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Zhou Z, Jiang Q, Qiu Z, Hou X, Yang X, Yang Y, Hao T, Guo D, Wang J, Li Y, Liu Q, Ling X, Zhang B. Differential Resistance to Acetyl-CoA Carboxylase Inhibitors in Rice: Insights from Two Distinct Target-Site Mutations. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12029-12044. [PMID: 38752706 DOI: 10.1021/acs.jafc.4c01889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Weeds present a significant challenge to agricultural productivity, and acetyl-CoA carboxylase (ACCase)-inhibiting herbicides have proven to be effective in managing weed populations in rice fields. To develop ACCase-inhibiting herbicide-resistant rice, we generated mutants of rice ACCase (OsACC) featuring Ile-1792-Leu or Gly-2107-Ser substitutions through ethyl methyl sulfonate (EMS) mutagenesis. The Ile-1792-Leu mutant displayed cross-resistance to aryloxyphenoxypropionate (APP) and phenylpyrazoline (DEN) herbicides, whereas the Gly-2107-Ser mutants primarily exhibited cross-resistance to APP herbicides with diminished resistance to the DEN herbicide. In vitro assays of the OsACC activity revealed an increase in resistance to haloxyfop and quizalofop, ranging from 4.84- to 29-fold in the mutants compared to that in wild-type. Structural modeling revealed that both mutations likely reduce the binding affinity between OsACC and ACCase inhibitors, thereby imparting resistance. This study offers insights into two target-site mutations, contributing to the breeding of herbicide-resistant rice and presenting alternative weed management strategies in rice cultivation.
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Affiliation(s)
- Zhenzhen Zhou
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Qun Jiang
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya Hainan 572025, China
| | - Zeyu Qiu
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Xiaodong Hou
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Xia Yang
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Yuwen Yang
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Tingting Hao
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Dongshu Guo
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Jinyan Wang
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Yongfeng Li
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Qing Liu
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
- College of Agriculture, Yangzhou University, Yangzhou Jiangsu 225009, China
| | - Xitie Ling
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
| | - Baolong Zhang
- Provincial Key Laboratory of Agrobiology and Institute of Germplasm Resources and Biotechnology, Jiangsu Academy of Agricultural Sciences, Nanjing Jiangsu 210014, China
- Zhongshan Biological Breeding Laboratory, Nanjing Jiangsu 210014, China
- Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya Hainan 572025, China
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Li N, Chen K, Han S, Wang S, He Y, Wang X, Li P, Ji L, Liu R, Lei K. Synthesis, Herbicidal Activity, and Molecular Mode of Action Evaluation of Novel Aryloxyphenoxypropionate/Amide Derivatives Containing a Quinazolinone Moiety. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38599785 DOI: 10.1021/acs.jafc.3c08097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
To develop aryloxyphenoxypropionate herbicides with a novel structure and improved activity, a total of 39 aryloxyphenoxypropionate/amide derivatives containing quinazolinone moiety were synthesized and further bioevaluated. The bioassay results in the greenhouse showed that most of the target compounds had good herbicidal activity under postemergence conditions, of which, QPP-I-6 displayed excellent herbicidal activity against Echinochloa crusgalli, Digitaria sanguinalis, Spartina alterniflora, Eleusine indica, and Pennisetum alopecuroides with inhibition rates >90% at a dosage of 187.5 g ha-1. More importantly, QPP-I-6 displayed higher crop safety to Gossypium hirsutum, Glycine max, and Arachis hypogaea than the commercial herbicide quizalofop-p-ethyl. Studying the molecular mode of action by phenotypic observation, membrane permeability evaluation, transcriptomic analysis, and in vivo ACCase activity evaluation reveals that QPP-I-6 is a novel ACCase inhibitor. The present work demonstrates that QPP-I-6 can serve as a lead compound for further developing novel ACCase-inhibiting herbicides.
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Affiliation(s)
- Na Li
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, P. R. China
| | - Ke Chen
- Department of Biotechnology, The University of Suwon, Hwaseong, Gyeonggi-Do 18323, Republic of Korea
| | - Shibo Han
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, P. R. China
| | - Shumin Wang
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, P. R. China
| | - Yanqin He
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, P. R. China
| | - Xuekun Wang
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, P. R. China
| | - Pan Li
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, P. R. China
| | - Lusha Ji
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, P. R. China
| | - Rui Liu
- Department of Biotechnology, The University of Suwon, Hwaseong, Gyeonggi-Do 18323, Republic of Korea
| | - Kang Lei
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, P. R. China
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Cao J, Tao Y, Zhang Z, Gu T, Li G, Lou Y, Wang H. Mechanism of metamifop resistance in Digitaria ciliaris var. chrysoblephara from Jiangsu, China. FRONTIERS IN PLANT SCIENCE 2023; 14:1133798. [PMID: 36895875 PMCID: PMC9989310 DOI: 10.3389/fpls.2023.1133798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Digitaria ciliaris var. chrysoblephara is one of the most competitive and problematic grass weeds in China. Metamifop is an aryloxyphenoxypropionate (APP) herbicide that inhibits the activity of acetyl-CoA carboxylase (ACCase) of sensitive weeds. Following the introduction of metamifop to China in 2010, it has been continuously used in rice paddy fields, thereby substantially increasing selective pressure for resistant D. ciliaris var. chrysoblephara variants. Here, populations of D. ciliaris var. chrysoblephara (JYX-8, JTX-98, and JTX-99) were observed to be highly resistant to metamifop, with resistance index (RI) values of 30.64, 14.38, and 23.19, respectively. Comparison of resistant and sensitive population ACCase gene sequences revealed that a single nucleotide substitution from TGG to TGC resulted in an amino acid substitution from tryptophan to cysteine at position 2,027 in the JYX-8 population. No corresponding substitution was observed for JTX-98 and JTX-99 populations. The ACCase cDNA of D. ciliaris var. chrysoblephara was successfully obtained by PCR and RACE methods, representing the first amplification of full length ACCase cDNA from Digitaria spp. Investigation of the relative expressions of ACCase gene revealed the lack of significant differences between sensitive and resistant populations before and after herbicide treatments. ACCase activities in resistant populations were less inhibited than in sensitive populations and recovered to the same or even higher levels compared to untreated plants. Whole-plant bioassays were also conducted to assess resistance to other ACCase inhibitors, acetolactate synthase (ALS) inhibitors, auxin mimic herbicide, and protoporphyrinogen oxidase (PPO) inhibitor. Cross-resistance and some multi-resistance were observed in the metamifop-resistant populations. This study is the first to focus on the herbicide resistance of D. ciliaris var. chrysoblephara. These results provide evidence for a target-site resistance mechanism in metamifop-resistant D. ciliaris var. chrysoblephara, while providing a better understanding of cross- and multi-resistance characteristics of resistant populations that will help in the management of herbicide-resistant D. ciliaris var. chrysoblephara.
