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Chen YW, Yang HH, Gu N, Li JQ, Zhu XY, Zhang YN. Identification of attractants for adult Spodoptera litura based on the interaction between odorant-binding protein 34 and host volatiles. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 203:106005. [PMID: 39084800 DOI: 10.1016/j.pestbp.2024.106005] [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: 05/05/2024] [Revised: 06/15/2024] [Accepted: 06/28/2024] [Indexed: 08/02/2024]
Abstract
Odorant-binding proteins (OBPs) play key roles in host plant location by insects, and can accordingly serve as important targets for the development of attractants. In this study, we detected the high expression of SlitOBP34 in male antennae of Spodoptera litura. Subsequently, the fluorescence competitive binding experiments displayed that the SlitOBP34 protein has binding affinity for different ligands. Then, protein-ligand interaction analyses found the presence of six amino acid residues may serve as key recognition sites. Further electroantennographic and biobehavioral assessments revealed that the electrophysiological responses of male antennae were evoked in response to stimulation with the six identified host volatiles, and that these volatiles attracted male moths to varying extents. Notably, low concentrations of benzaldehyde, 1-hexanol, and cis-3-hexenyl acetate were found to have significant attractant effects on male moths, thereby identifying these three host volatiles as potential candidates for the development of male attractants. These findings advance our current understanding of the olfactory-encoded mechanisms of host plants selection in S. litura and have enabled us to develop novel adult attractants for controlling the pest in the future.
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Affiliation(s)
- Yu-Wen Chen
- Anhui Engineering Research Center for Green Production Technology of Drought Grain Crops, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Hui-Hui Yang
- Anhui Engineering Research Center for Green Production Technology of Drought Grain Crops, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Nan Gu
- Anhui Engineering Research Center for Green Production Technology of Drought Grain Crops, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Jian-Qiao Li
- Anhui Engineering Research Center for Green Production Technology of Drought Grain Crops, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Xiu-Yun Zhu
- Anhui Engineering Research Center for Green Production Technology of Drought Grain Crops, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China.
| | - Ya-Nan Zhang
- Anhui Engineering Research Center for Green Production Technology of Drought Grain Crops, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China.
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Tian CH, Liu XG, Xu CY, Huang JR, Fu JF, Wang GS, Zhang JY, Li GP, Yin XM, Feng HQ. Molecule characterization of chemosensory and metabolism-related genes in the proboscis of Athetis lepigone. Front Physiol 2023; 14:1287353. [PMID: 38187138 PMCID: PMC10766847 DOI: 10.3389/fphys.2023.1287353] [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: 09/01/2023] [Accepted: 11/23/2023] [Indexed: 01/09/2024] Open
Abstract
Introduction: The moth species Athetis lepigone (Möschler) (Lepidoptera: Noctuidae), which has recently been identified as a pest of summer maize (Zea mays L.) in China, has demonstrated a rapid proliferation with in the Huang-Huai-Hai Plain region since its initial discovery in Hebei Province in 2005. It has become a prevalent pest of corn crops, and its ability to adapt quickly to its surroundings is currently being investigated. One of the key characteristics of its siphoning mouthparts is not only the feeding apparatus itself but also the chemosensory organs that enable the detection of chemical signals from the surrounding environment. However, there is a lack of comprehensive research on the genes responsible for chemosensory and metabolic mechanisms in the proboscises of male and female A. lepigone adults. Methods: In this study, we utilized transcriptome analysis to identify a total of fifty chemosensory genes from six distinct families, including 19 odorant-binding proteins (OBPs), 22 chemosensory proteins (CSPs), one co-receptor (Orco), six odorant receptors (ORs), four ionotropic receptors (IRs), and two sensory neuron membrane proteins (SNMPs) in the proboscis. Notably, seven OBPs, two CSPs, and one OR were discovered for the first time. Additionally, fourteen genes related to metabolism, including cytochrome P450 (CYPs) and carboxylesterases (CXEs), were also identified. Furthermore, a qualitative analysis was conducted on the relative transcript levels of eight related genes. The expression of 21 annotated chemosensory and metabolic genes was compared between A. lepigone adults and larvae using qRT-PCR, revealing tissue specificity. The majority of genes exhibited predominant expression in the antennae and proboscis during the adult stage, while showing slight expression in the combination of sixth-instar larval head oral appendages (maxilla, labium, and antenna) and pheromone gland-ovipositors of female adults. Results/discussion: Our study points to a new pest control strategies that these newly discovered genes have the potential to serve as targets for enhancing future pest control, including mating disruption and the use of food attractants. And it would be advantageous to ascertain the distribution of chemosensory gene expression and gain insights into the functionalities of these genes, thereby establishing a novel theoretical framework for the advancement of eco-friendly pesticides and efficient pest management strategies in the future.
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Affiliation(s)
- Cai-Hong Tian
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Xiao-Guang Liu
- Henan International Laboratory for Green Pest Control, Henan Engineering Laboratory of Pest Biological Control, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Cun-Yi Xu
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Jian-Rong Huang
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Jun-Feng Fu
- Yuzhou Plant Protection and Quarantine Station, Yuzhou, China
| | - Gen-Song Wang
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Jun-Yi Zhang
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
- Henan International Laboratory for Green Pest Control, Henan Engineering Laboratory of Pest Biological Control, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Guo-Ping Li
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Xin-Ming Yin
- Henan International Laboratory for Green Pest Control, Henan Engineering Laboratory of Pest Biological Control, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Hong-Qiang Feng
- Henan Key Laboratory of Crop Pest Control, MOA Key Regional Crop Integrated Pest Management (IPM) Laboratory in Southern Part of Northern China, International Joint Research Laboratory for Crop Protection of Henan, Entomological Radar Station Zero of Henan Province for Field Scientific Observation and Research, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
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Li JQ, Zhu R, Yao WC, Yu HP, Huang JR, Wang Z, Sun XY, Yuan DH, Sun YY, Emam SS, Dewer Y, Zhu XY, Zhang YN. Chemosensory Protein 2 of Male Athetis lepigone Is Involved in the Perception of Sex Pheromones and Maize Volatiles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:6277-6287. [PMID: 37068196 DOI: 10.1021/acs.jafc.3c00565] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In moths, the interactions between chemosensory proteins (CSPs) and sex pheromones have yet to be comprehensively investigated. Here, we examined the function of AlepCSP2 in male Athetis lepigone based on protein expression, molecular docking, site-directed mutagenesis, fluorescence competitive binding analyses, and RNA interference (RNAi) experiments. We found that AlepCSP2 showed strong binding affinity for two sex pheromones and five maize volatiles and that binding was optimal under neutral conditions. Furthermore, we identified six amino acids as being key residues involved in the interaction between AlepCSP2 and multiple ligands. Further RNAi showed that siCSP2 males displayed consistently lower electroantennography responses to two sex pheromones and three maize volatiles at different dosages tested, and the mating rate also decreased significantly by 37.50%. These findings will contribute to characterizing the binding mechanisms of moth CSPs to sex pheromones and host volatiles and also identify unique targets for developing novel pest behavior disruptors.
