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Li M, Feng X, Reid WR, Tang F, Liu N. Multiple-P450 Gene Co-Up-Regulation in the Development of Permethrin Resistance in the House Fly, Musca domestica. Int J Mol Sci 2023; 24:ijms24043170. [PMID: 36834582 PMCID: PMC9959456 DOI: 10.3390/ijms24043170] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/17/2023] [Accepted: 01/24/2023] [Indexed: 02/09/2023] Open
Abstract
This paper reports a study conducted at the whole transcriptome level to characterize the P450 genes involved in the development of pyrethroid resistance, utilizing expression profile analyses of 86 cytochrome P450 genes in house fly strains with different levels of resistance to pyrethroids/permethrin. Interactions among the up-regulated P450 genes and possible regulatory factors in different autosomes were examined in house fly lines with different combinations of autosomes from a resistant house fly strain, ALHF. Eleven P450 genes that were significantly up-regulated, with levels > 2-fold those in the resistant ALHF house flies, were in CYP families 4 and 6 and located on autosomes 1, 3 and 5. The expression of these P450 genes was regulated by trans- and/or cis-acting factors, especially on autosomes 1 and 2. An in vivo functional study indicated that the up-regulated P450 genes also conferred permethrin resistance in Drosophila melanogaster transgenic lines. An in vitro functional study confirmed that the up-regulated P450 genes are able to metabolize not only cis- and trans-permethrin, but also two metabolites of permethrin, PBalc and PBald. In silico homology modeling and the molecular docking methodology further support the metabolic capacity of these P450s for permethrin and substrates. Taken together, the findings of this study highlight the important function of multi-up-regulated P450 genes in the development of insecticide resistance in house flies.
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Affiliation(s)
- Ming Li
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
- Department of Entomology, University of California, San Diego, CA 92093, USA
| | - Xuechun Feng
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
- Institute of Infectious Diseases, Shenzhen Bay Laboratory, Shenzhen 518000, China
| | - William R. Reid
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
- Department of Biochemistry, State University of New York at Buffalo, Buffalo, NY 14203, USA
| | - Fang Tang
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China
| | - Nannan Liu
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
- Correspondence: ; Tel.: +1-334-844-5076
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Liu N, Li T, Wang Y, Liu S. G-Protein Coupled Receptors (GPCRs) in Insects-A Potential Target for New Insecticide Development. Molecules 2021; 26:2993. [PMID: 34069969 PMCID: PMC8157829 DOI: 10.3390/molecules26102993] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/10/2021] [Accepted: 05/12/2021] [Indexed: 02/07/2023] Open
Abstract
G-protein coupled receptors (GPCRs) play important roles in cell biology and insects' physiological processes, toxicological response and the development of insecticide resistance. New information on genome sequences, proteomic and transcriptome analysis and expression patterns of GPCRs in organs such as the central nervous system in different organisms has shown the importance of these signaling regulatory GPCRs and their impact on vital cell functions. Our growing understanding of the role played by GPCRs at the cellular, genome, transcriptome and tissue levels is now being utilized to develop new targets that will sidestep many of the problems currently hindering human disease control and insect pest management. This article reviews recent work on the expression and function of GPCRs in insects, focusing on the molecular complexes governing the insect physiology and development of insecticide resistance and examining the genome information for GPCRs in two medically important insects, mosquitoes and house flies, and their orthologs in the model insect species Drosophila melanogaster. The tissue specific distribution and expression of the insect GPCRs is discussed, along with fresh insights into practical aspects of insect physiology and toxicology that could be fundamental for efforts to develop new, more effective, strategies for pest control and resistance management.