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Panozzo S, Farinati S, Sattin M, Scarabel L. Can allele-specific loop-mediated isothermal amplification be used for rapid detection of target-site herbicide resistance in Lolium spp.? PLANT METHODS 2023; 19:14. [PMID: 36750938 PMCID: PMC9906911 DOI: 10.1186/s13007-023-00989-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Herbicide resistance is one of the threats to modern agriculture and its early detection is one of the most effective components for sustainable resistance management strategies. Many techniques have been used for target-site-resistance detection. Allele-Specific Loop-Mediated Isothermal Amplification (AS-LAMP) was evaluated as a possible rapid diagnostic method for acetyl-CoA carboxylase (ACCase) and acetolactate synthase (ALS) inhibiting herbicides resistance in Lolium spp. RESULTS AS-LAMP protocols were set up for the most frequent mutations responsible for herbicide resistance to ALS (positions 197, 376 and 574) and ACCase (positions 1781, 2041 and 2078) inhibitors in previously characterized and genotyped Lolium spp. POPULATIONS A validation step on new putative resistant populations gave the overview of a possible use of this tool for herbicide resistance diagnosis in Lolium spp. Regarding the ACCase inhibitor pinoxaden, in more than 65% of the analysed plants, the LAMP assay and genotyping were in keeping, whereas the results were not consistent when ALS inhibitors resistance was considered. Limitations on the use of this technique for herbicide resistance detection in the allogamous Lolium spp. are discussed. CONCLUSIONS The LAMP method used for the detection of target-site resistance in weed species could be applicable with target genes that do not have high genetic variability, such as ACCase gene in Lolium spp.
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Affiliation(s)
- Silvia Panozzo
- Institute for Sustainable Plant Protection (IPSP) - National Research Council (CNR), viale dell'Università 16, 35020, Legnaro, PD, Italy.
| | - Silvia Farinati
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Padova, Italy
| | - Maurizio Sattin
- Institute for Sustainable Plant Protection (IPSP) - National Research Council (CNR), viale dell'Università 16, 35020, Legnaro, PD, Italy
| | - Laura Scarabel
- Institute for Sustainable Plant Protection (IPSP) - National Research Council (CNR), viale dell'Università 16, 35020, Legnaro, PD, Italy
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Zhang Y, Chen L, Song W, Cang T, Xu M, Wu C. Diverse mechanisms associated with cyhalofop-butyl resistance in Chinese sprangletop ( Leptochloa chinensis (L.) Nees): Characterization of target-site mutations and metabolic resistance-related genes in two resistant populations. FRONTIERS IN PLANT SCIENCE 2022; 13:990085. [PMID: 36518516 PMCID: PMC9742530 DOI: 10.3389/fpls.2022.990085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 11/14/2022] [Indexed: 05/25/2023]
Abstract
Resistance of Chinese sprangletop (Leptochloa chinensis (L.) Nees) to the herbicide cyhalofop-butyl has recently become a severe problem in rice cultivation. However, the molecular mechanisms of target-site resistance (TSR) in cyhalofop-butyl-resistant L. chinensis as well as the underlying non-target-site resistance (NTSR) have not yet been well-characterized. This study aimed to investigate cyhalofop-butyl resistance mechanisms using one susceptible population (LC-S) and two resistant populations (LC-1701 and LC-1704) of L. chinensis. We analyzed two gene copies encoding the entire carboxyltransferase (CT) domain of chloroplastic acetyl-CoA carboxylase (ACCase) from each population. Two non-synonymous substitutions were detected in the resistant L. chinensis populations (Trp2027-Cys in the ACCase1 of LC-1701 and Leu1818-Phe in the ACCase2 of LC-1704), which were absent in LC-S. As Trp2027-Cys confers resistance to ACCase-inhibiting herbicides, the potential relationship between the novel Leu1818-Phe mutation and cyhalofop-butyl resistance in LC-1704 was further explored by single-nucleotide polymorphism (SNP) detection. Metabolic inhibition assays indicated that cytochrome P450 monooxygenases (P450s) and glutathione S-transferases (GSTs) contributed to cyhalofop-butyl resistance in specific resistant populations. RNA sequencing showed that the P450 genes CYP71Z18, CYP71C4, CYP71C1, CYP81Q32, and CYP76B6 and the GST genes GSTF11, GSTF1, and GSTU6 were upregulated in at least one resistant population, which indicated their putative roles in cyhalofop-butyl resistance of L. chinensis. Correlation analyses revealed that the constitutive or inducible expression patterns of CYP71C4, CYP71C1, GSTF1, and GSTU6 in L. chinensis were strongly associated with the resistant phenotype. For this reason, attention should be directed towards these genes to elucidate metabolic resistance to cyhalofop-butyl in L. chinensis. The findings of this study improve the understanding of mechanisms responsible for resistance to ACCase-inhibiting herbicides in grass-weed species at the molecular level, thus aiding in the development of weed management strategies that delay the emergence of resistance to this class of pest control products.
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Kaundun SS, Downes J, Jackson LV, Hutchings SJ, Mcindoe E. Impact of a Novel W2027L Mutation and Non-Target Site Resistance on Acetyl-CoA Carboxylase-Inhibiting Herbicides in a French Lolium multiflorum Population. Genes (Basel) 2021; 12:genes12111838. [PMID: 34828444 PMCID: PMC8620607 DOI: 10.3390/genes12111838] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 11/24/2022] Open
Abstract
Herbicides that inhibit acetyl-CoA carboxylase (ACCase) are among the few remaining options for the post-emergence control of Lolium species in small grain cereal crops. Here, we determined the mechanism of resistance to ACCase herbicides in a Lolium multiflorum population (HGR) from France. A combined biological and molecular approach detected a novel W2027L ACCase mutation that affects aryloxyphenoxypropionate (FOP) but not cyclohexanedione (DIM) or phenylpyraxoline (DEN) subclasses of ACCase herbicides. Both the wild-type tryptophan and mutant leucine 2027-ACCase alleles could be positively detected in a single DNA-based-derived polymorphic amplified cleaved sequence (dPACS) assay that contained the targeted PCR product and a cocktail of two discriminating restriction enzymes. Additionally, we identified three well-characterised I1781L, I2041T, and D2078G ACCase target site resistance mutations as well as non-target site resistance in HGR. The non-target site component endowed high levels of resistance to FOP herbicides whilst partially impacting on the efficacy of pinoxaden and cycloxydim. This study adequately assessed the contribution of the W2027L mutation and non-target site mechanism in conferring resistance to ACCase herbicides in HGR. It also highlights the versatility and robustness of the dPACS method to simultaneously identify different resistance-causing alleles at a single ACCase codon.