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Affiliation(s)
- Jian-Qiao Li
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Rui Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Wei-Chen Yao
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Hui-Ping Yu
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Jian-Rong Huang
- Henan Key Laboratory of Crop Pest Control, MOA's Regional Key Lab of Crop IPM in Southern Part of Northern China, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Zhen Wang
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Xin-Yue Sun
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Di-Hua Yuan
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Yuan-Yuan Sun
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Sekina S Emam
- Phytotoxicity Research Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, 7 Nadi El-Seid Street, Dokki, Giza 12618, Egypt
| | - Youssef Dewer
- Phytotoxicity Research Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, 7 Nadi El-Seid Street, Dokki, Giza 12618, Egypt
| | - Xiu-Yun Zhu
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Ya-Nan Zhang
- College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
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4
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Guo YR, Yin NN, Wu C, Yang ZX, Wang ZQ, Liu NY. Expression profile and functional characterization of odorant binding proteins in a forest pest, Dioryctria abietella (Lepidoptera: Pyralidae). Comp Biochem Physiol B Biochem Mol Biol 2023; 266:110835. [PMID: 36801252 DOI: 10.1016/j.cbpb.2023.110835] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023]
Abstract
In the forest ecosystem dominated by the Pinaceae plants, this boring pest Dioryctria abietella is subject to a variety of odorants derived from host and nonhost plants, in which olfactory-related proteins enriched in antennae are key behavioral modulators for the orientation of feeding and ovipositing hosts. Here, we addressed the odorant binding protein (OBP) gene family in D. abietella. Expression profiles revealed that the majority of OBPs were abundantly expressed in the antennae at a female-biased level. A male-antenna-biased DabiPBP1 was a strong candidate for detecting type I and type II pheromones of D. abitella female moths. Using a prokaryotic expression system combined with affinity chromatography, we harvested two antenna-dominant DabiOBPs. In the ligand-binding assays, the two DabiOBPs exhibited different odorant response spectra, as DabiOBP17 was tuned to most odorants with higher affinities compared to DabiOBP4. Of these, DabiOBP4 could strongly bind syringaldehyde and citral (dissociation constants (Ki) < 14 μM). A floral volatile, benzyl benzoate (Ki = 4.72 ± 0.20 μM), was the best ligand for DabiOBP17. Remarkably, several green leaf volatiles were found to strongly interact with DabiOBP17 (Ki < 8.5 μM), including Z3-hexenyl acetate, E2-hexenol, Z2-hexenal and E2-hexenal that may mediate a repellent response to D. abietella. Structural analyses of ligands revealed that the binding of the two DabiOBPs to odorants was associated with carbon-chain lengths and functional groups. Molecular simulations identified several key residues involved in the interactions of DabiOBPs and ligands, suggesting specific binding mechanisms. This study highlights olfactory roles of two antennal DabiOBPs in D. abietella, helping the identification of potentially behavioral compounds for the population control of this pest.
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Affiliation(s)
- Yu-Ruo Guo
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Ning-Na Yin
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Chun Wu
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Zi-Xuan Yang
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Zheng-Quan Wang
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Nai-Yong Liu
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China.
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5
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Wang GY, Chang YB, Guo JH, Xi JQ, Liang TB, Zhang SX, Yang MM, Hu LW, Mu WJ, Song JZ. Identification and Expression Profiles of Putative Soluble Chemoreception Proteins from Lasioderma serricorne (Coleoptera: Anobiidae) Antennal Transcriptome. ENVIRONMENTAL ENTOMOLOGY 2022; 51:700-709. [PMID: 35666204 DOI: 10.1093/ee/nvac037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Indexed: 06/15/2023]
Abstract
The cigarette beetle, Lasioderma serricorne (Fabricius) (Coleoptera: Anobiidae), is a destructive stored product pest worldwide. Adult cigarette beetles are known to rely on host volatiles and pheromones to locate suitable habitats for oviposition and mating, respectively. However, little is known about the chemosensory mechanisms of these pests. Soluble chemoreception proteins are believed to initiate olfactory signal transduction in insects, which play important roles in host searching and mating behaviors. In this study, we sequenced the antennal transcriptome of L. serricorne and identified 14 odorant-binding proteins (OBPs), 5 chemosensory proteins (CSPs), and 2 Niemann-Pick C2 proteins (NPC2). Quantitative realtime PCR (qPCR) results revealed that several genes (LserOBP2, 3, 6, and 14) were predominantly expressed in females, which might be involved in specific functions in this gender. The five LserOBPs (LserOBP1, 4, 8, 10, and 12) that were highly expressed in the male antennae might encode proteins involved in specific functions in males. These findings will contribute to a better understanding of the olfactory system in this stored product pest and will assist in the development of efficient and environmentally friendly strategies for controlling L. serricorne.
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Affiliation(s)
- Gui-Yao Wang
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Yan-Bin Chang
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Jian-Hua Guo
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Jia-Qin Xi
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Tai-Bo Liang
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Shi-Xiang Zhang
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Meng-Meng Yang
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Li-Wei Hu
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Wen-Jun Mu
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Ji-Zhen Song
- Key Laboratory of Eco-environment and Leaf Tobacco Quality, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
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6
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Yang HH, Xu JW, Zhang XQ, Huang JR, Li LL, Yao WC, Zhao PP, Zhang D, Liu JY, Dewer Y, Zhu XY, Li XM, Zhang YN. AlepPBP2, but not AlepPBP3, may involve in the recognition of sex pheromones and maize volatiles in Athetis lepigone. BULLETIN OF ENTOMOLOGICAL RESEARCH 2022; 112:536-545. [PMID: 35199636 DOI: 10.1017/s0007485321001127] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Athetis lepigone Möschler (Lepidoptera, Noctuidae) is a common maize pest in Europe and Asia. However, there is no long-term effective management strategy is available yet to suppress its population. Adults rely heavily on olfactory cues to locate their optimal host plants and oviposition sites. Pheromone-binding proteins (PBPs) are believed to be responsible for recognizing and transporting different odorant molecules to interact with receptor membrane proteins. In this study, the ligand-binding specificities of two AlepPBPs (AlepPBP2 and AlepPBP3) for sex pheromone components and host plant (maize) volatiles were measured by fluorescence ligand-binding assay. The results demonstrated that AlepPBP2 had a high affinity with two pheromones [(Z)-7-dodecenyl acetate, Ki = 1.11 ± 0.1 μM, (Z)-9-tetradecenyl acetate, Ki = 1.32 ± 0.15 μM] and ten plant volatiles, including (-)-limonene, α-pinene, myrcene, linalool, benzaldehyde, nonanal, 2-hexanone, 3-hexanone, 2-heptanone and 6-methyl-5-hepten-2-one. In contrast, we found that none of these chemicals could bind to AlepPBP3. Our results clearly show no significant differences in the functional characterization of the binding properties between AlepPBP2 and AlepPBP3 to sex pheromones and host plant volatiles. Furthermore, molecular docking was employed for further detail on some crucial amino acid residues involved in the ligand-binding of AlepPBP2. These findings will provide valuable information about the potential protein binding sites necessary for protein-ligand interactions which appear as attractive targets for the development of novel technologies and management strategies for insect pests.
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Affiliation(s)
- Hui-Hui Yang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Ji-Wei Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xiao-Qing Zhang
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Jian-Rong Huang
- Henan Key Laboratory of Crop Pest Control, MOA's Regional Key Lab of Crop IPM in Southern Part of Northern China, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Lu-Lu Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Wei-Chen Yao
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Pan-Pan Zhao
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Dong Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Jia-Yi Liu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
- College of Information, Huaibei Normal University, Huaibei, China
| | - Youssef Dewer
- Phytotoxicity Research Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, 7 Nadi El-Seid Street, Dokki 12618, Giza, Egypt
| | - Xiu-Yun Zhu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xiao-Ming Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Ya-Nan Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
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Li JB, Yin MZ, Yao WC, Ma S, Dewer Y, Liu XZ, Wang YY, Wang CW, Li BP, Zhu XY. Genome-Wide Analysis of Odorant-Binding Proteins and Chemosensory Proteins in the Bean bug Riptortus pedestris. Front Physiol 2022; 13:949607. [PMID: 35910558 PMCID: PMC9329939 DOI: 10.3389/fphys.2022.949607] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/20/2022] [Indexed: 11/30/2022] Open
Abstract
Insects have sensitive olfactory systems to interact with environment and respond to the change in host plant conditions. Key genes in the system can be potential targets for developing new and efficient pest behaviour control methods. Riptortus pedestris is an important soybean pest in East Asia and has caused serious damage to the soybean plants in Huang-Huai-Hai region of China. However, the current treatment of pests is dominated by chemical insecticides and lacks efficient sustainable prevention and control technologies. In this study, we identified 49 putative odorant-binding proteins (OBPs) (43 were new genes) and 25 chemosensory proteins (CSPs) (17 were new genes) in R. pedestris genome. These OBP and CSP genes are clustered in highly conserved groups from other hemipteran species in phylogenetic trees. Most RpedOBPs displayed antennal-biased expression. Among the 49 RpedOBPs, 33 were significantly highly expressed in the antennae, including three male-biased and nine female-biased. While many RpedCSPs were detected both in the antennae and in non-antennal tissues, only 11 RpedCSPs displayed antennal-biased expression, in which four RpedCSPs were male-biased and five RpedCSPs were female-biased. Some OBP and CSP genes showed sex-biased expression profiles. Our results not only provide a foundation for future exploration of the functions of RpedOBPs and RpedCSPs but also aid in developing environmentally friendly insecticides in the future.