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Affiliation(s)
- Nannan Liu
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA; (T.L.); (Y.W.)
| | - Ting Li
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA; (T.L.); (Y.W.)
| | - Yifan Wang
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA; (T.L.); (Y.W.)
| | - Shikai Liu
- College of Fisheries, Ocean University of China, Qingdao 266100, China;
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Liu N, Wang Y, Li T, Feng X. G-Protein Coupled Receptors (GPCRs): Signaling Pathways, Characterization, and Functions in Insect Physiology and Toxicology. Int J Mol Sci 2021; 22:ijms22105260. [PMID: 34067660 PMCID: PMC8156084 DOI: 10.3390/ijms22105260] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 02/06/2023] Open
Abstract
G-protein-coupled receptors (GPCRs) are known to play central roles in the physiology of many organisms. Members of this seven α-helical transmembrane protein family transduce the extracellular signals and regulate intracellular second messengers through coupling to heterotrimeric G-proteins, adenylate cyclase, cAMPs, and protein kinases. As a result of the critical function of GPCRs in cell physiology and biochemistry, they not only play important roles in cell biology and the medicines used to treat a wide range of human diseases but also in insects’ physiological functions. Recent studies have revealed the expression and function of GPCRs in insecticide resistance, improving our understanding of the molecular complexes governing the development of insecticide resistance. This article focuses on the review of G-protein coupled receptor (GPCR) signaling pathways in insect physiology, including insects’ reproduction, growth and development, stress responses, feeding, behaviors, and other physiological processes. Hormones and polypeptides that are involved in insect GPCR regulatory pathways are reviewed. The review also gives a brief introduction of GPCR pathways in organisms in general. At the end of the review, it provides the recent studies on the function of GPCRs in the development of insecticide resistance, focusing in particular on our current knowledge of the expression and function of GPCRs and their downstream regulation pathways and their roles in insecticide resistance and the regulation of resistance P450 gene expression. The latest insights into the exciting technological advances and new techniques for gene expression and functional characterization of the GPCRs in insects are provided.
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Affiliation(s)
- Nannan Liu
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA; (Y.W.); (T.L.)
- Correspondence: ; Tel.: +1-334-844-5076
| | - Yifan Wang
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA; (Y.W.); (T.L.)
| | - Ting Li
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA; (Y.W.); (T.L.)
| | - Xuechun Feng
- Department of Biology Sciences, University of California, San Diego, CA 92093, USA;
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Lu K, Song Y, Zeng R. The role of cytochrome P450-mediated detoxification in insect adaptation to xenobiotics. CURRENT OPINION IN INSECT SCIENCE 2021; 43:103-107. [PMID: 33387688 DOI: 10.1016/j.cois.2020.11.004] [Citation(s) in RCA: 116] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 05/27/2023]
Abstract
Insect cytochrome P450 monooxygenases (P450s) are well known to be involved in metabolic detoxification of xenobiotics, such as phytochemicals, insecticides and environmental pollutants. Enhanced metabolic detoxification is closely associated with the constitutive overexpression and induction of P450s. In general, multiple insect P450s are co-responsible for xenobiotic detoxification. Considering the capacity of P450s to respond to a wide range of xenobiotics, synergistic interactions between natural and synthetic xenobiotics and P450-mediated cross-tolerance/resistance are ubiquitous. Recent studies have indicated that both transcription factors and signaling pathways are involved in the regulation of P450 genes in xenobiotic responses. This article reviews our current understanding of P450-mediated detoxification in insect adaptation to xenobiotics and highlights recent progress in the molecular basis of P450 regulation.