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Wang J, Peng Y, Chen W, Yu Q, Bai L, Pan L. The Ile-2041-Val mutation in the ACCase gene confers resistance to clodinafop-propargyl in American sloughgrass (Beckmannia syzigachne Steud). PEST MANAGEMENT SCIENCE 2021; 77:2425-2432. [PMID: 33432736 DOI: 10.1002/ps.6271] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/19/2020] [Accepted: 01/11/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Exploring the mechanisms of herbicide resistance in weeds is an important part of designing resistance management strategies and rationalizing herbicide use. Beckmannia syzigachne is one of the most important agricultural weeds in China. Long-term use of acetyl-CoA carboxylase (ACCase)-inhibiting herbicides has led to the evolution of herbicide resistance in B. syzigachne. ACCase-inhibiting herbicides comprise three chemical families: aryloxyphenoxypropionates (APPs), cyclohexanediones (CHDs) and phenylpyraxoline (DENs). RESULTS Based on whole-plant dose-response experiments, a B. syzigachne population (BS-R) was confirmed to be 12- and 20-fold resistant to the APP herbicides quizalofop-P-ethyl and clodinafop-propargyl, and 2.2-, 2.8- and 2.8-fold resistant to fenoxaprop-P-ethyl, the CHD herbicide sethoxydim and the PPZ herbicide pinoxaden, respectively, compared with its susceptible counterpart (BS-S). Resistance to clodinafop-propargyl in the BS-R population could not be reversed by the known cytochrome P450 (CYP450) inhibitor malathion and the glutathione S-transferase (GST) inhibitor 4-chloro-7-nitrobenzoxadiazole. In addition, no difference in CYP450 and GST activity was confirmed between the BS-R and BS-S populations. ACCase gene sequencing revealed an Ile-2041-Val mutation in the BS-R population. A derived cleaved amplified polymorphic sequence marker was developed for rapid detection of the specific Ile-2041-Val mutation. Correlation quantification of resistance in homo- and hetero-resistant versus wild-type plants showed that resistance to clodinafop-propargyl in this population is conferred by the Ile-2041-Val mutation. CONCLUSION Unlike previous reports on the unique cross-resistance pattern conferred by the 2041 mutation, this study demonstrates that the Ile-2041-Val mutation in BS-R population confers resistance to certain ACCase-inhibiting APP, CHD and PPZ herbicides in B. syzigachne. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Junzhi Wang
- Longping Branch, Graduate School of Hunan University, Changsha, 410125, China
| | - Yajun Peng
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
- Hunan Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
| | - Wen Chen
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Qin Yu
- Australian Herbicide Resistance Initiative, School of Agriculture and Environment, University of Western Australia, Perth, 6009, Australia
| | - Lianyang Bai
- Longping Branch, Graduate School of Hunan University, Changsha, 410125, China
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
- Hunan Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
| | - Lang Pan
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
- Hunan Agricultural Biotechnology Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
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Noguera MM, Rangani G, Heiser J, Bararpour T, Steckel LE, Betz M, Porri A, Lerchl J, Zimmermann S, Nichols RL, Roma-Burgos N. Functional PPO2 mutations: co-occurrence in one plant or the same ppo2 allele of herbicide-resistant Amaranthus palmeri in the US mid-south. PEST MANAGEMENT SCIENCE 2021; 77:1001-1012. [PMID: 32990410 DOI: 10.1002/ps.6111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 09/22/2020] [Accepted: 09/29/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND Protoporphyrinogen IX oxidase 2 (PPO2) inhibitors are important for the management of glyphosate- and acetolactate synthase-resistant Palmer amaranth [Amaranthus palmeri (S.) Wats.]. The evolving resistance to PPO inhibitors is of great concern. We surveyed the evolution of resistance to fomesafen in the US Mid-south and determined its correlation with the known functional PPO2 target-site mutations (TSM). RESULTS The 167 accessions analyzed were grouped into five categories, four resistant (147) and one susceptible (20). Arkansas accessions constituted 100% of the susceptible group while the Missouri accessions comprised 60% of the most resistant category. The majority of Mississippi accessions (88%) clustered in the high-survival-high-injury category, manifesting an early-stage resistance evolution. One hundred and fifteen accessions were genotyped for four known TSMs; 74% of accessions carried at least one TSM. The most common single TSM was ΔG210 (18% of accessions) and the predominant double mutation was ΔG210 + G399A (17%). Other mutations are likely less favorable, hence are rare. All TSMs were detected in three accessions. Further examination revealed that 9 and two individuals carried G399A + G210 and G399A + R128G TSM in the same allele, respectively. The existence of these combinations is supported by molecular modeling. CONCLUSIONS Resistance to PPO inhibitors is widespread across the Mid-southern USA. Highly resistant field populations have plants with multiple mutations. G399A is the most prone to co-occur with other ppo2 mutations in the same allele. Mutation at R128 in the configuration of the PPO2 catalytic domain restrains the co-occurrence of R128G with ΔG210, making ΔG210 + G399A the most plausible, tolerable functional mutation combination to co-occur in the same ppo2 allele.
