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Khating S, Jadhav N, Vijay M, Sharma AK, Srivastava A, Jadhao S, Kumar S, Kalwaghe S, Siddiqui MFMF, Narawade M, Dhabale A, Chigure G. Current profile of phenotypic pyrethroid resistance in Rhipicephalus microplus (Acari: Ixodidae) populations sampled from Marathwada region of Maharashtra state, India. Parasitol Res 2024; 123:282. [PMID: 39037590 DOI: 10.1007/s00436-024-08306-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
This study examined the pattern of resistance to widely applied synthetic pyrethroids, i.e., cypermethrin and deltamethrin, against larvae of Rhipicephalus microplus ticks sampled from Marathwada region in Maharashtra, India. The study also examined the role of α- and β-esterases and glutathione-S-transferase (GST) in resistance development. All eight R. microplus isolates tested were resistant to deltamethrin (RL IV), having RR50 values from 6.88 to 131.26. LPT analysis exhibited the resistance level II deltamethrin resistance in Beed and Hingoli, III in Dharashiv, and IV in Sambhajinagar, Parbhani, Latur, Jalna, and Nanded isolates. The LIT analysis showed that Dharashiv field isolates had the lowest LC50 value of 229.09 ppm against cypermethrin, while Sambhajinagar field isolates had the highest at 489.78 ppm. The RR50 ranged from 1145.45 to 2448.9. Seven isolates were level I resistant to cypermethrin while the Jalna isolate was level II resistant. In larvae treated with deltamethrin and cypermethrin, the activity of α- and β-esterase enzymes increased significantly compared to control groups. The enzyme ratios in treated larvae ranged from 0.7533 to 1.7023 for α-esterase and 0.7434 to 3.2054 for β-esterase. The Hingoli isolate treated with cypermethrin exhibited the highest α-esterase activity (903.261), whereas Sambhajinagar isolate had the highest GST enzyme ratio (2.8224) after deltamethrin exposure. When exposed to cypermethrin, the Hingoli isolate showed the highest GST enzyme ratio, 2.0832. The present study provides the current resistance status in tick populations from Marathwada region indicating deltamethrin and cypermethrin to be ineffective for tick control. The results also suggest that SP compounds should be regulated in this region and alternative control strategies should be introduced.
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Affiliation(s)
- Sandip Khating
- Department of Veterinary Parasitology, College of Veterinary & Animal Sciences, MAFSU, Parbhani, Maharashtra, India
| | - Nitin Jadhav
- Department of Veterinary Pharmacology & Toxicology, College of Veterinary & Animal Sciences, MAFSU, Parbhani, Maharashtra, India
| | - M Vijay
- DBT-National Institute of Animal Biotechnology, Hyderabad, 500032, Telangana, India
| | - Anil Kumar Sharma
- School of Agriculture, Uttaranchal University, Dehradun, 248007, Uttarakhand, India
| | - Anand Srivastava
- DBT-National Institute of Animal Biotechnology, Hyderabad, 500032, Telangana, India
| | - Suresh Jadhao
- Department of Veterinary Parasitology, Nagpur Veterinary College, MAFSU, Nagpur, Maharashtra, India
| | - Sachin Kumar
- Department of Zoology, Constituent Government College (MJP Rohilkhand University, Bareilly), Meerapur Bangar, Bijnor, 246723, Uttar Pradesh, India
| | - Shrikant Kalwaghe
- Department of Veterinary Parasitology, College of Veterinary & Animal Sciences, MAFSU, Parbhani, Maharashtra, India
| | - M F M F Siddiqui
- Department of Veterinary Medicine, College of Veterinary & Animal Sciences, MAFSU, Parbhani, Maharashtra, India
| | - Mahima Narawade
- Department of Veterinary Parasitology, College of Veterinary & Animal Sciences, MAFSU, Parbhani, Maharashtra, India
| | - Ankush Dhabale
- Department of Veterinary Parasitology, College of Veterinary & Animal Sciences, MAFSU, Parbhani, Maharashtra, India
| | - Gajanan Chigure
- Department of Veterinary Parasitology, College of Veterinary & Animal Sciences, MAFSU, Parbhani, Maharashtra, India.