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Affiliation(s)
- Kai Lu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yuanyuan Song
- Institute of Crop Resistance and Chemical Ecology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Rensen Zeng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Institute of Crop Resistance and Chemical Ecology, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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Ali HS, Khaled AS, Hamouda LS, Ghallab EH. Comparative Molecular Description of a Novel GST Gene in Culex pipiens (Diptera: Culicidae). JOURNAL OF MEDICAL ENTOMOLOGY 2020; 57:1440-1446. [PMID: 32322876 DOI: 10.1093/jme/tjaa075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Indexed: 06/11/2023]
Abstract
Repeated exposure to insecticides, particularly pyrethroids and organophosphates, has resulted in the development of insecticide resistance in the mosquito Culex pipiens, a primary disease vector. Glutathione S-transferase (GST) is involved in the phase II detoxification of numerous xenobiotics, including insecticides. In this study, a GST gene (CPIJ002678) was amplified, sequenced, and used in comprehensive molecular analyses ending up in development of a rapid assay to distinguish more tolerant individuals from susceptible Culex pipiens using the Restriction Fragment Length Polymorphism (RFLP) technique. Field collected Culex pipiens strains from untreated areas, organophosphates-treated areas and a lab strain reared for many generations, all were used in CDC bottle bioassays to evaluate the susceptibility status of the studied individuals to malathion insecticide. Interestingly, both field sites collected groups showed high levels of resistance at the malathion diagnostic time. Gene amplification, and bidirectional direct sequencing results were analyzed. Compared with the reference genome sequence, the pairwise alignment of the amplified sequences showed 96.6% similarity to the reference sequence in the GenBank database. The confirmed gene sequences were assembled and aligned using various bioinformatic softwares. The assembled contigs were used in NEBcutter V2.0 for constructing restriction maps and checked for the availability of differences (if present) between susceptible and more tolerant strains. Specific molecular RFLP markers were successfully recognized to differentiate the more tolerant from the susceptible Culex pipiens phenotypes.
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Affiliation(s)
- Hagar Samy Ali
- Entomology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | | | - Laila Sayed Hamouda
- Entomology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Enas Hamdy Ghallab
- Entomology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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Cao C, Sun L, Du H, Moural TW, Bai H, Liu P, Zhu F. Physiological functions of a methuselah-like G protein coupled receptor in Lymantria dispar Linnaeus. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 160:1-10. [PMID: 31519242 DOI: 10.1016/j.pestbp.2019.07.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 06/13/2019] [Accepted: 07/03/2019] [Indexed: 06/10/2023]
Abstract
Insect G protein coupled receptors (GPCRs) have been identified as a highly attractive target for new generation insecticides discovery due to their critical physiological functions. However, few insect GPCRs have been functionally characterized. Here, we cloned the full length of a methuselah-like GPCR gene (Ldmthl1) from the Asian gypsy moth, Lymantria dispar. We then characterized the secondary and tertiary structures of Ldmthl1. We also predicted the global structure of this insect GPCR protein which is composed of three major domains. RNA interference of Ldmthl1 resulted in a reduction of gypsy moths' resistance to deltamethrin and suppressed expression of downstream stress-associated genes, such as P450s, glutathione S transferases, and heat shock proteins. The function of Ldmthl1 was further investigated using transgenic lines of Drosophila melanogaster. Drosophila with overexpression of Ldmthl1 showed significantly longer lifespan than control flies. Taken together, our studies revealed that the physiological functions of Ldmthl1 in L. dispar are associated with longevity and resistance to insecticide stresses. Potentially, Ldmthl1 can be used as a target for new insecticide discovery in order to manage this notorious forest pest.
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Affiliation(s)
- Chuanwang Cao
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Lili Sun
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Hui Du
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Timothy W Moural
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA
| | - Hua Bai
- Department of Genetics, Development, and Cell Biology, Iowa State University, Ames, IA 50011, USA
| | - Peng Liu
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin 150040, People's Republic of China
| | - Fang Zhu
- Department of Entomology, Pennsylvania State University, University Park, PA 16802, USA.
