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Molecular characterization of imidazolinone-resistant Brassica rapa × B. napus hybrids.
Torres Carbonell, Francisco; Ureta, Soledad; Pandolfo, Claudio; Presotto, Alejandro.
Afiliação
  • Torres Carbonell F; Dpto. Agronomía, Universidad Nacional del Sur (UNS), San Andrés 800, 8000, Bahía Blanca, Buenos Aires, Argentina. francisco.torres@uns.edu.ar.
  • Ureta S; Dpto. Agronomía, Universidad Nacional del Sur (UNS), San Andrés 800, 8000, Bahía Blanca, Buenos Aires, Argentina.
  • Pandolfo C; Dpto. Agronomía, Universidad Nacional del Sur (UNS), San Andrés 800, 8000, Bahía Blanca, Buenos Aires, Argentina.
  • Presotto A; CERZOS, Universidad Nacional del Sur (UNS)-CONICET, Camino La Carrindanga Km 7, 8000, Bahía Blanca, Argentina.
Environ Monit Assess ; 192(12): 746, 2020 Nov 04.
Article em En | MEDLINE | ID: mdl-33145668
Herbicide-resistant oilseed rape (Brassica napus) cultivation in our country entails the risk of gene transfer to related wild species. One of these species is the wild turnip (B. rapa), an important weed of winter crops widely distributed in the Pampas region. Despite hybridization risks, Clearfield ® oilseed rape is available in Argentina. In 2008, a B. rapa population, which was sympatric to an imidazolinone-resistant and a conventional oilseed rape cultivar, was located on a farm in the main cropping area of the country. Herbicide-resistant individuals were found in the progeny of this population in a herbicide screening test. Therefore, a molecular characterization using cleaved amplified polymorphic sequence (CAPS) and simple sequence repeat (SSR) markers was conducted on these plants to determine their hybrid nature and to establish the origin of the imidazolinone resistance trait. The results of this study, along with information of field records, confirmed that the resistant plants were first generation interspecific hybrids. Imidazolinone resistance had been effectively transferred from the herbicide-resistant oilseed rape, even in the particular situation of pollen competition. Oilseed rape resistant cultivars are becoming more common in the country. So, considering that seed loss and crop volunteers are common in these species, it is crucial to avoid the dispersion of new resistant weed biotypes as they reduce the effectiveness of chemical control technologies.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Brassica napus / Brassica rapa Limite: Humans País/Região como assunto: America do sul / Argentina Idioma: En Revista: Environ Monit Assess Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Argentina País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
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XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Brassica napus / Brassica rapa Limite: Humans País/Região como assunto: America do sul / Argentina Idioma: En Revista: Environ Monit Assess Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Argentina País de publicação: Holanda