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Affiliation(s)
- Matheus M Noguera
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AK, USA
| | - Gulab Rangani
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AK, USA
| | - James Heiser
- Food & Natural Resources, Fisher Delta Research Center, University of Missouri College of Agriculture, Portageville, MO, USA
| | - Taghi Bararpour
- Delta Research and Extension Center, Mississippi State University, Stoneville, MS, USA
| | | | | | | | | | | | | | - Nilda Roma-Burgos
- Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AK, USA
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Zhao N, Ge L, Yan Y, Bai S, Wang D, Liu W, Wang J. Trp-1999-Ser mutation of acetyl-CoA carboxylase and cytochrome P450s-involved metabolism confer resistance to fenoxaprop-P-ethyl in Polypogon fugax. PEST MANAGEMENT SCIENCE 2019; 75:3175-3183. [PMID: 30950550 DOI: 10.1002/ps.5435] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/28/2019] [Accepted: 04/01/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Asia minor bluegrass (Polypogon fugax Nees ex Steud.) is an invasive grass species severely infesting wheat and canola fields in China. In May 2017, a suspected resistant P. fugax population AHHY that survived fenoxaprop-P-ethyl applied at its field-recommended rate was collected from a wheat field in Huaiyuan County, Anhui Province, China. This study aimed to determine the resistance profile of AHHY to acetyl-CoA carboxylase (ACCase) inhibitors and to investigate its mechanisms of resistance to fenoxaprop. RESULTS Single-dose testing indicated that the AHHY population had evolved resistance to fenoxaprop. The partial carboxyltransferase domain of ACCase in P. fugax was amplified and compared. Four loci encoding plastidic ACCase were isolated from both the resistant and sensitive individuals. Combining gene sequencing with the derived cleaved amplified polymorphic sequence assay, we found that 100% of the plants of AHHY carried Trp-1999-Ser mutation in their ACCase1,1-2 allele. Whole-plant dose-response bioassay indicated that AHHY was highly resistant to fenoxaprop and pinoxaden (resistance index (RI) ≥ 10) with low resistance to clodinafop-propargyl, sethoxydim, and clethodim (2 ≤ RI < 5). Pre-treatment with piperonyl butoxide largely reduced (55%) the weed's resistance to fenoxaprop. Both basal and fenoxaprop-induced glutathione S-transferases activities toward 1-chloro-2, 4-dinitrobenzene were significantly higher in resistant plants than in susceptible plants. CONCLUSION This study revealed that P. fugax had multiple alleles encoding plastidic ACCase, and reported for the first time the occurrence of Trp-1999-Ser mutation and non-target-site resistance in this species. Fenoxaprop resistance in AHHY plants was conferred by target-site mutation and P450s-involved enhanced metabolism. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Ning Zhao
- College of Plant Protection, Shandong Agricultural University, Tai'an, China
- Key Laboratory of Pesticide Toxicology and Application Technology, Shandong Agricultural University, Tai'an, China
| | - Lu'an Ge
- College of Plant Protection, Shandong Agricultural University, Tai'an, China
- Key Laboratory of Pesticide Toxicology and Application Technology, Shandong Agricultural University, Tai'an, China
| | - Yanyan Yan
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China
| | - Shuang Bai
- College of Plant Protection, Shandong Agricultural University, Tai'an, China
- Key Laboratory of Pesticide Toxicology and Application Technology, Shandong Agricultural University, Tai'an, China
| | - Dandan Wang
- College of Plant Protection, Shandong Agricultural University, Tai'an, China
- Key Laboratory of Pesticide Toxicology and Application Technology, Shandong Agricultural University, Tai'an, China
| | - Weitang Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, China
- Key Laboratory of Pesticide Toxicology and Application Technology, Shandong Agricultural University, Tai'an, China
| | - Jinxin Wang
- College of Plant Protection, Shandong Agricultural University, Tai'an, China
- Key Laboratory of Pesticide Toxicology and Application Technology, Shandong Agricultural University, Tai'an, China
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Non-Target-Site Resistance to Herbicides: Recent Developments. PLANTS 2019; 8:plants8100417. [PMID: 31618956 PMCID: PMC6843234 DOI: 10.3390/plants8100417] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 01/07/2023]
Abstract
Non-target-site resistance (NTSR) to herbicides in weeds can be conferred as a result of the alteration of one or more physiological processes, including herbicide absorption, translocation, sequestration, and metabolism. The mechanisms of NTSR are generally more complex to decipher than target-site resistance (TSR) and can impart cross-resistance to herbicides with different modes of action. Metabolism-based NTSR has been reported in many agriculturally important weeds, although reduced translocation and sequestration of herbicides has also been found in some weeds. This review focuses on summarizing the recent advances in our understanding of the physiological, biochemical, and molecular basis of NTSR mechanisms found in weed species. Further, the importance of examining the co-existence of TSR and NTSR for the same herbicide in the same weed species and influence of environmental conditions in the altering and selection of NTSR is also discussed. Knowledge of the prevalence of NTSR mechanisms and co-existing TSR and NTSR in weeds is crucial for designing sustainable weed management strategies to discourage the further evolution and selection of herbicide resistance in weeds.
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Kaundun SS, Marchegiani E, Hutchings SJ, Baker K. Derived Polymorphic Amplified Cleaved Sequence (dPACS): A Novel PCR-RFLP Procedure for Detecting Known Single Nucleotide and Deletion-Insertion Polymorphisms. Int J Mol Sci 2019; 20:E3193. [PMID: 31261867 PMCID: PMC6651057 DOI: 10.3390/ijms20133193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/21/2019] [Accepted: 06/27/2019] [Indexed: 12/21/2022] Open
Abstract
Most methods developed for detecting known single nucleotide polymorphisms (SNP) and deletion-insertion polymorphisms (DIP) are dependent on sequence conservation around the SNP/DIP and are therefore not suitable for application to heterogeneous organisms. Here we describe a novel, versatile and simple PCR-RFLP procedure baptised 'derived Polymorphic Amplified Cleaved Sequence' (dPACS) for genotyping individual samples. The notable advantage of the method is that it employs a pair of primers that cover the entire fragment to be amplified except for one or few diagnostic bases around the SNP/DIP being investigated. As such, it provides greater opportunities to introduce mismatches in one or both of the 35-55 bp primers for creating a restriction site that unambiguously differentiates wild from mutant sequences following PCR-RFLP and horizontal MetaPhorTM gel electrophoresis. Selection of effective restriction enzymes and primers is aided by the newly developed dPACS 1.0 software. The highly transferable dPACS procedure is exemplified here with the positive detection (in up to 24 grass and broadleaf species tested) of wild type proline106 of 5-enolpyruvylshikimate-3-phosphate synthase and its serine, threonine and alanine variants that confer resistance to glyphosate, and serine264 and isoleucine2041 which are key target-site determinants for weed sensitivities to some photosystem II and acetyl-CoA carboxylase inhibiting herbicides, respectively.