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Xiong W, Gao S, Mao J, Wei L, Xie J, Liu J, Bi J, Song X, Li B. CYP4BN6 and CYP6BQ11 mediate insecticide susceptibility and their expression is regulated by Latrophilin in Tribolium castaneum. PEST MANAGEMENT SCIENCE 2019; 75:2744-2755. [PMID: 30788896 DOI: 10.1002/ps.5384] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 02/01/2019] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Many insect cytochrome P450 proteins (CYPs) are involved in the metabolic detoxification of exogenous compounds such as plant toxins and insecticides. Tribolium castaneum, the red flour beetle, is a major agricultural pest that damages stored grains and cereal products. With the completion of the sequencing of its genome, two T. castaneum species-specific CYP genes, CYP4BN6, and CYP6BQ11, were identified. However, it is unknown whether the functions of most CYPs are shared by TcCYP4BN6 and TcCYP6BQ11, and the upstream regulatory mechanism of these two CYPs remains elusive. RESULTS QRT-PCR analysis indicated that TcCYP4BN6 and TcCYP6BQ11 were both most highly expressed at the late pupal stage and were mainly observed in the head and gut, respectively, of adults. Moreover, the transcripts of these two CYPs were significantly induced by dichlorvos and carbofuran, and RNA interference (RNAi) targeting of each of them enhanced the susceptibility of beetles to these two insecticides. Intriguingly, knockdown of the latrophilin (lph) gene, which has been reported to be related to the insecticide susceptibility, reduced the expression of TcCYP4BN6 and TcCYP6BQ11 after insecticide treatment, suggesting that these two CYP genes are regulated by lph to participate in insecticide susceptibility in T. castaneum. CONCLUSION These results shed new light on the function and mechanism of CYP genes associated with insecticide susceptibility and could facilitate research on appropriate and sustainable pest control management. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Wenfeng Xiong
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Shanshan Gao
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
- College of Biology and Food Engineering, Anyang Institute of Technology, Anyang, China
| | - Jinjuan Mao
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Luting Wei
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Jia Xie
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Juanjuan Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Jingxiu Bi
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Xiaowen Song
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Bin Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
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Sun L, Liu P, Zhang C, Du H, Wang Z, Moural TW, Zhu F, Cao C. Ocular Albinism Type 1 Regulates Deltamethrin Tolerance in Lymantria dispar and Drosophila melanogaster. Front Physiol 2019; 10:766. [PMID: 31275171 PMCID: PMC6594220 DOI: 10.3389/fphys.2019.00766] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/31/2019] [Indexed: 02/04/2023] Open
Abstract
The ocular albinism type 1 (OA1), a pigment cell-specific integral membrane glycoprotein, is a member of the G-protein-coupled receptor (GPCR) superfamily that binds to heterotrimeric G proteins in mammalian cells. We aimed to characterize the physiological functions an insect OA1 from Lymantria dispar (LdOA1) employs in the regulation of insecticide tolerance. In the present study, we investigated the roles of LdOA1 in response to deltamethrin exposure in both L. dispar and Drosophila melanogaster. LdOA1 was expressed at the lowest level during the 4th instar stage, while LdOA1 was significantly upregulated in the 5th instar and male stages. Knockdown of LdOA1 by injecting dsRNA of LdOA1 into gypsy moth larvae caused a 4.80-fold higher mortality than in control larvae microinjected with dsRNA of GFP under deltamethrin stress. Nine out of 11 L. dispar CYP genes were significantly downregulated under deltamethrin stress in LdOA1 silenced larvae as compared to control larvae. Moreover, the LdOA1 gene was successfully overexpressed in D. melanogaster using transgenic technique. The deltamethrin contact assay showed that the LdOA1 overexpression in flies significantly enhanced the tolerance to deltamethrin compared to the control flies. Furthermore, the downstream Drosophila CYP genes were upregulated in the LdOA1 overexpression flies, suggesting LdOA1 may play a master switch role in P450-mediated metabolic detoxification. This study is the first report of an insect OA1 gene regulating insecticide tolerance and potentially playing a role in the regulation of downstream cytochrome P450 expression. These results contribute to the future development of novel insecticides targeting insect GPCRs.