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Jiang N, Xie T, Li C, Ma R, Gao A, Liu M, Wang S, Zhou Q, Wei X, Li J, Hu W, Feng X. Molecular assessment of voltage-gated sodium channel (VGSC) gene mutations in Rhipicephalus microplus from Guangxi, China. Parasit Vectors 2024; 17:307. [PMID: 39014392 PMCID: PMC11253372 DOI: 10.1186/s13071-024-06383-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Accepted: 06/29/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND Pyrethroid chemicals are one of the main acaricides used against ticks. Resistance to these chemicals has been reported to be associated with mutations in the voltage-gated sodium channel (VGSC) gene of the Rhipicephalus microplus. This study investigates R. microplus resistance to pyrethroids in Guangxi region of China, marking one of the first research efforts in this area. The findings are intended to provide vital baseline for the effective implementation of localized tick control strategies. METHODS From March to July 2021, 447 R. microplus tick samples were collected from five prefecture-level cities in Guangxi. Allele-specific polymerase chain reaction (AS-PCR) was used to amplify segments C190A and G215T of the domain II S4-5 linker and T2134A of domain III S6 in the VGSC, to detect nucleotide mutations associated with resistance to pyrethroid acaricides. Subsequent analyses were conducted to ascertain the prevalence, types of mutations, and genotypic distributions within the sampled populations. RESULTS Mutations within VGSC gene were identified across all five studied populations of R. microplus, although the mutation rates remained generally low. Specifically, the most prevalent mutation was C190A, observed in 4.9% of the samples (22/447), followed by G215T at 4.0% (18/447), and T2134A at 1.3% (6/447). The distribution of mutations across three critical sites of the VGSC gene revealed four distinct mutation types: C190A, G215T, C190A + G215T, and T2134A. Notably, the single mutation C190A had the highest mutation frequency, accounting for 4.3%, and the C190A + G215T combination had the lowest, at only 0.7%. The analysis further identified seven genotypic combinations, with the wild-type combination C/C + G/G + T/T predominating at a frequency of 90.4%. Subsequently, the C/A + G/G + T/T combination was observed at a frequency of 4.3%, whereas the C/C + T/T + T/T combination exhibited the lowest frequency (0.2%). Additionally, no instances of simultaneous mutations at all three sites were detected. Geographical differences in mutation types were apparent. Both samples from Hechi to Chongzuo cities exhibited the same three mutation types; however, C190A was the most prevalent in Hechi, while G215T dominated in Chongzuo. In contrast, samples from Beihai to Guilin each exhibited only one mutation type: G215T occurred in 12.5% (4/32) of Beihai samples, and C190A in 7.5% (4/53) of Guilin samples. CONCLUSIONS These findings underscore the relatively low frequency of VGSC gene mutations in R. microplus associated with pyrethroid resistance in the Guangxi, China. Moreover, the variation in mutation types and genotypic distributions across different locales highlights the need for regionalized strategies in monitoring and managing pyrethroid resistance in tick populations. This molecular surveillance is crucial for informing targeted control measures and mitigating the risk of widespread resistance emergence.
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Affiliation(s)
- Na Jiang
- College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Ting Xie
- Hechi Animal Disease Prevention and Control Center, Hechi, Guangxi, China
| | - Chunfu Li
- College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Rui Ma
- College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Ai Gao
- College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Mengyun Liu
- College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Shurong Wang
- College of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Qingan Zhou
- Guangxi Center for Animal Disease Control and Prevention, Nanning, Guangxi, China
| | - Xiankai Wei
- Guangxi Center for Animal Disease Control and Prevention, Nanning, Guangxi, China
| | - Jian Li
- College of Life Sciences, Inner Mongolia University, Hohhot, China.
- Basic Medical College, Guangxi University of Chinese Medicine, Nanning, Guangxi, China.
| | - Wei Hu
- College of Life Sciences, Inner Mongolia University, Hohhot, China.