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Affiliation(s)
- Shiv Shankhar Kaundun
- Herbicide Bioscience, Syngenta Ltd., Jealott's Hill International Research Centre, RG42 6EY Bracknell, UK.
| | - Elisabetta Marchegiani
- Herbicide Bioscience, Syngenta Ltd., Jealott's Hill International Research Centre, RG42 6EY Bracknell, UK
| | - Sarah-Jane Hutchings
- Herbicide Bioscience, Syngenta Ltd., Jealott's Hill International Research Centre, RG42 6EY Bracknell, UK
| | - Ken Baker
- General Bioinformatics, Jealott's Hill International Research Centre, RG42 6EY Bracknell, UK
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Du L, Qu M, Jiang X, Li X, Ju Q, Lu X, Wang J. Fitness costs associated with acetyl-coenzyme A carboxylase mutations endowing herbicide resistance in American sloughgrass ( Beckmannia syzigachne Steud.). Ecol Evol 2019; 9:2220-2230. [PMID: 30847106 PMCID: PMC6392401 DOI: 10.1002/ece3.4917] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 11/27/2018] [Accepted: 12/28/2018] [Indexed: 01/07/2023] Open
Abstract
Weed resistance to herbicide can be conferred by gene mutations, and some mutations can cause pleiotropic effects in some cases. We investigated the pleiotropic effects associated with five specific ACCase mutations (Ile1781Leu, Trp2027Cys, Ile2041Asn, Asp2078Gly, and Gly2096Ala) on the plant growth, seed production, and resource competitiveness in American sloughgrass.Resistant plants (M/M) homozygous for specific ACCase mutation and susceptible wild-type plants (W/W) were derived from single heterozygous mother plant (M/W) by genotyping. Plant growth assay and neighborhood experiments were performed to quantify variation between M/M plants and W/W plants.The Ile1781Leu mutation resulted in slight increases in plant growth in pure stands and improved resource competitiveness under low-competition conditions in pot experiments, but no clear variation was observed under high competitive pressure or field conditions. During competition with wheat plants under field conditions, American sloughgrass plants containing Ile2041Asn ACCase exhibited a significantly lower (12.5%) aboveground biomass but no distinct differences in seed production or resource competitiveness. No significant detrimental pleiotropic effects associated with Gly2096Ala were detected in American sloughgrass.The Trp2027Cys mutation distinctly reduced seed production, especially under high competitive pressure, but did not significantly alter plant growth. The Asp2078Gly mutation consistently reduced not only plant growth and seed production but also resource competitiveness. Synthesis. The Trp2027Cys and Asp2078Gly mutations led to significant fitness costs, which may reduce the frequency of resistance alleles and reduce the propagation speed of resistant weeds in the absence of ACCase inhibitor herbicides. The Ile1781Leu, Ile2041Asn, and Gly2096Ala mutations displayed no obvious fitness costs or displayed very small fitness penalties, which would likely have no effect on the establishment of resistant weeds in the field.
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Affiliation(s)
- Long Du
- Pest Bio‐control LabShandong Peanut Research InstituteQingdaoChina
| | - Mingjing Qu
- Pest Bio‐control LabShandong Peanut Research InstituteQingdaoChina
| | - Xiaojing Jiang
- Pest Bio‐control LabShandong Peanut Research InstituteQingdaoChina
| | - Xiao Li
- Pest Bio‐control LabShandong Peanut Research InstituteQingdaoChina
| | - Qian Ju
- Pest Bio‐control LabShandong Peanut Research InstituteQingdaoChina
| | - Xingtao Lu
- Institute of Plant ProtectionTai'an Academy of Agricultural SciencesTai'anChina
| | - Jinxin Wang
- College of Plant ProtectionShandong Agricultural UniversityTai'anChina
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Zhang M, Liu C, Yang J, Yang P, Zhang L, Dong J. Analysis of the herbicidal mechanism of 4-hydroxy-3-methoxy cinnamic acid ethyl ester using iTRAQ and real-time PCR. J Proteomics 2017; 159:47-53. [DOI: 10.1016/j.jprot.2017.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 02/17/2017] [Accepted: 02/21/2017] [Indexed: 02/07/2023]
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Raghav N, Singh R, Chhokar RS, Sharma D, Kumar R. Mutations in the plastidic ACCase gene endowing resistance to ACCase-inhibiting herbicide in Phalaris minor populations from India. 3 Biotech 2016; 6:12. [PMID: 28330082 PMCID: PMC4701707 DOI: 10.1007/s13205-015-0331-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 06/23/2015] [Indexed: 11/27/2022] Open
Abstract
Littleseed canarygrass (Phalaris minor Retz.) is one of the most common and troublesome weeds infesting wheat crop in India. Repeated use during the last two decades of the ACCase-inhibiting herbicide (clodinafop) to control this weed has resulted in the occurrence of resistance. Fifty-three P. minor populations were collected from wheat fields in Haryana and Punjab states of India. The dose-response assays indicated that 29 populations were resistant, 23 populations were susceptible and one population was moderately resistant to clodinafop. Sequence analysis of the CT domain of ACCase gene among resistant and susceptible populations revealed two non-synonymous mutations, Trp2027 to Cys and Ile2041 to Asn in the resistant populations. Allele-specific PCR markers were developed to differentiate between wild-type and resistant codons at positions 2027 and 2041 of ACCase in P. minor which enables molecular assays for rapid detection and resistance diagnosis for efficient weed management in wheat. This is the first report from India of a target site mutation corresponding to resistance to clodinafop in P. minor.
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Affiliation(s)
- Nishu Raghav
- ICAR-Indian Institute of Wheat and Barley Research, Post Box 158, Karnal, 132001, India
- Maharishi Markandeshwar University, Mullana, India
| | - Rajender Singh
- ICAR-Indian Institute of Wheat and Barley Research, Post Box 158, Karnal, 132001, India.