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Affiliation(s)
- Lili Sun
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, China
| | - Peng Liu
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, China
| | - Chenshu Zhang
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, China
| | - Hui Du
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, China
| | - Zhiying Wang
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, China
| | - Timothy W Moural
- Department of Entomology, Pennsylvania State University, University Park, PA, United States
| | - Fang Zhu
- Department of Entomology, Pennsylvania State University, University Park, PA, United States
| | - Chuanwang Cao
- Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin, China
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Smith LB, Tyagi R, Kasai S, Scott JG. CYP-mediated permethrin resistance in Aedes aegypti and evidence for trans-regulation. PLoS Negl Trop Dis 2018; 12:e0006933. [PMID: 30452436 PMCID: PMC6277111 DOI: 10.1371/journal.pntd.0006933] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 12/03/2018] [Accepted: 10/18/2018] [Indexed: 12/05/2022] Open
Abstract
Aedes aegypti poses a serious risk to human health due to its wide global distribution, high vector competence for several arboviruses, frequent human biting, and ability to thrive in urban environments. Pyrethroid insecticides remain the primary means of controlling adult A. aegypti populations during disease outbreaks. As a result of decades of use, pyrethroid resistance is a global problem. Cytochrome P450 monooxygenase (CYP)-mediated detoxification is one of the primary mechanisms of pyrethroid resistance. However, the specific CYP(s) responsible for resistance have not been unequivocally determined. We introgressed the resistance alleles from the resistant A. aegypti strain, Singapore (SP), into the genetic background of the susceptible ROCK strain. The resulting strain (CKR) was congenic to ROCK. Our primary goal was to determine which CYPs in SP are linked to resistance. To do this, we first determined which CYPs overexpressed in SP are also overexpressed in CKR, with the assumption that only the CYPs linked to resistance will be overexpressed in CKR relative to ROCK. Next, we determined whether any of the overexpressed CYPs were genetically linked to resistance (cis-regulated) or not (trans-regulated). We found that CYP6BB2, CYP6Z8, CYP9M5 and CYP9M6 were overexpressed in SP as well as in CKR. Based on the genomic sequences and polymorphisms of five single copy CYPs (CYP4C50, 6BB2, 6F2, 6F3 and 6Z8) in each strain, none of these genes were linked to resistance, except for CYP6BB2, which was partially linked to the resistance locus. Hence, overexpression of these four CYPs is due to a trans-regulatory factor(s). Knowledge on the specific CYPs and their regulators involved in resistance is critical for resistance management strategies because it aids in the development of new control chemicals, provides information on potential environmental modulators of resistance, and allows for the detection of resistance markers before resistance becomes fixed in the population.
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Affiliation(s)
- Letícia B. Smith
- Department of Entomology, Comstock Hall, Cornell University, Ithaca, New York, United States of America
| | - Rakshit Tyagi
- Department of Entomology, Comstock Hall, Cornell University, Ithaca, New York, United States of America
| | - Shinji Kasai
- Department of Entomology, Comstock Hall, Cornell University, Ithaca, New York, United States of America
- Department of Medical Entomology, National Institute of Infectious Diseases, Toyama, Shinjukuku, Tokyo, Japan
| | - Jeffrey G. Scott
- Department of Entomology, Comstock Hall, Cornell University, Ithaca, New York, United States of America
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Zhou D, Duan B, Xu Y, Ma L, Shen B, Sun Y, Zhu C. NYD-OP7/PLC regulatory signaling pathway regulates deltamethrin resistance in Culex pipiens pallens (Diptera: Culicidae). Parasit Vectors 2018; 11:419. [PMID: 30012184 PMCID: PMC6048805 DOI: 10.1186/s13071-018-3011-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 07/11/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Investigation of insecticide resistance mechanisms is considered a vital first step towards the creation of effective strategies to control resistant mosquitoes and manage mosquito-borne diseases. Our previous study revealed that NYD-OP7 may be associated with deltamethrin resistance in Culex pipiens pallen. However, the precise function of NYD-OP7 in deltamethrin resistance is still unclear. In this study, we investigated the role of NYD-OP7 in the molecular mechanisms underlying pyrethroid resistance. RESULTS Knockdown of NYD-OP7 not only increased the susceptibility of the mosquitoes to deltamethrin in vivo but also simultaneously repressed both expression and enzyme activity of its downstream effector molecule, phospholipase C (PLC) and expression of several insecticide resistance-related P450 genes. Knockdown of PLC also sensitized the mosquitoes to deltamethrin and reduced the expression of the P450 genes. CONCLUSIONS Our results revealed that NYD-OP7 and its downstream effector PLC contribute to deltamethrin resistance by regulating the expression of P450s in Cx. pipiens pallens.
