Regional scale distribution of imidazolinone herbicide-resistant alleles in red rice (Oryza sativa L.) determined through SNP markers

Roso, A.C.; Merotto, Aldo; Delatorre, Carla Andréa; Menezes, Valmir Gaedke

doi:10.1016/j.fcr.2010.07.006

Cited by 52 publications

(76 citation statements)

References 30 publications

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“…Additional studies using the same populations showed that the main herbicide resistance mechanism was ALS insensitivity indicating the occurrence of gene flow of the herbicide resistance allele from the Clearfield ® rice variety to red rice (GOULART et al, 2012;ROSO et al, 2010). In addition, long term and continued exposure of red rice populations to ALS-inhibitor herbicides used over decades in rice production may have contributed to select natural populations of IMI-tolerant red rice due to ALS polymorphism (KUK et al, 2008;RAJGURU et al, 2005;SHIVRAIN et al, 2009).…”

Section: Clearfieldmentioning

confidence: 99%

“…The adoption of this technology was rapid, resulting in more than 50% of rice acreage planted with Clearfield ® rice in Rio Grande do Sul by 2012 . On the other hand, because the continued use of this technology and minimal alternative cultural practices being adopted concomitantly, several red rice biotypes have evolved resistance to imidazolinone herbicides (MENEZES et al, 2009;ROSO et al, 2010;SUDIANTO et al, 2013).…”

Section: Clearfieldmentioning

confidence: 99%

“…Thus, this study was carried out to evaluate the sensitivity of imidazolinone-resistant red rice to glyphosate and glufosinate. (ROSO et al, 2010) and AVsus was confirmed to be susceptible after a screening for imidazolinone resistance carried out in 228 populations (MENEZES et al, 2009). The factor C included nine herbicide rates (0.001; 0.01; 0.1; 0.25; 0.5; 1.0; 2.0 and 5.0 times the recommended rate) plus an untreated check.…”

Section: Clearfieldmentioning

confidence: 99%

See 2 more Smart Citations

Sensitivity of imidazolinone-resistant red rice (Oryza sativa L.) to glyphosate and glufosinate

et al. 2015

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Section: Clearfieldmentioning

confidence: 99%

Section: Clearfieldmentioning

confidence: 99%

Section: Clearfieldmentioning

confidence: 99%

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Sensitivity of imidazolinone-resistant red rice (Oryza sativa L.) to glyphosate and glufosinate

et al. 2015

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“…Such alterations are associated with induced mutations in the gene encoding that enzyme, which can occur in different amino acids that comprise this gene (Roso et al 2010b). According to these authors, resistance of cultivars IRGA 422 CL and Puitá INTA CL is due to mutation in the respective positions of the acetolactate synthase gene: A 122 T and G 654 E. Thus, imidazolinone's loss of connection with the site of action differs among these cultivars due to the conformation of the enzyme in each mutation.…”

Section: Combined Discussion Of the Results Of Four Experimentsmentioning

confidence: 99%

Reduction of seed production of red rice escapes in clearfield rice

et al. 2013

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-Roguing is a practice used to reduce the seed source of red rice escapes to control in Clearfield-rice areas. However, there is great difficulty in performing it in large and heavily infested rice fields. This objective of this work was to evaluate the effects of the use of imazamox herbicide, applied in different rates and times, on plants of Clearfield-rice and red rice. Four experiments were conducted during the 2007/08 and 2008/09 growing seasons, in completely randomized block design and treatments arranged in factorial design, using three replications per treatment. The treatments had increasing rates of imazamox, application times and rice cultivars. The rice cultivars tested were IRGA 417, IRGA 422 CL, Avaxi CL and Puitá INTA CL. The variables evaluated were the number of panicles m -2 , number of grains panicle -1 , spikelet sterility in rice and red rice; and, rice grain yield and its components. The imazamox reduced the seed production of red rice escapes in a simulated situation of commercial Clearfield-rice area. The greater percentage reductions were obtained when this herbicide was applied at final formation of the panicle or panicle exertion of the red rice plant escapes to control. The Puitá INTA CL cultivar has high level of resistance to imazamox, independent of rate and application times tested, becoming the only alternative to the use of this practice. Keywords

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“…One of the most important examples of gene flow between crop and weed occurs with the natural mutant rice tolerant to imidazolinones herbicides (Clearfield ® ) to weedy red rice. After three to four seasons of cultivation of rice resistant to these herbicides, a large number of weedy rice populations were reported as resistant to imidazolines herbicides as a consequence of gene flow from cultivated rice (ZHANG et al, 2006;SHIVRAIN et al, 2009;ROSO et al, 2010;GOULART at al., 2014). Gene flow between crops and weeds is a limitation for the development of transgenic technologies.…”

Section: Containment Of Transgenes Flowmentioning

confidence: 99%

Genetic use restriction technologies and possible applications in the integrated pest management

Dalazen

Júnior

2016

Cienc. Rural

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Genetic use restriction technologies (GURTs) were developed to preserve the intellectual property of genetically modified crops (GM) and ensure the return of investments made by industry to obtain technology delivered through seeds. The aims of this review are to discuss the RESUMO As tecnologias genéticas de restrição de uso (GURTs) foram idealizadas a fim de preservar a propriedade intelectual de culturas geneticamente modificadas (GMs) e garantir o retorno dos investimentos feitos pelas empresas para a obtenção de tecnologias transmitidas via sementes. Os objetivos dessa revisão são discutir as GURTs e analisar suas possíveis aplicações no manejo integrado de pragas agrícolas. Existem duas classes de GURTs: a T-GURT (trait-based GURT), na qual as sementes produzidas são viáveis, porém as plantas da geração seguinte não expressam o caractere de interesse agronômico, e a V-GURT (variety-based GURT), na qual as plantas produzem sementes inviáveis. Contudo, além do propósito da proteção das sementes, o uso de GURTs poderia também ter outras aplicações na resolução de problemas agronômicos. Um dos mais importantes é o uso das GURTs como ferramenta para impedir

show abstract

Regional scale distribution of imidazolinone herbicide-resistant alleles in red rice (Oryza sativa L.) determined through SNP markers

Cited by 52 publications

References 30 publications

Sensitivity of imidazolinone-resistant red rice (Oryza sativa L.) to glyphosate and glufosinate

Sensitivity of imidazolinone-resistant red rice (Oryza sativa L.) to glyphosate and glufosinate

Reduction of seed production of red rice escapes in clearfield rice

Genetic use restriction technologies and possible applications in the integrated pest management

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