Cross-resistance pattern to ACCase-inhibiting herbicides in a rare Trp-2027-Ser mutation Chinese sprangletop (Leptochloa chinensis) population

ABSTRACT Chinese sprangletop (Leptochloa chinensis %#91;L.%#93; Nees) is an invasive and troublesome grass weed in the aerobic rice fields in China. The extensive and repeated use of acetyl-CoA carboxylase (ACCase)-inhibiting herbicides has resulted in herbicide resistance in this weed. The objectiv...

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Autores principales: Yuan,Guohui, Tian,Zhihui, Li,Tao, Qian,Zhenguan, Guo,Wenlei, Shen,Guohui
Lenguaje:English
Publicado: Instituto de Investigaciones Agropecuarias, INIA 2021
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000100062
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spelling oai:scielo:S0718-583920210001000622021-02-24Cross-resistance pattern to ACCase-inhibiting herbicides in a rare Trp-2027-Ser mutation Chinese sprangletop (Leptochloa chinensis) populationYuan,GuohuiTian,ZhihuiLi,TaoQian,ZhenguanGuo,WenleiShen,Guohui ACCase-inhibiting herbicide cross-resistance target-site resistance mutation. ABSTRACT Chinese sprangletop (Leptochloa chinensis %#91;L.%#93; Nees) is an invasive and troublesome grass weed in the aerobic rice fields in China. The extensive and repeated use of acetyl-CoA carboxylase (ACCase)-inhibiting herbicides has resulted in herbicide resistance in this weed. The objectives of this study were to determine the resistance levels to ACCase-inhibiting herbicides of the putative resistant Chinese sprangletop population CM9-1, collected from a paddy field in Shanghai city, in comparison to the susceptible population SJ3-1, and to characterize its molecular resistance mechanism. The whole- plant dose-response experiments suggested that the population CM9-1 had high-level resistance to cyhalofop-butyl, metamifop and fenoxaprop-P-ethyl, with resistance index of 27.8, 21.4 and 26.2, respectively, and low-level resistance to sethoxydim and pinoxaden, with resistance index of 2.1 and 2.9, respectively, but was sensitive to clethodim. Sequence analysis of the CT domain of ACCase gene revealed a Trp-2027-Ser mutation in resistant plants of the CM9-1 population. This is the first report of the cross-resistance pattern of the Trp-2027-Ser mutation to ACCase-inhibiting herbicides in Chinese sprangletop.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.81 n.1 20212021-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000100062en10.4067/S0718-58392021000100062
institution Scielo Chile
collection Scielo Chile
language English
topic ACCase-inhibiting herbicide
cross-resistance
target-site resistance mutation.
spellingShingle ACCase-inhibiting herbicide
cross-resistance
target-site resistance mutation.
Yuan,Guohui
Tian,Zhihui
Li,Tao
Qian,Zhenguan
Guo,Wenlei
Shen,Guohui
Cross-resistance pattern to ACCase-inhibiting herbicides in a rare Trp-2027-Ser mutation Chinese sprangletop (Leptochloa chinensis) population
description ABSTRACT Chinese sprangletop (Leptochloa chinensis %#91;L.%#93; Nees) is an invasive and troublesome grass weed in the aerobic rice fields in China. The extensive and repeated use of acetyl-CoA carboxylase (ACCase)-inhibiting herbicides has resulted in herbicide resistance in this weed. The objectives of this study were to determine the resistance levels to ACCase-inhibiting herbicides of the putative resistant Chinese sprangletop population CM9-1, collected from a paddy field in Shanghai city, in comparison to the susceptible population SJ3-1, and to characterize its molecular resistance mechanism. The whole- plant dose-response experiments suggested that the population CM9-1 had high-level resistance to cyhalofop-butyl, metamifop and fenoxaprop-P-ethyl, with resistance index of 27.8, 21.4 and 26.2, respectively, and low-level resistance to sethoxydim and pinoxaden, with resistance index of 2.1 and 2.9, respectively, but was sensitive to clethodim. Sequence analysis of the CT domain of ACCase gene revealed a Trp-2027-Ser mutation in resistant plants of the CM9-1 population. This is the first report of the cross-resistance pattern of the Trp-2027-Ser mutation to ACCase-inhibiting herbicides in Chinese sprangletop.
author Yuan,Guohui
Tian,Zhihui
Li,Tao
Qian,Zhenguan
Guo,Wenlei
Shen,Guohui
author_facet Yuan,Guohui
Tian,Zhihui
Li,Tao
Qian,Zhenguan
Guo,Wenlei
Shen,Guohui
author_sort Yuan,Guohui
title Cross-resistance pattern to ACCase-inhibiting herbicides in a rare Trp-2027-Ser mutation Chinese sprangletop (Leptochloa chinensis) population
title_short Cross-resistance pattern to ACCase-inhibiting herbicides in a rare Trp-2027-Ser mutation Chinese sprangletop (Leptochloa chinensis) population
title_full Cross-resistance pattern to ACCase-inhibiting herbicides in a rare Trp-2027-Ser mutation Chinese sprangletop (Leptochloa chinensis) population
title_fullStr Cross-resistance pattern to ACCase-inhibiting herbicides in a rare Trp-2027-Ser mutation Chinese sprangletop (Leptochloa chinensis) population
title_full_unstemmed Cross-resistance pattern to ACCase-inhibiting herbicides in a rare Trp-2027-Ser mutation Chinese sprangletop (Leptochloa chinensis) population
title_sort cross-resistance pattern to accase-inhibiting herbicides in a rare trp-2027-ser mutation chinese sprangletop (leptochloa chinensis) population
publisher Instituto de Investigaciones Agropecuarias, INIA
publishDate 2021
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000100062
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AT guowenlei crossresistancepatterntoaccaseinhibitingherbicidesinararetrp2027sermutationchinesesprangletopleptochloachinensispopulation
AT shenguohui crossresistancepatterntoaccaseinhibitingherbicidesinararetrp2027sermutationchinesesprangletopleptochloachinensispopulation
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