- Department of Infectious Diseases, Huashan Hospital, State Key Laboratory of Genetic Engineering, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, China.
| | - Xinyu Feng
- School of Global Health, Chinese Center for Tropical Diseases Research, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
- One Health Center, Shanghai Jiao Tong University-The University of Edinburgh, Shanghai, 20025, China.
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Obaid MK, Almutairi MM, Alouffi A, Safi SZ, Tanaka T, Ali A. Assessment of cypermethrin and amitraz resistance and molecular profiling of voltage-gated sodium channel and octopamine tyramine genes of Rhipicephalus microplus. Front Cell Infect Microbiol 2023; 13:1176013. [PMID: 37305408 PMCID: PMC10248163 DOI: 10.3389/fcimb.2023.1176013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/14/2023] [Indexed: 06/13/2023] Open
Abstract
Control of ticks and tick-borne pathogens is a priority for human and animal health. Livestock-holders extensively rely on acaricide applications for tick control. Different groups of acaricides including cypermethrin and amitraz have been consistently used in Pakistan. There has been a gap in understanding the susceptibility or resistance of Rhipicephalus microplus, the most prevalent tick in Pakistan, to acaricides. The present study aimed to molecularly characterize cypermethrin and amitraz targeted genes such as voltage-gated sodium channel (VGSC) and octopamine tyramine (OCT/Tyr) of R. microplus ticks in Khyber Pakhtunkhwa (KP), Pakistan to monitor the acaricides resistance. Tick specimens were collected from cattle and buffaloes in northern (Chitral, Shangla, Swat, Dir, and Buner), central (Peshawar, Mardan, Charsadda, Swabi, and Nowshera), and southern districts (Kohat, Karak, Lakki Marwat, Tank, and Dera Ismail Khan) of KP, Pakistan. Different concentrations of commercially available cypermethrin (10%) and amitraz (12.5%) were prepared for in vitro larval immersion tests (LIT). In LIT, the average mortality rate of immersed larvae was recorded that was increased gradually with an increase in the concentration of specific acaricide. The larvae's highest mortality rates (94.5% and 79.5%) were observed at 100-ppm of cypermethrin and amitraz, respectively. A subset of 82 R. microplus ticks was subjected to extract genomic DNA, followed by PCR to amplify partial fragments of VGSC (domain-II) and OCT/Tyr genes. The BLAST results of the consensus sequence of VGSC gene (domain-II) showed 100% identity with the acaricides susceptible tick sequence from the United States (reference sequence). Obtained identical sequences of OCT/Tyr genes showed maximum identity (94-100%) with the identical sequences reported from Australia (reference sequence), India, Brazil, Philippines, USA, South Africa, and China. Thirteen single nucleotide polymorphisms (10 synonymous and three non-synonymous) were observed at various positions of partial OCT/Tyr gene fragments. The SNP at position A-22-C (T-8-P) in OCT/Tyr gene has been linked to amitraz resistance in R. microplus ticks. Molecular analysis and LIT bioassay's findings indicate the availability of resistant R. microplus ticks in the KP region. To our understanding, this is the first preliminary study to monitor cypermethrin and amitraz resistance via molecular profiling of cypermethrin and amitraz targeted genes (VGSC and OCT/Tyr) in combination with in vitro bioassays (LIT) in R. microplus ticks from Pakistan.