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Affiliation(s)
- Jin-Bu Li
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- Institute of Plant Protection, Suzhou Academy of Agricultural Sciences, Suzhou, China
| | - Mao-Zhu Yin
- Institute of Plant Protection, Suzhou Academy of Agricultural Sciences, Suzhou, China
| | - Wei-Chen Yao
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Sai Ma
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Youssef Dewer
- Phytotoxicity Research Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, Giza, Egypt
| | - Xing-Zhou Liu
- Institute of Plant Protection, Suzhou Academy of Agricultural Sciences, Suzhou, China
| | - Yue-Ying Wang
- Institute of Plant Protection, Suzhou Academy of Agricultural Sciences, Suzhou, China
| | - Chao-Wei Wang
- Institute of Plant Protection, Suzhou Academy of Agricultural Sciences, Suzhou, China
| | - Bao-Ping Li
- Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
- *Correspondence: Bao-Ping Li, ; Xiu-Yun Zhu,
| | - Xiu-Yun Zhu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Provincial Engineering Laboratory for Efficient Utilization of Featured Resource Plants, College of Life Sciences, Huaibei Normal University, Huaibei, China
- *Correspondence: Bao-Ping Li, ; Xiu-Yun Zhu,
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8
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Hu J, Wang XY, Tan LS, Lu W, Zheng XL. Identification of Chemosensory Genes, Including Candidate Pheromone Receptors, in Phauda flammans (Walker) (Lepidoptera: Phaudidae) Through Transcriptomic Analyses. Front Physiol 2022; 13:907694. [PMID: 35846004 PMCID: PMC9283972 DOI: 10.3389/fphys.2022.907694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
Olfactory and gustatory systems play an irreplaceable role in all cycles of growth of insects, such as host location, mating, and oviposition. Many chemosensory genes in many nocturnal moths have been identified via omics technology, but knowledge of these genes in diurnal moths is lacking. In our recent studies, we reported two sex pheromone compounds and three host plant volatiles that play a vital role in attracting the diurnal moth, Phauda flammans. The antennal full-length transcriptome sequence of P. flammans was obtained using the Pacbio sequencing to further explore the process of sex pheromone and host plant volatile recognition in P. flammans. Transcriptome analysis identified 166 candidate olfactory and gustatory genes, including 58 odorant-binding proteins (OBPs), 19 chemosensory proteins (CSPs), 59 olfactory receptors (ORs), 16 ionotropic receptors (IRs), 14 gustatory receptors (GRs), and 2 sensory neuron membrane proteins (SNMPs). Subsequently, a phylogenetic tree was established using P. flammans and other lepidopteran species to investigate orthologs. Among the 17 candidate pheromone receptor (PR) genes, the expression levels of PflaOR21, PflaOR25, PflaOR35, PflaOR40, PflaOR41, PflaOR42, PflaOR44, PflaOR49, PflaOR51, PflaOR61, and PflaOR63 in the antennae were significantly higher than those in other non-antennae tissues. Among these PR genes, PflaOR21, PflaOR27, PflaOR29, PflaOR35, PflaOR37, PflaOR40, PflaOR42, PflaOR44, PflaOR60, and PflaOR62 showed male-biased expression, whereas PflaOR49, PflaOR61, and PflaOR63 revealed female-biased expression. The functions of related OR genes were also discussed. This research filled the gap of the chemosensory genes of P. flammans and provided basic data for future functional molecular mechanisms studies on P. flammans olfaction.
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Li X, Li JW, Sun WX, Li W, Gao HY, Liu TX, Qu MJ. Candidate Chemosensory Genes Identified in the Adult Antennae of Sympiezomias velatus and Binding Property of Odorant-Binding Protein 15. Front Physiol 2022; 13:907667. [PMID: 35711318 PMCID: PMC9193972 DOI: 10.3389/fphys.2022.907667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/28/2022] [Indexed: 11/13/2022] Open
Abstract
Chemosensory genes play important roles in insect behaviors and have thus become potential molecular targets for pest control based on the manipulation of chemoreception-driven behaviors. The great gray weevil Sympiezomias velatus (Chevrolat) (Coleoptera: Curculionidae) is an important agricultural pest that causes serious economic losses to many crops in China, but its chemosensory genes have not been reported. Here we assembled the antennal transcriptomes of female and male adult S. velatus and revealed the major chemosensory genes necessary for olfaction. A total of 138 candidate chemosensory genes in six families were identified, including 41 encoding odorant-binding proteins (OBPs), 11 encoding chemosensory proteins (CSPs), 62 encoding odorant receptors (ORs), 15 encoding gustatory receptors (GRs), six encoding ionotropic receptors (IRs), and three encoding sensory neuron membrane proteins (SNMPs). We analyzed their phylogenetic relationship based on the amino acid sequences of these chemosensory-related protein families in S. velatus and other insects, and the expression profiles based on their antennal transcriptomes. Chemosensory genes that show antenna-abundant/specific or sex-biased expression were observed, suggesting that these genes might have functions in olfaction. Furthermore, we chose an antenna-abundant OBP belonging to ABPX subfamily, SvelOBP15, to investigate its binding property. The results showed that among 33 tested compounds, SvelOBP15 displayed high binding affinities (Ki = 7.36-12.94 μmol/L) with farnesol, nerolidol, limonene and diisobutyl phthalate, indicating that SvelOBP15 plays olfactory roles by binding and transporting specific plant volatiles. These findings will help us better understand the olfactory systems of S. velatus, and provide a basis for functional elucidation of these chemosensory genes.