| | | | - Davinder Sharma
- ICAR-Indian Institute of Wheat and Barley Research, Post Box 158, Karnal, 132001, India
| | - Raman Kumar
- Maharishi Markandeshwar University, Mullana, India
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15
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Du L, Liu W, Yuan G, Guo W, Li Q, Wang J. Cross-resistance patterns to ACCase-inhibitors in American sloughgrass (Beckmannia syzigachne Steud.) homozygous for specific ACCase mutations. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2016; 126:42-8. [PMID: 26778433 DOI: 10.1016/j.pestbp.2015.07.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 07/21/2015] [Accepted: 07/23/2015] [Indexed: 05/13/2023]
Abstract
American sloughgrass is a troublesome annual grass weed in winter wheat field rotated with rice in China. The overreliance on acetyl-coenzyme A carboxylase (ACCase) inhibiting herbicides has resulted in resistance evolution in this weed. In this study, the cross-resistance patterns to fenoxaprop-p-ethyl, clodinafop-propargyl, fluazifop-p-butyl, haloxyfop-p-methyl, sethoxydim, clethodim and pinoxaden were established using purified plants individually homozygous for specific mutant ACCase alleles. Results indicated that 1781Leu allele endows high-level resistance to APPs, CHDs and pinoxaden while confers moderate resistance to haloxyfop-p-methyl. The 2027Cys and 2041Asn alleles endow high-level resistance to APPs and pinoxaden and lower level resistance to CHDs. The 2078Gly allele confers high-level resistance to all herbicides tested in this study, however, moderate resistance to sethoxydim. The 2096Ala very likely endows high-level resistance to fluazifop-p-butyl, haloxyfop-p-methyl and moderate resistance to sethoxydim. In addition, one undefined resistance mechanism was involved in population SD-04.
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Affiliation(s)
- Long Du
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong Tai'an 271018, PR China
| | - Weitang Liu
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong Tai'an 271018, PR China
| | - Guohui Yuan
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong Tai'an 271018, PR China
| | - Wenlei Guo
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong Tai'an 271018, PR China
| | - Qi Li
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong Tai'an 271018, PR China
| | - Jinxin Wang
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong Tai'an 271018, PR China.
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Guo W, Yuan G, Liu W, Bi Y, Du L, Zhang C, Li Q, Wang J. Multiple resistance to ACCase and AHAS-inhibiting herbicides in shortawn foxtail (Alopecurus aequalis Sobol.) from China. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 124:66-72. [PMID: 26453232 DOI: 10.1016/j.pestbp.2015.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 04/10/2015] [Accepted: 04/13/2015] [Indexed: 05/04/2023]
Abstract
Shortawn foxtail (Alopecurus aequalis) is a troublesome grass weed infesting winter wheat and oilseed rape productions in China. Fenoxaprop-p-ethyl and mesosulfuron-methyl failed to control shortawn foxtail of AHSX-1 population collected from a wheat field in Shou County, Anhui province. Molecular analyses revealed that Asp2078Gly mutation of ACCase and Trp574Leu mutation of AHAS were present in plants of the AHSX-1 population. The homozygous plants were isolated and cultured until seed maturity. Whole-plant herbicide bioassays were conducted in the greenhouse using the purified seeds of F1 generation. Dose-response experiments showed that the AHSX-1 population has evolved a very high level resistance to fenoxaprop-p-ethyl (RI = 275) and mesosulfuron-methyl (RI = 788). To determine the sensitivity to other herbicides, assays were conducted at the single recommended rate of each herbicide. Based on the results, the AHSX-1 population was considered to be highly resistant to clodinafop-propargyl, pyroxsulam and flucarbazone-sodium, moderately or highly resistant to quizalofop-p-ethyl, clethodim, sethoxydim and pinoxaden, and susceptible to isoproturon and chlorotoluron. This is the first report of Asp2078Gly mutation in shortawn foxtail and the two robust dCAPS markers designed could quickly detect Asp2078 and Trp574 mutations in ACCase and AHAS gene of shortawn foxtail, respectively.
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Affiliation(s)
- Wenlei Guo
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Guohui Yuan
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Weitang Liu
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yaling Bi
- College of Agronomy, Anhui Science and Technology University, Fengyang, Anhui 233100, China
| | - Long Du
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Chao Zhang
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Qi Li
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Jinxin Wang
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China.
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Yuan G, Liu W, Bi Y, Du L, Guo W, Wang J. Molecular basis for resistance to ACCase-inhibiting herbicides in Pseudosclerochloa kengiana populations. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 119:9-15. [PMID: 25868811 DOI: 10.1016/j.pestbp.2015.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 03/04/2015] [Accepted: 03/05/2015] [Indexed: 06/04/2023]
Abstract
Pseudosclerochloa kengiana is a troublesome annual grass weed of wheat fields in the rice-wheat double cropping areas in China. Resistance has evolved in P. kengiana under continuously selective pressure of ACCase-inhibiting herbicides. Whole-plant experiments showed that two suspected resistant populations 12-SD-12 and 12-SD-13 were highly resistant to fenoxaprop-P-ethyl (69.9- and 57.2-fold); moderately resistant to clodinafop-propargyl (5.9- and 4.1-fold) and pinoxaden (4.4- and 3.5-fold); lowly resistant to fluazifop-P-butyl (2.2- and 2.0-fold) and sethoxydim (1.8- and 1.6-fold), but were sensitive to clethodim (1.0- and 0.9-fold) and mesosulfuron-methyl (1.1- and 0.9-fold). Molecular analyses confirmed that a Trp1999 to Ser mutation was present in the resistant populations. Two dCAPS markers were also developed to positively determine the wild type Trp and mutant Ser alleles at ACCase position 1999. All 350 individual plants of 12-SD-12 population analysed were heterozygous mutants. Meanwhile, 318 mutant heterozygotes and 32 wild types were detected from the 12-SD-13 population. In addition, the analysis of plant genotype and phenotype showed that all wild type plants were killed after treatment with any one of the ACCase-inhibiting herbicides used, while individual plants carrying the W1999S mutation survived except when treated with clethodim. To our knowledge, this is the first report of pinoxaden resistance and a Trp-1999-Ser mutation in the plastid ACCase for P. kengiana.
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Affiliation(s)
- Guohui Yuan
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Weitang Liu
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yaling Bi
- College of Plant Science, Anhui Science and Technology University, Fengyang, Anhui 233100, China
| | - Long Du
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Wenlei Guo
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Jinxin Wang
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, China.
