosate resistance in Salsola tragus; John Wiley & Sons Ltd; Pest Management Science; 79; 3; 3-2023; 1062-1068
dc.identifier.issn
1526-498X
dc.identifier.uri
http://hdl.handle.net/11336/219617
dc.description.abstract
BACKGROUND: Glyphosate-resistant Salsola tragus accessions have been identified in the USA and Argentina; however, the mechanisms of glyphosate resistance have not been elucidated. The goal of this study was to determine the mechanism/s of glyphosate resistance involved in two S. tragus populations (R1 and R2) from Argentina. RESULTS: Both glyphosate-resistant populations had a six-fold lower sensitivity to glyphosate than the S population (i.e. resistance index). No evidence of differential absorption, translocation or metabolism of glyphosate was found in the R1 and R2 populations compared to a susceptible population (S). No 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) mutations were detected, but S. tragus R1 and R2 plants had ≈14-fold higher EPSPS gene relative copy number compared to the S counterpart. In R1 and R2, EPSPS duplication entailed a greater constitutive EPSPS transcript abundance by approximately seven-fold and a basal EPSPS activity approximately three-fold higher than the S population. CONCLUSION: The current study reports EPSPS gene duplication for the first time as a mechanism of glyphosate resistance in S. tragus populations. The increase of glyphosate dose needed to kill R1 and R2 plants was linked to the EPSPS transcript abundance and level of EPSPS activity. This evidence supports the convergent evolution of the overexpression of the EPSPS gene in several Chenopodiaceae/Amaranthaceae species adapted to drought environments and the role of gene duplication as an adaptive advantage for plants to withstand stress.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Ltd
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
MECHANISM OF GLYPHOSATE-RESISTANCE
dc.subject
RUSSIAN THISTLE
dc.subject
SHIKIMATE ACCUMULATION
dc.subject
TARGET SITE RESISTANCE
dc.subject.classification
Agronomía, reproducción y protección de plantas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Agricultura, Silvicultura y Pesca
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS AGRÍCOLAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
Constitutive overexpression of EPSPS by gene duplication is involved in glyphosate resistance in Salsola tragus
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-12-06T15:05:10Z
dc.journal.volume
79
dc.journal.number
3
dc.journal.pagination
1062-1068
dc.journal.pais
Reino Unido
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.description.fil
Fil: Yanniccari, Marcos Ezequiel. Universidad Nacional de La Pampa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Palma Bautista, Candelario. Universidad de Córdoba; España
dc.description.fil
Fil: Vázquez García, José Guadalupe. Universidad de Córdoba; España
dc.description.fil
Fil: Gigón, Ramón. No especifíca;
dc.description.fil
Fil: Mallory-Smith, Carol Ann. State University of Oregon; Estados Unidos
dc.description.fil
Fil: De Prado, Rafael. Universidad de Córdoba; España
dc.journal.title
Pest Management Science
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/ps.7272
Archivos asociados