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Affiliation(s)
- Xiao Li
- Shandong Peanut Research Institute, Qingdao, China
| | - Jian-Wen Li
- College of Life Sciences, Yangtze University, Jingzhou, China.,Weinan Product Quality Supervision and Inspection Institute, Weinan, China
| | - Wen-Xiu Sun
- College of Life Sciences, Yangtze University, Jingzhou, China
| | - Wei Li
- College of Life Sciences, Yangtze University, Jingzhou, China
| | - Hua-Yuan Gao
- Peanut Research Institute, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Tong-Xian Liu
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Ming-Jing Qu
- Shandong Peanut Research Institute, Qingdao, China
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Qu C, Yang ZK, Wang S, Zhao HP, Li FQ, Yang XL, Luo C. Binding Affinity Characterization of Four Antennae-Enriched Odorant-Binding Proteins From Harmonia axyridis (Coleoptera: Coccinellidae). Front Physiol 2022; 13:829766. [PMID: 35350682 PMCID: PMC8957989 DOI: 10.3389/fphys.2022.829766] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/24/2022] [Indexed: 11/30/2022] Open
Abstract
Harmonia axyridis is an important natural enemy that consumes many agricultural and forestry pests. It relies on a sensitive olfactory system to find prey and mates. Odorant-binding proteins (OBPs) as the first-step of recognizing volatiles, transport odors through sensillum lymph to odorant receptors (ORs). However, little is known about the molecular mechanisms of H. axyridis olfaction. In this study, four H. axyridis antenna specific OBP genes, HaxyOBP3, 5, 12, and 15, were bacterially expressed and the binding features of the four recombinant proteins to 40 substances were investigated using fluorescence competitive binding assays. Three-dimensional structure modeling and molecular docking analysis predicted the binding sites between HaxyOBPs and candidate volatiles. Developmental expression analyses showed that the four HaxyOBP genes displayed a variety of expression patterns at different development stages. The expression levels of HaxyOBP3 and HaxyOBP15 were higher in the adult stage than in the other developmental stages, and HaxyOBP15 was significantly transcriptionally enriched in adult stage. Ligand-binding analysis demonstrated that HaxyOBP3 and HaxyOBP12 only combined with two compounds, β-ionone and p-anisaldehyde. HaxyOBP5 protein displayed binding affinities with methyl salicylate, β-ionone, and p-anisaldehyde (Ki = 18.15, 11.71, and 13.45 μM). HaxyOBP15 protein had a broad binding profile with (E)-β-farnesene, β-ionone, α-ionone, geranyl acetate, nonyl aldehyde, dihydro-β-ionone, and linalyl acetate (Ki = 4.33-31.01 μM), and hydrophobic interactions played a key role in the binding of HaxyOBP15 to these substances according to molecular docking. Taken together, HaxyOBP15 exhibited a broader ligand-binding spectrum and a higher expression in adult stage than HaxyOBP3, 5, and 12, indicating HaxyOBP15 may play a greater role in binding volatiles than other three HaxyOBPs. The results will increase our understanding of the molecular mechanism of H. axyridis olfaction and may also result in new management strategies (attractants/repellents) that increase the biological control efficacy of H. axyridis.
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Affiliation(s)
- Cheng Qu
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Zhao-kai Yang
- Department of Applied Chemistry, Innovation Center of Pesticide Research, China Agricultural University, Beijing, China
| | - Su Wang
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hai-peng Zhao
- College of Plant Protection, Shandong Agricultural University, Taian, China
| | - Feng-qi Li
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Xin-ling Yang
- Department of Applied Chemistry, Innovation Center of Pesticide Research, China Agricultural University, Beijing, China
| | - Chen Luo
- Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
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Wang Q, Li Y, Wang Q, Sun L, Zhang Y. The Adelphocoris lineolatus OBP4: Support for evolutionary and functional divergence of a mirid pheromone-binding protein from that found in lepidopteran moths. INSECT SCIENCE 2022; 29:151-161. [PMID: 33890408 DOI: 10.1111/1744-7917.12919] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Pheromone-binding proteins (PBPs) have been extensively investigated in lepidopteran moths, but their evolution and function in hemipteran species remain unclear. Our previous study demonstrated that an odorant-binding protein, OBP4, of the mirid bug Adelphocoris lineolatus functions as a candidate hemipteran PBP but clustered with lepidopteran antennae-binding proteins (ABPs) rather than in the PBP/general odorant-binding protein (GOBP) clade. In this study, we hypothesized that origin and function of PBPs in hemipteran bugs may differ from those of lepidopteran moths. To test this hypothesis, we first constructed a phylogenetic tree using insect OBPs from sister hemipteran and holometabolous lineages, and the results indicated that neither OBP4 nor other types of candidate PBPs of mirid bugs clustered with the lepidopteran PBP/GOBP clade. Then, a fluorescence competitive binding assay was employed to determine binding affinities of recombinant OBP4 protein to host plant volatiles, with functional groups different from A. lineolatus sex pheromone components. The results revealed that OBP4 highly bound the female adult attractant 3-hexanone and 15 other mirid bug biologically active plant volatiles. Finally, we examined cellular expression profiles of OBP4 in putative antennal sensilla that are related to female A. lineolatus host plant location. The fluorescence in situ hybridization and immunocytochemical labeling assay showed that the OBP4 gene was highly expressed in the multiporous olfactory sensilla medium-long sensilla basiconica rather than in the short sensilla basiconica or uniporous sensilla chaetica. These results, together with those of our previous studies, indicate that OBP4 not only functions in recognition of bug-produced sex pheromones in males, but is probably involved in detection of host plant volatiles in both A. lineolatus sexes. Our findings support the hypothesis that the origin and function of PBPs in hemipteran bugs differ from those of well-known PBPs in lepidopteran moths, which provides a novel perspective on evolutionary mechanisms of sex pheromone communication across insect orders.
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Affiliation(s)
- Qian Wang
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
- College of Agriculture and Food Science, Zhejiang A & F University, Hangzhou, 311300, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yujie Li
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
| | - Qi Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Liang Sun
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, 310008, China
| | - Yongjun Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
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Li LL, Huang JR, Xu JW, Yao WC, Yang HH, Shao L, Zhang HR, Dewer Y, Zhu XY, Zhang YN. Ligand-binding properties of odorant-binding protein 6 in Athetis lepigone to sex pheromones and maize volatiles. PEST MANAGEMENT SCIENCE 2022; 78:52-62. [PMID: 34418275 DOI: 10.1002/ps.6606] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/21/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Athetis lepigone, a noctuid moth feeding on more than 30 different crops worldwide, has evolved a sophisticated, sensitive, and specific chemosensory system to detect and discriminate exogenous chemicals. Odorant-binding proteins (OBPs) are the most important agent in insect chemosensory systems to be explored as an alternative target for environmentally friendly approaches to pest management. RESULTS To investigate the olfactory function of A. lepigone OBPs (AlepOBPs), AlepOBP6 was identified and expressed in Escherichia coli. The binding affinity of the recombinant OBP to 20 different ligands was then examined using a competitive binding approach. The results revealed that AlepOBP6 can bind to two sex pheromones and ten maize volatiles, and its conformation stability is pH dependent. We also carried out a structure-function study using different molecular approaches, including structure modeling, molecular docking, and a mutation functional assay to identify amino acid residues (M39, V68, W106, Q107, and Y114) involved in the binding of AlepOBP6 to both sex pheromones and maize volatiles in A. lepigone. CONCLUSION These results suggest that AlepOBP6 is likely involved in mediating the responses of A. lepigone to sex pheromones and maize volatiles, which may play a pivotal function in mating, feeding, and oviposition behaviors. This study not only provides new insight into the binding mechanism of OBPs to sex pheromones and host volatiles in moths, but also contributes to the discovery of novel target candidates for developing efficient behavior disruptors to control A. lepigone in the future. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Lu-Lu Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Jian-Rong Huang
- Henan Key Laboratory of Crop Pest Control, MOA's Regional Key Lab of Crop IPM in Southern Part of Northern China, Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Ji-Wei Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Wei-Chen Yao
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Hui-Hui Yang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Liang Shao
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Hui-Ru Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Youssef Dewer
- Phytotoxicity Research Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, 7 Nadi El-Seid Street, Dokki 12618, Giza, Egypt
| | - Xiu-Yun Zhu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
| | - Ya-Nan Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, China
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Wang ZQ, Wu C, Li GC, Nuo SM, Yin NN, Liu NY. Transcriptome Analysis and Characterization of Chemosensory Genes in the Forest Pest, Dioryctria abietella (Lepidoptera: Pyralidae). Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.748199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
In Lepidoptera, RNA sequencing has become a useful tool in identifying chemosensory genes from antennal transcriptomes, but little attention is paid to non-antennal tissues. Though the antennae are primarily responsible for olfaction, studies have found that a certain number of chemosensory genes are exclusively or highly expressed in the non-antennal tissues, such as proboscises, legs and abdomens. In this study, we report a global transcriptome of 16 tissues from Dioryctria abietella, including chemosensory and non-chemosensory tissues. Through Illumina sequencing, totally 952,658,466 clean reads were generated, summing to 142.90 gigabases of data. Based on the transcriptome, 235 chemosensory-related genes were identified, comprising 42 odorant binding proteins (OBPs), 23 chemosensory proteins (CSPs), 75 odorant receptors (ORs), 62 gustatory receptors (GRs), 30 ionotropic receptors (IRs), and 3 sensory neuron membrane proteins (SNMPs). Compared to a previous study in this species, 140 novel genes were found. A transcriptome-wide analysis combined with PCR results revealed that except for GRs, the majority of other five chemosensory gene families in Lepidoptera were expressed in the antennae, including 160 chemosensory genes in D. abietella. Using phylogenetic and expression profiling analyses, members of the six chemosensory gene repertoires were characterized, in which 11 DabiORs were candidates for detecting female sex pheromones in D. abietella, and DabiOR23 may be involved in the sensing of plant-derived phenylacetaldehyde. Intriguingly, more than half of the genes were detected in the proboscises, and one fourth of the genes were found to have the expression in the legs. Our study not only greatly extends and improves the description of chemosensory genes in D. abietella, but also identifies potential molecular targets involved in olfaction, gustation and non-chemosensory functions for control of this pest.