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Pan L, Li J, Xia W, Zhang D, Dong L. An effective method, composed of LAMP and dCAPS, to detect different mutations in fenoxaprop-P-ethyl-resistant American sloughgrass (Beckmannia syzigachne Steud.) populations. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 117:1-8. [PMID: 25619905 DOI: 10.1016/j.pestbp.2014.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 10/09/2014] [Accepted: 10/10/2014] [Indexed: 05/20/2023]
Abstract
The decreased susceptibility of Beckmannia syzigachne to fenoxaprop-P-ethyl is due to the reliance on it to control grass weeds since the 1990s. Loop-mediated isothermal amplification (LAMP), which is a proven simple, rapid, specific, sensitive and inexpensive assay method, has been used to detect the I1781L mutation in B. syzigachne. In the present study, four sets of primers detected four mutations in B. syzigachne, W2027C, I2041A, D2078G and G2096A, using the LAMP method. Additionally, five newly derived cleaved amplified polymorphic sequence (dCAPS) markers were developed to detect five different mutations. With a method composed of LAMP and dCAPS, 19 fenoxaprop-P-ethyl-resistant B. syzigachne populations collected in 2013 were studied. An effective method, composed of LAMP and dCAPS, to detect five mutations, I1781L, W2027C, I2041A, D2078G and G2096A, in B. syzigachne populations was developed. With this method, a B. syzigachne population resistant to fenoxaprop-P-ethyl can be studied to confirm its constitution. And we determined that the resistance level might be relevant to the mutation type and mutation frequency. The type of mutation and its frequency in fenoxaprop-P-ethyl-resistant B. syzigachne populations can be confirmed to provide appropriate herbicide management.
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Affiliation(s)
- Lang Pan
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Jun Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Wenwen Xia
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Di Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China
| | - Liyao Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Nanjing Agricultural University), Ministry of Education, Nanjing 210095, China.
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Xu H, Zhang W, Zhang T, Li J, Wu X, Dong L. Determination of ploidy level and isolation of genes encoding acetyl-CoA carboxylase in Japanese Foxtail (Alopecurus japonicus). PLoS One 2014; 9:e114712. [PMID: 25503308 PMCID: PMC4263612 DOI: 10.1371/journal.pone.0114712] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 11/13/2014] [Indexed: 11/21/2022] Open
Abstract
Ploidy level is important in biodiversity studies and in developing strategies for isolating important plant genes. Many herbicide-resistant weed species are polyploids, but our understanding of these polyploid weeds is limited. Japanese foxtail, a noxious agricultural grass weed, has evolved herbicide resistance. However, most studies on this weed have ignored the fact that there are multiple copies of target genes. This may complicate the study of resistance mechanisms. Japanese foxtail was found to be a tetraploid by flow cytometer and chromosome counting, two commonly used methods in the determination of ploidy levels. We found that there are two copies of the gene encoding plastidic acetyl-CoA carboxylase (ACCase) in Japanese foxtail and all the homologous genes are expressed. Additionally, no difference in ploidy levels or ACCase gene copy numbers was observed between an ACCase-inhibiting herbicide-resistant and a herbicide-sensitive population in this study.
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Affiliation(s)
- Hongle Xu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Wenpan Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- National Key Laboratory of Crop Genetic & Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing, China
| | - Teng Zhang
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Jun Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Xian Wu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
| | - Liyao Dong
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, Beijing, China
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Xu H, Li J, Zhang D, Cheng Y, Jiang Y, Dong L. Mutations at codon position 1999 of acetyl-CoA carboxylase confer resistance to ACCase-inhibiting herbicides in Japanese foxtail (Alopecurus japonicus). PEST MANAGEMENT SCIENCE 2014; 70:1894-1901. [PMID: 24497328 DOI: 10.1002/ps.3753] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/27/2014] [Accepted: 01/27/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND The intensive and global application of ACCase-inhibiting herbicides has resulted in the evolution of resistance in a growing number of grass weeds. Among the mutations implicated in conferring resistance, limited knowledge is available regarding mutations at codon position 1999. In addition, multiple copies of genes encoding plastidic ACCase have been ignored in previous studies of resistance in Alopecurus japonicus. RESULTS Dose-response tests indicated that the population JLGY-4 had evolved high-level resistance to fenoxaprop-P-ethyl. The carboxyltransferase domain of the ACCase gene in A. japonicus was sequenced and compared. Two loci encoding plastidic ACCase were isolated from both the resistant and sensitive populations. Simultaneously, two resistance-endowing mutations at codon position 1999 of ACCase were determined (W1999C and W1999L). Moreover, a molecular study was conducted to determine the mechanism of resistance to some ACCase-inhibiting herbicides. The W1999C mutation conferred resistance to fenoxaprop and moderate resistance to pinoxaden. The W1999L mutation conferred resistance to fenoxaprop. CONCLUSION This study revealed that A. japonicus had multiple copies of genes encoding plastidic ACCase, and each gene was able to carry its own mutation. It also established the clear importance of the W1999C and W1999L mutations in conferring resistance to ACCase-inhibiting herbicides.
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Affiliation(s)
- Hongle Xu
- College of Plant Protection, Nanjing Agricultural University, Nanjing, China; Key Laboratory of Integrated Pest Management on Crops in East China (Nanjing Agricultural University), Ministry of Agriculture, China
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Kaundun SS. Resistance to acetyl-CoA carboxylase-inhibiting herbicides. PEST MANAGEMENT SCIENCE 2014; 70:1405-17. [PMID: 24700409 DOI: 10.1002/ps.3790] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 03/21/2014] [Accepted: 04/03/2014] [Indexed: 05/12/2023]
Abstract
Resistance to acetyl-CoA carboxylase herbicides is documented in at least 43 grass weeds and is particularly problematic in Lolium, Alopecurus and Avena species. Genetic studies have shown that resistance generally evolves independently and can be conferred by target-site mutations at ACCase codon positions 1781, 1999, 2027, 2041, 2078, 2088 and 2096. The level of resistance depends on the herbicides, recommended field rates, weed species, plant growth stages, specific amino acid changes and the number of gene copies and mutant ACCase alleles. Non-target-site resistance, or in essence metabolic resistance, is prevalent, multigenic and favoured under low-dose selection. Metabolic resistance can be specific but also broad, affecting other modes of action. Some target-site and metabolic-resistant biotypes are characterised by a fitness penalty. However, the significance for resistance regression in the absence of ACCase herbicides is yet to be determined over a practical timeframe. More recently, a fitness benefit has been reported in some populations containing the I1781L mutation in terms of vegetative and reproductive outputs and delayed germination. Several DNA-based methods have been developed to detect known ACCase resistance mutations, unlike metabolic resistance, as the genes remain elusive to date. Therefore, confirmation of resistance is still carried out via whole-plant herbicide bioassays. A growing number of monocotyledonous crops have been engineered to resist ACCase herbicides, thus increasing the options for grass weed control. While the science of ACCase herbicide resistance has progressed significantly over the past 10 years, several avenues provided in the present review remain to be explored for a better understanding of resistance to this important mode of action.