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Affiliation(s)
- Dan Zhou
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Baiyun Duan
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Yang Xu
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Lei Ma
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Bo Shen
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
| | - Yan Sun
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China.
| | - Changliang Zhu
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, China
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Identification of genes involved in pyrethroid-, propoxur-, and dichlorvos- insecticides resistance in the mosquitoes, Culex pipiens complex (Diptera: Culicidae). Acta Trop 2016; 157:84-95. [PMID: 26802491 DOI: 10.1016/j.actatropica.2016.01.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 01/13/2016] [Accepted: 01/18/2016] [Indexed: 01/25/2023]
Abstract
Culex pipiens pallens and Cx. p. quinquefasciatus are important vectors of many diseases, such as West Nile fever and lymphatic filariasis. The widespread use of insecticides to control these disease vectors and other insect pests has led to insecticide resistance becoming common in these species. In this study, high throughout Illumina sequencing was used to identify hundreds of Cx. p. pallens and Cx. p. quinquefasciatus genes that were differentially expressed in response to insecticide exposure. The identification of these genes is a vital first step for more detailed investigation of the molecular mechanisms involved in insecticide resistance in Culex mosquitoes.
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12
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Zou F, Chen C, Zhong D, Shen B, Zhang D, Guo Q, Wang W, Yu J, Lv Y, Lei Z, Ma K, Ma L, Zhu C, Yan G. Identification of QTLs Conferring Resistance to Deltamethrin in Culex pipiens pallens. PLoS One 2015; 10:e0140923. [PMID: 26484540 PMCID: PMC4617896 DOI: 10.1371/journal.pone.0140923] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 10/01/2015] [Indexed: 11/18/2022] Open
Abstract
Culex pipiens pallens is the most abundant Culex mosquito species in northern China and is an important vector of bancroftian filariasis and West Nile virus. Deltamethrin is an insecticide that is widely used for mosquito control, however resistance to this and other insecticides has become a major challenge in the control of vector-borne diseases that appear to be inherited quantitatively. Furthermore, the genetic basis of insecticide resistance remains poorly understood. In this study, quantitative trait loci (QTL) mapping of resistance to deltamethrin was conducted in F2 intercross segregation populations using bulked segregation analysis (BSA) and amplified fragment length polymorphism markers (AFLP) in Culex pipiens pallens. A genetic linkage map covering 381 cM was constructed and a total of seven QTL responsible for resistance to deltamethrin were detected by composite interval mapping (CIM), which explained 95% of the phenotypic variance. The major QTL in linkage group 2 accounted for 62% of the variance and is worthy of further study. 12 AFLP markers in the map were cloned and the genomic locations of these marker sequences were determined by applying the Basic Local Alignment Search Tool (BLAST) tool to the genome sequence of the closely related Culex quinquefasciatus. Our results suggest that resistance to deltamethrin is a quantitative trait under the control of a major QTL in Culex pipiens pallens. Cloning of related AFLP markers confirm the potential utility for anchoring the genetic map to the physical map. The results provide insight into the genetic architecture of the trait.