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Dong Y, Li T, Liu J, Sun M, Chen X, Liu Y, Xu P. Sex- and stage-dependent expression patterns of odorant-binding and chemosensory protein genes in Spodoptera exempta. PeerJ 2021; 9:e12132. [PMID: 34603852 PMCID: PMC8445084 DOI: 10.7717/peerj.12132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 08/18/2021] [Indexed: 11/20/2022] Open
Abstract
As potential molecular targets for developing novel pest management strategies, odorant-binding proteins (OBPs) and chemosensory proteins (CSPs) have been considered to initiate odor recognition in insects. Herein, we investigated the OBPs and CSPs in a major global crop pest (Spodoptera exempta). Using transcriptome analysis, we identified 40 OBPs and 33 CSPs in S. exempta, among which 35 OBPs and 29 CSPs had intact open reading frames. Sequence alignment indicated that 30 OBPs and 23 CSPs completely contained the conserved cysteines. OBPs of lepidopteran insects usually belonged to classical, minus-C, and plus-C groups. However, phylogenetic analyses indicated that we only identified 28 classical and seven minus-C OBPs in S. exempta, suggesting that we might have missed some typical OBPs in lepidopteran insects, probably due to their low expression levels. All of the CSPs from S. exempta clustered with the orthologs of other moths. The identification and expression of the OBPs and CSPs were well studied in insect adults by transcriptional analyses, and herein we used samples at different stages to determine the expression of OBPs and CSPs in S. exempta. Interestingly, our data indicated that several OBPs and CSPs were especially or more highly expressed in larvae or pupae than other stages, including three exclusively (SexeOBP13, SexeOBP16 and SexeCSP23) and six more highly (SexeOBP15, SexeOBP37, SexeCSP4, SexeCSP8, SexeCSP19, and SexeCSP33) expressed in larvae, two exclusively (SexeCSP6 and SexeCSP20) and three more highly (SexeOBP18, SexeCSP17, and SexeCSP26) expressed in pupae. Usually, OBPs and CSPs had both male- and female-biased expression patterns in adult antennae. However, our whole-body data indicated that all highly expressed OBPs and CSPs in adults were male-biased or did not differ, suggesting diverse OBP and CSP functions in insect adults. Besides identifying OBPs and CSPs as well as their expression patterns, these results provide a molecular basis to facilitate functional studies of OBPs and CSPs for exploring novel management strategies to control S. exempta.
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Affiliation(s)
- Yonghao Dong
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province, China.,Qingdao Special Crops Research Center, Chinese Academy of Agricultural Sciences, Qingdao, Shandong Province, China
| | - Tong Li
- Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou, Henan Province, China
| | - Jin Liu
- Shandong Agriculture and Engineering University, Jinan, Shandong Province, China
| | - Meixue Sun
- Qingdao Special Crops Research Center, Chinese Academy of Agricultural Sciences, Qingdao, Shandong Province, China
| | - Xingyu Chen
- Qingdao Special Crops Research Center, Chinese Academy of Agricultural Sciences, Qingdao, Shandong Province, China
| | - Yongjie Liu
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province, China
| | - Pengjun Xu
- Qingdao Special Crops Research Center, Chinese Academy of Agricultural Sciences, Qingdao, Shandong Province, China
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Li LL, Xu JW, Yao WC, Yang HH, Dewer Y, Zhang F, Zhu XY, Zhang YN. Chemosensory genes in the head of Spodoptera litura larvae. BULLETIN OF ENTOMOLOGICAL RESEARCH 2021; 111:454-463. [PMID: 33632348 DOI: 10.1017/s0007485321000109] [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] [Indexed: 06/12/2023]
Abstract
The tobacco cutworm Spodoptera litura (Lepidoptera: Noctuidae) is a polyphagous pest with a highly selective and sensitive chemosensory system involved in complex physiological behaviors such as searching for food sources, feeding, courtship, and oviposition. However, effective management strategies for controlling the insect pest populations under threshold levels are lacking. Therefore, there is an urgent need to formulate eco-friendly pest control strategies based on the disruption of the insect chemosensory system. In this study, we identified 158 putative chemosensory genes based on transcriptomic and genomic data for S. litura, including 45 odorant-binding proteins (OBPs, nine were new), 23 chemosensory proteins (CSPs), 60 odorant receptors (ORs, three were new), and 30 gustatory receptors (GRs, three were new), a number higher than those reported by previous transcriptome studies. Subsequently, we constructed phylogenetic trees based on these genes in moths and analyzed the dynamic expression of various genes in head capsules across larval instars using quantitative real-time polymerase chain reaction. Nine genes-SlitOBP8, SlitOBP9, SlitOBP25, SlitCSP1, SlitCSP7, SlitCSP18, SlitOR34, SlitGR240, and SlitGR242-were highly expressed in the heads of 3- to 5-day-old S. litura larvae. The genes differentially expressed in olfactory organs during larval development might play crucial roles in the chemosensory system of S. litura larvae. Our findings substantially expand the gene inventory for S. litura and present potential target genes for further studies on larval feeding in S. litura.
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Affiliation(s)
- Lu-Lu Li
- College of Life Sciences, Huaibei Normal University, 100 Dongshan Road, Huaibei235000, China
| | - Ji-Wei Xu
- College of Life Sciences, Huaibei Normal University, 100 Dongshan Road, Huaibei235000, China
| | - Wei-Chen Yao
- College of Life Sciences, Huaibei Normal University, 100 Dongshan Road, Huaibei235000, China
| | - Hui-Hui Yang
- College of Life Sciences, Huaibei Normal University, 100 Dongshan Road, Huaibei235000, China
| | - Youssef Dewer
- Bioassay Research Department, Central Agricultural Pesticide Laboratory, Agricultural Research Center, 7 Nadi El-Seid Street, Dokki 12618Giza, Egypt
| | - Fan Zhang
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, 88 East Wenhua Road, Jinan250014, China
| | - Xiu-Yun Zhu
- College of Life Sciences, Huaibei Normal University, 100 Dongshan Road, Huaibei235000, China
| | - Ya-Nan Zhang
- College of Life Sciences, Huaibei Normal University, 100 Dongshan Road, Huaibei235000, China
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Li J, Gao P, Zhang L. Identification and expression characteristics of putative chemosensory proteins in the peach fruit borer Carposina sasakii Matsumura (Lepidoptera: Carposinidae). COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2021; 39:100858. [PMID: 34082360 DOI: 10.1016/j.cbd.2021.100858] [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: 02/18/2021] [Revised: 04/12/2021] [Accepted: 05/19/2021] [Indexed: 11/18/2022]
Abstract
Chemosensory proteins (CSPs) are important for insect chemoreception, which bind, solubilize and transport hydrophobic chemical molecules from external environment to dendrite membrane of chemosensory neurons. Moreover, CSPs are also involved in non-sensory physiological activities. The peach fruit borers Carposina sasakii Matsumura (Lepidoptera: Carposinidae) seriously damage fruit trees and their chemoreception mainly occurs in the adult stage. We identified 10 putative CSPs (CsasCSP1 ~ CsasCSP10) from head transcriptomes of C. sasakii adult males and females, all of which are classic CSPs that have 4 conserved cysteines with a spacing pattern C1-X6-C2-X17-18-C3-X2-C4. Their phylogenetic characteristics were also described. An analysis using fluorescence quantitative PCR showed CsasCSP2 has the highest level of expression in the heads, so it is more likely to be involved in C. sasakii chemoreception than the other C. sasakii CSPs. CsasCSP1, CsasCSP3, CsasCSP4, CsasCSP6, CsasCSP7 and CsasCSP8 are expressed dominantly in the wings; CsasCSP5 and CsasCSP10 have the highest expression level in the thoraxes; CsasCSP9 is dominantly and equally expressed in the thoraxes and abdomens. This study contributes to understanding physiological functions of C. sasakii CSPs and chemosensory mechanism at C. sasakii molecular level.