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Affiliation(s)
| | - Mashal M. Almutairi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Abdulaziz Alouffi
- King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Sher Zaman Safi
- Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom, Selangor, Malaysia
| | - Tetsuya Tanaka
- Laboratory of Infectious Diseases, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Abid Ali
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Pakistan
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Obaid MK, Islam N, Alouffi A, Khan AZ, da Silva Vaz I, Tanaka T, Ali A. Acaricides Resistance in Ticks: Selection, Diagnosis, Mechanisms, and Mitigation. Front Cell Infect Microbiol 2022; 12:941831. [PMID: 35873149 PMCID: PMC9299439 DOI: 10.3389/fcimb.2022.941831] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/02/2022] [Indexed: 11/13/2022] Open
Abstract
Ticks are blood-feeding ecto-parasites that have a cosmopolitan distribution in tropical and subtropical regions of the world. Ticks cause economic losses in the form of reduced blood, meat and dairy products, as well as pathogen transmission. Different acaricides such as organochlorines, organophosphates, formamidines (e.g. amitraz), synthetic pyrethroids, macrocyclic lactones, fipronil, and fluazuron are currently used sequentially or simultaneously to control tick infestations. Most acaricide treatments now face increasingly high chances of failure, due to the resistance selection in different tick populations against these drugs. Acaricide resistance in ticks can be developed in different ways, including amino acid substitutions that result in morphological changes in the acaricide target, metabolic detoxification, and reduced acaricide entry through the outer layer of the tick body. The current literature brings a plethora of information regarding the use of different acaricides for tick control, resistance selection, analysis of mutations in target sites, and resistance mitigation. Alternatives such as synergistic use of different acaricides, plant-derived phytochemicals, fungi as biological control agents, and anti-tick vaccines have been recommended to avoid and mitigate acaricide resistance. The purpose of this review was to summarize and discuss different acaricides applied for tick control, their mechanisms of action and resistance selection, genetic polymorphisms in their target molecules, as well as the approaches used for diagnosis and mitigation of acaricide resistance, specifically in Rhipicephalus microplus ticks.
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Affiliation(s)
| | - Nabila Islam
- Department of Chemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Abdulaziz Alouffi
- King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Alam Zeb Khan
- Department of Pediatrics, Yale School of Medicine Yale University, New Haven, CT, United States
| | - Itabajara da Silva Vaz
- Centro de Biotecnologia and Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Tetsuya Tanaka
- Laboratory of Infectious Diseases, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Abid Ali
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Pakistan
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Tang B, Xu K, Liu Y, Zhou Z, Karthi S, Yang H, Li C. A review of physiological resistance to insecticide stress in Nilaparvata lugens. 3 Biotech 2022; 12:84. [PMID: 35251886 PMCID: PMC8882538 DOI: 10.1007/s13205-022-03137-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/02/2022] [Indexed: 01/02/2023] Open
Abstract
Insecticides are widely used in agriculture as effective means to control pests. However, pests have not been completely mitigated with the increased use of insecticides. Instead, many side effects have arisen, especially the '3Rs' (resistance, resurgence, and residue). The brown planthopper, Nilaparvata lugens, is one of the most threatening rice pests. The main insecticides for controlling N. lugens belong to organochlorine, organophosphorus, carbamate, neonicotinoid and pyrethroid groups. However, metabolic enzymes, including cytochrome P450s, esterases, glutathione-S-transferases, and ATP-binding cassette transporters, effectively promote the detoxification of insecticides. Besides, mutations of neurological target sites, such as acetylcholinesterase, nicotinic acetylcholine, γ-aminobutyric acid receptor, and ryanodine receptor, result in insensitivity to insecticides. Here, we review the physiological metabolic resistance in N. lugens under insecticide stress to provide a theoretical basis for identifying and developing more effective and harmless insecticides.
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Affiliation(s)
- Bin Tang
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, 550005 People’s Republic of China ,College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121 Zhejiang People’s Republic of China
| | - Kangkang Xu
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, 550005 People’s Republic of China ,Institute of Entomology, Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Guizhou University, Guiyang, 550025 People’s Republic of China
| | - Yongkang Liu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 311121 Zhejiang People’s Republic of China
| | - Zhongshi Zhou
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, 550005 People’s Republic of China
| | - Sengodan Karthi
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412 India
| | - Hong Yang
- Institute of Entomology, Provincial Key Laboratory for Agricultural Pest Management of Mountainous Regions, Guizhou University, Guiyang, 550025 People’s Republic of China
| | - Can Li
- Guizhou Provincial Key Laboratory for Rare Animal and Economic Insect of the Mountainous Region, Department of Biology and Engineering of Environment, Guiyang University, Guiyang, 550005 People’s Republic of China
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