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Affiliation(s)
- Feifei Zou
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Chen Chen
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Daibin Zhong
- Program in Public Health, University of California Irvine, Irvine, California, United States of America
| | - Bo Shen
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Donghui Zhang
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Qin Guo
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Weijie Wang
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Jing Yu
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Yuan Lv
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Zhentao Lei
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Kai Ma
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Lei Ma
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
| | - Changliang Zhu
- Department of Pathogen Biology, Nanjing Medical University, Nanjing, Jiangsu, PR China
- * E-mail:
| | - Guiyun Yan
- Program in Public Health, University of California Irvine, Irvine, California, United States of America
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13
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Lv Y, Lei Z, Hong S, Wang W, Zhang D, Zhou D, Sun Y, Ma L, Shen B, Zhu C. Venom allergen 5 is Associated With Deltamethrin Resistance in Culex pipiens pallens (Diptera: Culicidae). JOURNAL OF MEDICAL ENTOMOLOGY 2015; 52:672-82. [PMID: 26335474 PMCID: PMC4592351 DOI: 10.1093/jme/tjv059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 04/28/2015] [Indexed: 05/20/2023]
Abstract
The mosquito, Culex pipiens pallens (L.), is an important vector of encephalitis and filariasis in northern China. The control of these mosquitoes occurs primarily via the use of pyrethroid insecticides, such as deltamethrin. The widespread and improper application of pyrethroid has resulted in the evolution of pyrethroid resistance amongst many mosquito populations, including Cx. pipiens pallens. Previous studies using high-throughput transcriptome sequencing have identified that the venom allergen 5 gene is differentially expressed between deltamethrin-susceptible and deltamethrin-resistant Cx. pipiens pallens. In this study, quantitative real-time polymerase chain reaction analyses revealed that venom allergen 5 was significantly overexpressed in adult females of both deltamethrin-resistant laboratory populations and two field populations. The transcriptional level of venom allergen 5 in the laboratory populations was elevated as the levels of deltamethrin resistance increased. Full-length cDNAs of the venom allergen 5 gene were cloned from Cx. pipiens pallens, and contained an open reading frame of 765 bp, encoding a protein with 254 amino acids. The deduced amino acid sequence shared 100% identity with the ortholog in Culex quinquefasciatus Say. The overexpression of venom allergen 5 decreased the susceptibility of mosquito cells to deltamethrin, while knockdown of this gene by RNAi increased the susceptibility of mosquitoes to deltamethrin. This study provides the first evidence of the association between the venom allergen 5 gene and deltamethrin resistance in mosquitoes.
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Affiliation(s)
- Yuan Lv
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Zhentao Lei
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Shanchao Hong
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Weijie Wang
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Donghui Zhang
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Dan Zhou
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Yan Sun
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Lei Ma
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Bo Shen
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China
| | - Changliang Zhu
- Department of Pathogen Biology, Nanjing Medical University, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China. Jiangsu Province Key Laboratory of Modern Pathogen Biology, 140 Hanzhong Rd., Nanjing, Jiangsu 210029, China.
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14
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Liu N, Li M, Gong Y, Liu F, Li T. Cytochrome P450s--Their expression, regulation, and role in insecticide resistance. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 120:77-81. [PMID: 25987224 DOI: 10.1016/j.pestbp.2015.01.006] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 01/08/2015] [Accepted: 01/10/2015] [Indexed: 05/24/2023]
Abstract
P450s are known to be critical for the detoxification and/or activation of xenobiotics such as drugs and pesticides and overexpression of P450 genes can significantly affect the disposition of xenobiotics in the tissues of organisms, altering their pharmacological/toxicological effects. In insects, P450s play an important role in detoxifying exogenous compounds such as insecticides and plant toxins and their overexpression can result in increased levels of P450 proteins and P450 activities. This has been associated with enhanced metabolic detoxification of insecticides and has been implicated in the development of insecticide resistance in insects. Multiple P450 genes have been found to be co-overexpressed in individual insect species via several constitutive overexpression and induction mechanisms, which in turn are co-responsible for high levels of insecticide resistance. Many studies have also demonstrated that the transcriptional overexpression of P450 genes in resistant insects is regulated by trans and/or cis regulatory genes/factors. Taken together, these earlier findings suggest not only that insecticide resistance is conferred via multi-resistance P450 genes, but also that it is mediated through the interaction of regulatory genes/factors and resistance genes. This chapter reviews our current understanding of how the molecular mechanisms of P450 interaction/gene regulation govern the development of insecticide resistance in insects and our progress along the road to a comprehensive characterization of P450 detoxification-mediated insecticide resistance.