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Affiliation(s)
- Jia Li
- Plant Protection College, Shenyang Agricultural University, Shenyang, China.
| | - Ping Gao
- Plant Protection College, Shenyang Agricultural University, Shenyang, China
| | - Long Zhang
- College of Grassland Science and Technology, China Agricultural University, Beijing, China
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17
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Zhang YN, Xu JW, Zhang XC, Zhang XQ, Li LL, Yuan X, Mang DZ, Zhu XY, Zhang F, Dewer Y, Xu L, Wu XM. Organophosphorus insecticide interacts with the pheromone-binding proteins of Athetis lepigone: Implication for olfactory dysfunction. JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122777. [PMID: 32388456 DOI: 10.1016/j.jhazmat.2020.122777] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 04/13/2020] [Accepted: 04/16/2020] [Indexed: 06/11/2023]
Abstract
Athetis lepigone is one of the most severe polyphagous pests, and it has developed resistance to different chemical insecticides. Insects primarily rely on the olfactory system to recognize various environmental chemicals, including xenobiotics such as insecticides. Here, we expressed two A. lepigone pheromone-binding proteins (AlepPBP2 and AlepPBP3), and observed they had higher binding affinities to phoxim than other insecticides, with Ki was 3.30 ± 0.38 μM and 3.27 ± 0.10 μM, respectively. Molecular dynamics simulation, binding mode analysis, and computational alanine scanning showed that six residues (Phe15, Phe39, Ile55, Leu65, Ile97, and Phe122) of AlepPBP2 and three residues (Phe12, Ile52, and Ile134) of AlepPBP3 maybe as potential residues that can change protein ability to bind an organophosphorus insecticide phoxim. Then, we used site-directed mutagenesis assay to mutate these residues into alanine, respectively. Subsequently, the binding assays displayed that Phe15, Phe39, and Ile97 of AlepPBP2, Phe12 and Ile134 of AlepPBP3 caused a significant decrease of AlepPBPs binding ability to phoxim, suggesting they should play crucial roles in the AlepPBPs/phoxim interactions. Our findings could further advance in using PBPs as unique targets to design and develop precise and environmentally-friendly pest control agents with high insecticidal potential using a computer-aided drug design (CADD) approach.
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Affiliation(s)
- Ya-Nan Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China.
| | - Ji-Wei Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xiao-Chun Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xiao-Qing Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Lu-Lu Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xiaohui Yuan
- Institute of Biomedicine, Jinan University, Guangzhou, China; Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai, China
| | - Ding-Ze Mang
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Xiu-Yun Zhu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Fan Zhang
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan, China
| | - Youssef Dewer
- Bioassay Research Department, Central Agricultural Pesticide Laboratory, Sabahia Plant Protection Research Station, Agricultural Research Center, Alexandria, Egypt
| | - Lu Xu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Nanjing, China.
| | - Xiao-Min Wu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China.
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Yang H, Dong J, Sun YL, Hu Z, Lyu QH, Li D. Identification and expression profiles of candidate chemosensory receptors in Histia rhodope (Lepidoptera: Zygaenidae). PeerJ 2020; 8:e10035. [PMID: 33024644 PMCID: PMC7520089 DOI: 10.7717/peerj.10035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 09/03/2020] [Indexed: 12/15/2022] Open
Abstract
Insect olfaction and vision play important roles in survival and reproduction. Diurnal butterflies mainly rely on visual cues whereas nocturnal moths rely on olfactory signals to locate external resources. Histia rhodope Cramer (Lepidoptera: Zygaenidae) is an important pest of the landscape tree Bischofia polycarpa in China and other Southeast Asian regions. As a diurnal moth, H. rhodope represents a suitable model for studying the evolutionary shift from olfactory to visual communication. However, only a few chemosensory soluble proteins have been characterized and information on H. rhodope chemoreceptor genes is currently lacking. In this study, we identified 45 odorant receptors (ORs), nine ionotropic receptors (IRs), eight gustatory receptors (GRs) and two sensory neuron membrane proteins (SNMPs) from our previously acquired H. rhodope antennal transcriptomic data. The number of chemoreceptors of H. rhodope was less compared with that found in many nocturnal moths. Some specific chemoreceptors such as OR co-receptor (ORco), ionotropic receptors co-receptor, CO2 receptors, sugar receptors and bitter receptors were predicted by phylogenetic analysis. Notably, two candidate pheromone receptors (PRs) were identified within a novel PR lineage. qRT-PCR results showed that almost all tested genes (22/24) were predominantly expressed in antennae, indicating that they may be important in olfactory function. Among these antennae-enriched genes, six ORs, five IRs and two GRs displayed female-biased expression, while two ORs displayed male-biased expression. Additionally, HrhoIR75q.2 and HrhoGR67 were more highly expressed in heads and legs. This study enriches the olfactory gene inventory of H. rhodope and provides the foundation for further research of the chemoreception mechanism in diurnal moths.
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Affiliation(s)
- Haibo Yang
- College of Forestry, Henan University of Science and Technology, Luoyang, Henan, China
| | - Junfeng Dong
- College of Forestry, Henan University of Science and Technology, Luoyang, Henan, China
| | - Ya-Lan Sun
- College of Forestry, Henan University of Science and Technology, Luoyang, Henan, China
| | - Zhenjie Hu
- College of Forestry, Henan University of Science and Technology, Luoyang, Henan, China
| | - Qi-Hui Lyu
- College of Forestry, Henan University of Science and Technology, Luoyang, Henan, China
| | - Dingxu Li
- College of Forestry, Henan University of Science and Technology, Luoyang, Henan, China
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Zhang YN, Zhang XQ, Zhang XC, Xu JW, Li LL, Zhu XY, Wang JJ, Wei JY, Mang DZ, Zhang F, Yuan X, Wu XM. Key Amino Acid Residues Influencing Binding Affinities of Pheromone-Binding Protein from Athetis lepigone to Two Sex Pheromones. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6092-6103. [PMID: 32392414 DOI: 10.1021/acs.jafc.0c01572] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Athetis lepigone is a polyphagous pest found around the world that feeds on maize, wheat, and various other important crops. Although it exhibits a degree of resistance to various chemical insecticides, an effective pest-control method has not yet been developed. The sex pheromone communication system plays an essential role in the mating and reproduction of moths, in which pheromone-binding proteins (PBPs) are crucial genes. In this study, we cloned and purified the protein AlepPBP1 using an E. coli expression system and found it had a higher binding affinity to two sex pheromones of A. lepigone, namely, Z7-12:Ac and Z9-14:Ac (with Ki 0.77 ± 0.10 and 1.10 ± 0.20 μM, respectively), than to other plant volatiles. The binding-mode analysis of protein conformation with equilibrium stabilization was obtained using molecular dynamics (MD) simulation and indicated that hydrophobic interactions involving several nonpolar residues were the main driving force for the binding affinity of AlepPBP1 with sex pheromones. Computational alanine scanning (CAS) was performed to further identify key amino acid residues and validate their binding contributions. Each key residue, including Phe36, Trp37, Val52, and Phe118, was subsequently mutated into alanine using site-directed mutagenesis. Binding assays showed that the efficient binding abilities to Z7-12:Ac (F36A, W37A, and F118A) and Z9-14:Ac (F36A, W37A, V52A, and F118A) were almost lost in the mutated proteins. Our results demonstrated that these key amino acid residues are crucial for determining the binding ability of AlepPBP1 to sex pheromones. These findings provide a basis for the use of AlepPBP1 in the studies as a specific target for the development of novel behavioral antagonists with marked inhibition or mating-disruption abilities using computer-aided drug design (CADD).