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Affiliation(s)
- Shiv S Kaundun
- Syngenta, Jealott's Hill International Research Centre, Biological Sciences, Bracknell, Berkshire, UK
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Li L, Du L, Liu W, Yuan G, Wang J. Target-site mechanism of ACCase-inhibitors resistance in American sloughgrass (Beckmannia syzigachne Steud.) from China. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2014; 110:57-62. [PMID: 24759052 DOI: 10.1016/j.pestbp.2014.03.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 01/13/2014] [Accepted: 03/05/2014] [Indexed: 05/13/2023]
Abstract
American sloughgrass (Beckmannia syzigachne) is a troublesome weed in winter wheat field rotated with rice in China. Fenoxaprop-p-ethyl and pinoxaden were observed failing to control American sloughgrass in the same filed in Lujiang county in 2011 and 2012, respectively. Whole-plant bioassay was conducted to determine the resistance to fenoxaprop-p-ethyl, pinoxaden and other herbicides in American sloughgrass. Dose-response experiment indicated that Lujiang population was highly resistant to fenoxaprop-p-ethyl (199.8-fold), pinoxaden (76.2-fold), clodinafop-propargyl (334.1-fold) and sethoxydim (15.9-fold); moderately resistant to clethodim (6.3-fold), susceptible to mesosulfuron-methyl, flucarbazone-sodium, pyroxsulam and isoproturon. Partial gene of CT domain was cloned and sequenced to confirm the molecular mechanism of resistance to ACCase-inhibiting herbicides. A Trp2027Cys mutation was found in Lujiang population according to the sequencing result. This mutation is the molecular mechanism of resistance to fenoxaprop-p-ethyl in Lujiang population. Furthermore the Trp2027Cys mutation very likely results in cross resistance to clodinafop-propargyl and pinoxaden in Lujiang population. 103 mutant homozygotes were detected from the 108 plants tested using a rapid dCAPS method developed in this paper. This is the first report of pinoxaden resistance and a mutation at position of 2027 for American sloughgrass.
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Affiliation(s)
- Lingxu Li
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong, PR China; College of Chemistry and Pharmaceutical Science, Qingdao Agricultural University, Qingdao 266109, Shandong, PR China
| | - Long Du
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong, PR China
| | - Weitang Liu
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong, PR China
| | - Guohui Yuan
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong, PR China
| | - Jinxin Wang
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong, PR China.
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Tang W, Zhou F, Chen J, Zhou X. Resistance to ACCase-inhibiting herbicides in an Asia minor bluegrass (Polypogon fugax) population in China. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2014; 108:16-20. [PMID: 24485310 DOI: 10.1016/j.pestbp.2013.11.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Revised: 10/21/2013] [Accepted: 11/18/2013] [Indexed: 06/03/2023]
Abstract
Asia minor bluegrass (Polypogon fugax) is a common annual grass weed of winter crops distributed across China. We conducted a study on the resistance level and the mechanism of resistance to ACCase-inhibiting herbicides in a P. fugax population from China. Whole-plant dose-response experiments in greenhouse showed that the resistant P. fugax population was 1991, 364, 269, 157, and 8-fold resistant to clodinafop-propargyl, fluazifop-p-butyl, haloxyfop-R-methyl, quizalofop-p-ethyl and fenoxaprop-p-ethyl relative to the reference susceptible population, which was susceptible to all the five AOPP herbicides. Much lower R/S values of 3.5, 2.4 and 3.5, respectively, were detected for clethodim, sethoxydim and pinoxaden. Molecular analysis of resistance confirmed that the Ile2041 to Asn mutation in the resistant population conferred resistance to AOPP herbicides, but not to CHD and DEN herbicides. This is the first report of a target site mutation that corresponded to resistance to AOPP herbicides in P. fugax. Proper resistance management practices are necessary to prevent ACCase-inhibiting herbicides from becoming ineffective over wide areas.
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Affiliation(s)
- Wei Tang
- Zhejiang Branch of National Pesticide R&D South Center, Zhejiang Chemical Industry Research Institute, Hangzhou 310023, China
| | - Fengyan Zhou
- Institute of Plant Protection and Agro-Products Safety, Anhui Academy of Agricultural Sciences, Hefei 230031, China
| | - Jie Chen
- Zhejiang Branch of National Pesticide R&D South Center, Zhejiang Chemical Industry Research Institute, Hangzhou 310023, China.
| | - Xiaogang Zhou
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China
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Liu W, Bi Y, Li L, Yuan G, Du L, Wang J. Target-site basis for resistance to acetolactate synthase inhibitor in Water chickweed (Myosoton aquaticum L.). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2013; 107:50-54. [PMID: 25149235 DOI: 10.1016/j.pestbp.2013.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 05/06/2013] [Indexed: 06/03/2023]
Abstract
Water chickweed is a widespread and competitive winter annual or biennial weed of wheat in China. One Water chickweed population (HN02) resistant to several acetolactate synthase (ALS) inhibitors was found in Henan province of China. Whole-plant bioassays showed that HN02 was high resistance to tribenuron (292.05-flod). In vitro ALS assays revealed that resistance was due to reduced sensitivity of the ALS enzyme to tribenuron. The I50 value for HN02 was 85.53 times greater respectively than that of susceptible population (SD05). This altered ALS sensitivity in the resistant population was due to a mutation in the ALS gene resulting in a Pro197 to Ser substitution. Cross-resistance experiments indicated that HN02 exhibited various resistance patterns to pyrithiobac-sodium, florasulam and pyroxsulam, without resistance to imazethapyr. This is the first report of tribenuron-resistant Water chickweed in Henan province of China, target-site based resistance was established as being due to an insensitive form of ALS, resulting from a Pro to Ser substitution at amino acid position 197 in the ALS gene.
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Affiliation(s)
- Weitang Liu
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong, Tai'an 271018, PR China
| | - Yaling Bi
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong, Tai'an 271018, PR China; College of Plant Science, Anhui Science and Technology University, Anhui, Fengyang 233100, PR China
| | - Lingxu Li
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong, Tai'an 271018, PR China; College of Chemistry and Pharmacy Science, Qingdao Agricultural University, Shandong, Qingdao 266109, PR China
| | - Guohui Yuan
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong, Tai'an 271018, PR China
| | - Long Du
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong, Tai'an 271018, PR China
| | - Jinxin Wang
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Shandong, Tai'an 271018, PR China.
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