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Affiliation(s)
- Nannan Liu
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA.
| | - Ming Li
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
| | - Youhui Gong
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA; Department of Entomology, China Agricultural University, Beijing, China
| | - Feng Liu
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
| | - Ting Li
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL 36849, USA
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15
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Zhu G, Zhong D, Cao J, Zhou H, Li J, Liu Y, Bai L, Xu S, Wang MH, Zhou G, Chang X, Gao Q, Yan G. Transcriptome profiling of pyrethroid resistant and susceptible mosquitoes in the malaria vector, Anopheles sinensis. BMC Genomics 2014; 15:448. [PMID: 24909924 PMCID: PMC4070547 DOI: 10.1186/1471-2164-15-448] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 05/28/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Anopheles sinensis is a major malaria vector in China and other Southeast Asian countries, and it is becoming increasingly resistant to the insecticides used for agriculture, net impregnation, and indoor residual spray. Very limited genomic information on this species is available, which has hindered the development of new tools for resistance surveillance and vector control. We used the 454 GS FLX system and generated expressed sequence tag (EST) databases of various life stages of An. sinensis, and we determined the transcriptional differences between deltamethrin resistant and susceptible mosquitoes. RESULTS The 454 GS FLX transcriptome sequencing yielded a total of 624,559 reads (average length of 290 bp) with the pooled An. sinensis mosquitoes across various development stages. The de novo assembly generated 33,411 contigs with average length of 493 bp. A total of 8,057 ESTs were generated with Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) annotation. A total of 2,131 ESTs were differentially expressed between deltamethrin resistant and susceptible mosquitoes collected from the same field site in Jiangsu, China. Among these differentially expressed ESTs, a total of 294 pathways were mapped to the KEGG database, with the predominant ESTs belonging to metabolic pathways. Furthermore, a total of 2,408 microsatellites and 15,496 single nucleotide polymorphisms (SNPs) were identified. CONCLUSIONS The annotated EST and transcriptome databases provide a valuable genomic resource for further genetic studies of this important malaria vector species. The differentially expressed ESTs associated with insecticide resistance identified in this study lay an important foundation for further functional analysis. The identified microsatellite and SNP markers will provide useful tools for future population genetic and comparative genomic analyses of malaria vectors.
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Affiliation(s)
- Guoding Zhu
- />Department of Parasitology, Medical College of Soochow University, Suzhou, 215123 PR China
- />Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, Jiangsu Province 214064 PR China
- />Program in Public Health, College of Health Sciences, University of California at Irvine, Irvine, CA 92697 USA
| | - Daibin Zhong
- />Program in Public Health, College of Health Sciences, University of California at Irvine, Irvine, CA 92697 USA
| | - Jun Cao
- />Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, Jiangsu Province 214064 PR China
| | - Huayun Zhou
- />Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, Jiangsu Province 214064 PR China
| | - Julin Li
- />Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, Jiangsu Province 214064 PR China
| | - Yaobao Liu
- />Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, Jiangsu Province 214064 PR China
| | - Liang Bai
- />Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, Jiangsu Province 214064 PR China
| | - Sui Xu
- />Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, Jiangsu Province 214064 PR China
| | - Mei-Hui Wang
- />Program in Public Health, College of Health Sciences, University of California at Irvine, Irvine, CA 92697 USA
| | - Guofa Zhou
- />Program in Public Health, College of Health Sciences, University of California at Irvine, Irvine, CA 92697 USA
| | - Xuelian Chang
- />Program in Public Health, College of Health Sciences, University of California at Irvine, Irvine, CA 92697 USA
| | - Qi Gao
- />Department of Parasitology, Medical College of Soochow University, Suzhou, 215123 PR China
- />Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Wuxi, Jiangsu Province 214064 PR China
| | - Guiyun Yan
- />Program in Public Health, College of Health Sciences, University of California at Irvine, Irvine, CA 92697 USA
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