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Affiliation(s)
- Ya-Nan Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Xiao-Qing Zhang
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Xiao-Chun Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Ji-Wei Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Lu-Lu Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Xiu-Yun Zhu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Juan-Juan Wang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Jun-Yuan Wei
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, P. R. China
| | - Ding-Ze Mang
- Graduate School of Bio-Applications and Systems Engineering, Tokyo University of Agriculture and Technology, Tokyo 184-8588, Japan
| | - Fan Zhang
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan 250100, P. R. China
| | - Xiaohui Yuan
- Institute of Biomedicine, Jinan University, Guangzhou 510000, P. R. China
- Zhuhai Trinomab Biotechnology Co., Ltd., Zhuhai 519000, P. R. China
| | - Xiao-Min Wu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei 235000, P. R. China
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Lizana P, Machuca J, Larama G, Quiroz A, Mutis A, Venthur H. Mating-based regulation and ligand binding of an odorant-binding protein support the inverse sexual communication of the greater wax moth, Galleria mellonella (Lepidoptera: Pyralidae). INSECT MOLECULAR BIOLOGY 2020; 29:337-351. [PMID: 32065441 DOI: 10.1111/imb.12638] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 06/10/2023]
Abstract
In moths, sex pheromones play a key role in mate finding. These chemicals are transported in the antennae by odorant-binding proteins (OBPs). Commonly, males encounter conspecific females; therefore, several OBPs are male-biased. Less is known, however, about how the olfactory system of moths has evolved toward inverse sexual communication, ie where females seek males. Therefore, the objective of this study was to identify the profile of OBPs and their expression patterns in the bee hive pest, Galleria mellonella, a moth that uses inverse sexual communication. Here, OBP-related transcripts were identified by an RNA Sequencing (RNA-Seq) approach and analysed through both Reverse Transcription Polymerase Chain Reaction (RT-PCR) in different tissues and quantitative real-time PCR for two states, virgin and postmating. Our results indicate that G. mellonella has 20 OBPs distributed amongst different tissues. Interestingly, 17 of the 20 OBPs were significantly down-regulated after mating in females, whereas only OBP7 was up-regulated. By contrast, 18 OBP transcripts were up-regulated in males after mating. Additionally, binding assays and structural simulations showed general odorant-binding protein 2 (GOBP2) was able to bind sex pheromone components and analogues. These findings suggest a possible role of OBPs, especially GOBPs, in the inverse sexual communication of G. mellonella, with gene expression regulated as a response to mating.
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Affiliation(s)
- P Lizana
- Carrera de Bioquímica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
- Laboratorio de Química Ecológica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - J Machuca
- Laboratorio de Química Ecológica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - G Larama
- Centro de Excelencia de Modelación y Computación Científica, Universidad de La Frontera, Temuco, Chile
| | - A Quiroz
- Laboratorio de Química Ecológica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente, CIBAMA, Universidad de La Frontera, Temuco, Chile
| | - A Mutis
- Laboratorio de Química Ecológica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente, CIBAMA, Universidad de La Frontera, Temuco, Chile
| | - H Venthur
- Laboratorio de Química Ecológica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
- Centro de Investigación Biotecnológica Aplicada al Medio Ambiente, CIBAMA, Universidad de La Frontera, Temuco, Chile
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Zhang F, Merchant A, Zhao Z, Zhang Y, Zhang J, Zhang Q, Wang Q, Zhou X, Li X. Characterization of MaltOBP1, a Minus-C Odorant-Binding Protein, From the Japanese Pine Sawyer Beetle, Monochamus alternatus Hope (Coleoptera: Cerambycidae). Front Physiol 2020; 11:212. [PMID: 32296339 PMCID: PMC7138900 DOI: 10.3389/fphys.2020.00212] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 02/24/2020] [Indexed: 11/13/2022] Open
Abstract
Insect Odorant-Binding Proteins (OBPs) play crucial roles in the discrimination, binding and transportation of odorants. Herein, the full-length cDNA sequence of Minus-C OBP1 (MaltOBP1) from the Japanese pine sawyer beetle, Monochamus alternatus, was cloned by 3′ and 5′ RACE-PCR and analyzed. The results showed that MaltOBP1 contains a 435 bp open reading frame (ORF) that encodes 144 amino acids, including a 21-amino acid signal peptide at the N-terminus. The matured MaltOBP1 protein possesses a predicted molecular weight of about 14 kDa and consists of six α-helices, creating an open binding pocket, and two disulfide bridges. Immunoblotting results showed that MaltOBP1 was most highly expressed in antennae in both sexes, followed by wings and legs. Fluorescence assays demonstrated that MaltOBP1 protein exhibited high binding affinity with (R)-(+)-α-pinene, (−)-β-pinene, trans-caryophyllene, (R)-(+)-limonene and (–)-verbenone, which are the main volatile compounds of the pine tree. Our combined results suggest that MaltOBP1 plays a role in host seeking behavior in M. alternatus.
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Affiliation(s)
- Fangmei Zhang
- Henan Provincial South Henan Crop Pest Green Prevention and Control Academician Workstation, Xinyang Agriculture and Forestry University, Xinyang, China.,State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Austin Merchant
- Department of Entomology, University of Kentucky, Lexington, KY, United States
| | - Zhibin Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Yunhui Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jing Zhang
- Department of Entomology, China Agricultural University, Beijing, China
| | - Qingwen Zhang
- Department of Entomology, China Agricultural University, Beijing, China
| | - Qinghua Wang
- The Key Laboratory of Forest Protection, State Forestry Administration of China, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing, China
| | - Xuguo Zhou
- Department of Entomology, University of Kentucky, Lexington, KY, United States
| | - Xiangrui Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China.,Department of Entomology, University of Kentucky, Lexington, KY, United States
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22
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Zhang XQ, Yan Q, Li LL, Xu JW, Mang D, Wang XL, Hoh HH, Ye J, Ju Q, Ma Y, Liang M, Zhang YY, Zhu XY, Zhang F, Dong SL, Zhang YN, Zhang LW. Different binding properties of two general-odorant binding proteins in Athetis lepigone with sex pheromones, host plant volatiles and insecticides. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 164:173-182. [PMID: 32284124 DOI: 10.1016/j.pestbp.2020.01.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 01/01/2020] [Accepted: 01/21/2020] [Indexed: 06/11/2023]
Abstract
Athetis lepigone (Alep) is a polyphagous pest native to Europe and Asia that has experienced major outbreaks in the summer maize area of China since 2011 and has shown evidence of resistance to some insecticides. Insect olfaction is crucial for recognition of sex pheromones, host plant volatiles and even insecticides, in which two general-odorant binding proteins (GOBPs) play important roles. To elucidate the functions of GOBPs in A. lepigone, we first expressed the two AlepGOBP proteins in the E. coli expression system. Then, the results of fluorescence competitive binding assays demonstrated that the high binding affinity of AlepGOBP2 with sex pheromones [(Z)-7-dodecenyl acetate (Z7-12:Ac), Ki = 0.65 μM; (Z)-9-tetradecenyl acetate (Z9-14:Ac), Ki = 0.83 μM], two maize plant volatiles [Ocimene, Ki = 9.63 μM; (E)-β-Farnesene, Ki = 4.76 μM] and two insecticides (Chlorpyrifos Ki =5.61 μM; Phoxim, Ki = 4.38 μM). However, AlepGOBP1 could only bind Ocimene (Ki = 13.0 μM) and two insecticides (Chlorpyrifos Ki =4.46 μM; Phoxim, Ki = 3.27 μM). These results clearly suggest that AlepGOBP1 and AlepGOBP2 differentiate among odorants and other ligands. The molecular docking results further revealed different key residues involved in the ligand binding of AlepGOBPs. In summary, this study provides a foundation for exploring the olfactory mechanism of A. lepigone and identified two potential target genes for the development of highly effective insecticides in the future.
