Inheritance of evolved resistance to a novel herbicide [pyroxasulfone]
Agricultural weeds have rapidly adapted to intensive herbicide selection and resistance to herbicides has evolved within ecological timescales. Yet, the genetic basis of broad-spectrum generalist herbicide resistance is largely unknown. This study aims to determine the genetic control of non-target-...
Otros Autores: | , , , |
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Formato: | Artículo |
Lenguaje: | Español |
Materias: | |
Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2014busi.pdf LINK AL EDITOR |
Aporte de: | Registro referencial: Solicitar el recurso aquí |
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245 | 1 | 0 | |a Inheritance of evolved resistance to a novel herbicide [pyroxasulfone] |
520 | |a Agricultural weeds have rapidly adapted to intensive herbicide selection and resistance to herbicides has evolved within ecological timescales. Yet, the genetic basis of broad-spectrum generalist herbicide resistance is largely unknown. This study aims to determine the genetic control of non-target-site herbicide resistance trait[s] that rapidly evolved under recurrent selection of the novel lipid biosynthesis inhibitor pyroxasulfone in Lolium rigidum. The phenotypic segregation of pyroxasulfone resistance in parental, F1 and back-cross [BC] families was assessed in plants exposed to a gradient of pyroxasulfone doses. The inheritance of resistance to chemically dissimilar herbicides [cross-resistance] was also evaluated. Evolved resistance to the novel selective agent [pyroxasulfone] is explained by Mendelian segregation of one semi-dominant allele incrementally herbicide-selected at higher frequency in the progeny. In BC families, cross-resistance is conferred by an incompletely dominant single major locus. This study confirms that herbicide resistance can rapidly evolve to any novel selective herbicide agents by continuous and repeated herbicide use. The results imply that the combination of herbicide options [rotation, mixtures or combinations] to exploit incomplete dominance can provide acceptable control of broad-spectrum generalist resistance-endowing monogenic traits. Herbicide diversity within a set of integrated management tactics can be one important component to reduce the herbicide selection intensity. | ||
653 | 0 | |a ADAPTATION | |
653 | 0 | |a AGRICULTURE | |
653 | 0 | |a BIOLOGICAL EVOLUTION | |
653 | 0 | |a BIOSYNTHESIS | |
653 | 0 | |a DRUG ANTAGONISM | |
653 | 0 | |a EVOLUTION | |
653 | 0 | |a EXPERIMENTAL EVOLUTION | |
653 | 0 | |a GENETIC SELECTION | |
653 | 0 | |a GENETICS | |
653 | 0 | |a HERBICIDE | |
653 | 0 | |a HERBICIDE RESISTANCE | |
653 | 0 | |a HERBICIDES | |
653 | 0 | |a INHERITANCE | |
653 | 0 | |a INHERITANCE PATTERNS | |
653 | 0 | |a ISOXAZOLE DERIVATIVE | |
653 | 0 | |a ISOXAZOLES | |
653 | 0 | |a LIPID | |
653 | 0 | |a LIPIDS | |
653 | 0 | |a LOLIUM | |
653 | 0 | |a LOLIUM | |
653 | 0 | |a PHENOTYPE | |
653 | 0 | |a PLANT SCIENCE | |
653 | 0 | |a PYROXASULFONE | |
653 | 0 | |a SELECTION INTENSITY | |
653 | 0 | |a SELECTION, GENETIC | |
653 | 0 | |a SULFONE | |
653 | 0 | |a SULFONES | |
700 | 1 | |9 67730 |a Busi, Roberto | |
700 | 1 | |a Gaines, Todd A. |9 71662 | |
700 | 1 | |9 9201 |a Vila Aiub, Martín Miguel | |
700 | 1 | |9 67250 |a Powles, Stephen B. | |
773 | |t Plant Science |g vol.217-218 (2014), p.127-134 | ||
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900 | |a ^tInheritance of evolved resistance to a novel herbicide [pyroxasulfone] | ||
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900 | |a Busi, R. Australian Herbicide Resistance Initiative, School of Plant Biology, University of Western Australia, Perth, WA 6009, Australia | ||
900 | |a Gaines, T.A. Australian Herbicide Resistance Initiative, School of Plant Biology, University of Western Australia, Perth, WA 6009, Australia | ||
900 | |a Vila-Aiub, M.M. Australian Herbicide Resistance Initiative, School of Plant Biology, University of Western Australia, Perth, WA 6009, Australia | ||
900 | |a Vila-Aiub, M.M. IFEVA-CONICET, Facultad de Agronomía [UBA], Av. San Martín 4453, C1417DSE Buenos Aires, Argentina | ||
900 | |a Powles, S.B. Australian Herbicide Resistance Initiative, School of Plant Biology, University of Western Australia, Perth, WA 6009, Australia | ||
900 | |a ^tPlant Science^cPlant Sci. | ||
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900 | |a 127 | ||
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900 | |a Vol. 217-218 | ||
900 | |a 134 | ||
900 | |a ADAPTATION | ||
900 | |a AGRICULTURE | ||
900 | |a BIOLOGICAL EVOLUTION | ||
900 | |a BIOSYNTHESIS | ||
900 | |a DRUG ANTAGONISM | ||
900 | |a EVOLUTION | ||
900 | |a EXPERIMENTAL EVOLUTION | ||
900 | |a GENETIC SELECTION | ||
900 | |a GENETICS | ||
900 | |a HERBICIDE | ||
900 | |a HERBICIDE RESISTANCE | ||
900 | |a HERBICIDES | ||
900 | |a INHERITANCE | ||
900 | |a INHERITANCE PATTERNS | ||
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900 | |a SELECTION INTENSITY | ||
900 | |a SELECTION, GENETIC | ||
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900 | |a Agricultural weeds have rapidly adapted to intensive herbicide selection and resistance to herbicides has evolved within ecological timescales. Yet, the genetic basis of broad-spectrum generalist herbicide resistance is largely unknown. This study aims to determine the genetic control of non-target-site herbicide resistance trait[s] that rapidly evolved under recurrent selection of the novel lipid biosynthesis inhibitor pyroxasulfone in Lolium rigidum. The phenotypic segregation of pyroxasulfone resistance in parental, F1 and back-cross [BC] families was assessed in plants exposed to a gradient of pyroxasulfone doses. The inheritance of resistance to chemically dissimilar herbicides [cross-resistance] was also evaluated. Evolved resistance to the novel selective agent [pyroxasulfone] is explained by Mendelian segregation of one semi-dominant allele incrementally herbicide-selected at higher frequency in the progeny. In BC families, cross-resistance is conferred by an incompletely dominant single major locus. This study confirms that herbicide resistance can rapidly evolve to any novel selective herbicide agents by continuous and repeated herbicide use. The results imply that the combination of herbicide options [rotation, mixtures or combinations] to exploit incomplete dominance can provide acceptable control of broad-spectrum generalist resistance-endowing monogenic traits. Herbicide diversity within a set of integrated management tactics can be one important component to reduce the herbicide selection intensity. | ||
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