Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China

ABSTRACT Beckmannia syzigachne (Steud.) Fernald is one of the main grass weeds severely harming wheat (Triticum aestivum L.) production in rice-wheat areas in China. Fenoxaprop-p-ethyl is the main herbicide used to selectively control grass weed in China. Beckmannia syzigachne has evolved resistance...

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Autores principales:	Li,Lingxu, Luo,Xiaoyong, Wang,Jinxin
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2017
Materias:	ACCase American slough grass amino acid substitution resistant level resistant mechanism.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000200150
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spelling	oai:scielo:S0718-583920170002001502017-11-09Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from ChinaLi,LingxuLuo,XiaoyongWang,Jinxin ACCase American slough grass amino acid substitution resistant level resistant mechanism. ABSTRACT Beckmannia syzigachne (Steud.) Fernald is one of the main grass weeds severely harming wheat (Triticum aestivum L.) production in rice-wheat areas in China. Fenoxaprop-p-ethyl is the main herbicide used to selectively control grass weed in China. Beckmannia syzigachne has evolved resistance to fenoxaprop-p-ethyl due to continuous application. To investigate fenoxaprop-p-ethyl resistant level and mechanism in B. syzigachne in a portion of the rice-wheat area in China, samples from 31 field populations were collected and treated with fenoxaprop-p-ethyl. The results show that 10 of the 31 tested field populations evolved a high level of resistance to fenoxaprop-p-ethyl. A portion of the acetyl-coenzyme A carboxylase (ACCase) gene was amplified, sequenced and aligned. The known Ile-1781-Leu, Ile-1781-Val, Ile-2041-Asn, Asp-2078-Gly and Gly-2096-Ala mutations were identified in five resistant populations. None of the known resistant substitutions was identified in the other five resistant populations, which means the resistance to fenoxaprop-p-ethyl in these populations is likely endowed by non-target-site resistance mechanism.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.77 n.2 20172017-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000200150en10.4067/S0718-58392017000200150
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	ACCase American slough grass amino acid substitution resistant level resistant mechanism.
spellingShingle	ACCase American slough grass amino acid substitution resistant level resistant mechanism. Li,Lingxu Luo,Xiaoyong Wang,Jinxin Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China
description	ABSTRACT Beckmannia syzigachne (Steud.) Fernald is one of the main grass weeds severely harming wheat (Triticum aestivum L.) production in rice-wheat areas in China. Fenoxaprop-p-ethyl is the main herbicide used to selectively control grass weed in China. Beckmannia syzigachne has evolved resistance to fenoxaprop-p-ethyl due to continuous application. To investigate fenoxaprop-p-ethyl resistant level and mechanism in B. syzigachne in a portion of the rice-wheat area in China, samples from 31 field populations were collected and treated with fenoxaprop-p-ethyl. The results show that 10 of the 31 tested field populations evolved a high level of resistance to fenoxaprop-p-ethyl. A portion of the acetyl-coenzyme A carboxylase (ACCase) gene was amplified, sequenced and aligned. The known Ile-1781-Leu, Ile-1781-Val, Ile-2041-Asn, Asp-2078-Gly and Gly-2096-Ala mutations were identified in five resistant populations. None of the known resistant substitutions was identified in the other five resistant populations, which means the resistance to fenoxaprop-p-ethyl in these populations is likely endowed by non-target-site resistance mechanism.
author	Li,Lingxu Luo,Xiaoyong Wang,Jinxin
author_facet	Li,Lingxu Luo,Xiaoyong Wang,Jinxin
author_sort	Li,Lingxu
title	Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China
title_short	Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China
title_full	Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China
title_fullStr	Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China
title_full_unstemmed	Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China
title_sort	resistance level and target-site mechanism to fenoxaprop- p -ethyl in beckmannia syzigachne (steud.) fernald populations from china
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392017000200150
work_keys_str_mv	AT lilingxu resistancelevelandtargetsitemechanismtofenoxaproppethylinbeckmanniasyzigachnesteudfernaldpopulationsfromchina AT luoxiaoyong resistancelevelandtargetsitemechanismtofenoxaproppethylinbeckmanniasyzigachnesteudfernaldpopulationsfromchina AT wangjinxin resistancelevelandtargetsitemechanismtofenoxaproppethylinbeckmanniasyzigachnesteudfernaldpopulationsfromchina
_version_	1714205368631951360

Resistance level and target-site mechanism to fenoxaprop- p -ethyl in Beckmannia syzigachne (Steud.) Fernald populations from China

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