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Affiliation(s)
- Xiao-Qing Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China; Anhui Provincial Key Laboratory of Microbial Control, School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, China; Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Qi Yan
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Lu-Lu Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Ji-Wei Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Dingze Mang
- Bioinspired Soft Matter Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Xue-Liang Wang
- Dangshan Plant Protection and Plant Inspection Service Center, Dangshan, China
| | - Hong-Huat Hoh
- Bioinspired Soft Matter Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa, Japan
| | - Jia Ye
- Anhui Provincial Key Laboratory of Microbial Control, School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, China
| | - Qian Ju
- Shandong Peanut Research Institute, Qingdao, China
| | - Yu Ma
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Meng Liang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Yun-Ying Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xiu-Yun Zhu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Fan Zhang
- Key Laboratory of Animal Resistance Research, College of Life Science, Shandong Normal University, Jinan, China
| | - Shuang-Lin Dong
- Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Ya-Nan Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Life Sciences, Huaibei Normal University, Huaibei, China.
| | - Long-Wa Zhang
- Anhui Provincial Key Laboratory of Microbial Control, School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, China.
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Antennal transcriptome analysis and expression profiles of putative chemosensory soluble proteins in Histia rhodope Cramer (Lepidoptera: Zygaenidae). COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2020; 33:100654. [PMID: 31954363 DOI: 10.1016/j.cbd.2020.100654] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/06/2020] [Accepted: 01/06/2020] [Indexed: 11/22/2022]
Abstract
Histia rhodope Cramer (Lepidoptera: Zygaenidae) is one of the most destructive defoliators of landscape tree Bischofia polycarpa (Levl.) Airy Shaw in China stretching to other Southeast Asia regions. Olfactory genes, encoding proteins such as odorant carrier proteins believed to initiate olfactory signal transduction in insects, have been acknowledged to be novel targets for pest control. In this study, we established antennal transcriptome of H. rhodope and ultimately identified 19 odorant binding proteins (OBPs), 23 chemosensory proteins (CSPs) and 4 Niemann-Pick type C2 proteins (NPC2s). The 19 OBPs, 6 CSPs and 4 NPC2s were assessed to validate the differential expressions between sexes, and between olfactory and non-olfactory tissues. 8 OBPs and 2 CSPs exhibited male-biased antennae expression, while 6 OBPs, 2 CSPs and HrhoNPC2a exhibited female-biased antennae expression. Moreover, 17 OBPs, 4 CSPs and 2 NPC2s were predominantly expressed in the antennae compared with non-olfactory tissues. HrhoOBP1 and HrhoOBP8 were predominantly expressed in the antennae and heads, HrhoCSP8 and HrhoCSP14 were highly expressed in abdomens and legs, HrhoNPC2c was highly expressed in abdomens, while HrhoNPC2d was expressed in all tissues. Phylogenetic analysis revealed that most H. rhodope proteins were closely related to proteins from other moths. Moreover, compared with other nocturnal moths, acting as a diurnal moth, we found that H. rhodope may have lost a PBP gene. Our results provide important molecular information for further studies on olfactory mechanisms of H. rhodope.
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Cheng J, Wang CY, Lyu ZH, Chen JX, Tang LP, Lin T. Candidate olfactory genes identified in Heortia vitessoides (Lepidoptera: Crambidae) by antennal transcriptome analysis. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2018; 29:117-130. [PMID: 30465940 DOI: 10.1016/j.cbd.2018.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 11/01/2018] [Indexed: 02/07/2023]
Abstract
Heortia vitessoides Moore is the most severe defoliating pest of Aquilaria sinensis (Lour.) Gilg (Thymelaeaceae) forests. Olfaction in insects is essential for host identification, mating, and oviposition, in which olfactory proteins, including odorant-binding proteins (OBPs), chemosensory proteins (CSPs), olfactory receptors (ORs), ionotropic receptors (IRs), and sensory neuron membrane proteins (SNMPs), are responsible for chemical signaling. Here, we determined the transcriptomes of male and female adult antennae of H. vitessoides. We assembled 52,383 unigenes and annotated their putative gene functions based on the gene ontology (GO), eukaryotic ortholog groups (KOG), and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. Overall, 61 olfactory-related transcripts, including nine OBPs, 10 CSPs, 28 ORs, 12 IRs, and two SNMPs, were identified. Expression patterns of OBPs and CSPs in the female antennae, male antennae, and legs were performed using reverse transcription quantitative PCR (RT-qPCR). The results revealed that HvitOBP1, HvitOBP6, and HvitGOBP1 were enriched in the female antennae, while HvitOBP2, HvitOBP3, HvitOBP5, HvitGOBP2, and HvitPBP1 were enriched in the male antennae. HvitOBP4 was expressed at nearly the same level in the antennae of both males and females. Four CSPs (HvitCSP3, HvitCSP5, HvitCSP7, and HvitCSP10) and two CSPs (HvitCSP1 and HvitCSP4) were expressed at higher levels in the female and male antennae, respectively. HvitCSP6 was expressed at higher levels both in the female antennae and legs. Three CSP genes (HvitCSP2, HvitCSP8, and HvitCSP9) were expressed at higher levels in the legs. These results provide a basis for further studies on the molecular olfactory mechanisms of H. vitessoides.
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Affiliation(s)
- Jie Cheng
- College of Forestry and Landscape Architecture, South China Agricultural University, 483 Wushan Road, Guangdong Province, Guangzhou 510642, China
| | - Chun-Yan Wang
- College of Forestry and Landscape Architecture, South China Agricultural University, 483 Wushan Road, Guangdong Province, Guangzhou 510642, China
| | - Zi-Hao Lyu
- College of Forestry and Landscape Architecture, South China Agricultural University, 483 Wushan Road, Guangdong Province, Guangzhou 510642, China
| | - Jing-Xiang Chen
- College of Forestry and Landscape Architecture, South China Agricultural University, 483 Wushan Road, Guangdong Province, Guangzhou 510642, China
| | - Li-Pin Tang
- College of Forestry and Landscape Architecture, South China Agricultural University, 483 Wushan Road, Guangdong Province, Guangzhou 510642, China
| | - Tong Lin
- College of Forestry and Landscape Architecture, South China Agricultural University, 483 Wushan Road, Guangdong Province, Guangzhou 510642, China.
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25
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Zhang YN, Qian JL, Xu JW, Zhu XY, Li MY, Xu XX, Liu CX, Xue T, Sun L. Identification of Chemosensory Genes Based on the Transcriptomic Analysis of Six Different Chemosensory Organs in Spodoptera exigua. Front Physiol 2018; 9:432. [PMID: 29740343 PMCID: PMC5928209 DOI: 10.3389/fphys.2018.00432] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 04/06/2018] [Indexed: 12/25/2022] Open
Abstract
Insects have a complex chemosensory system that accurately perceives external chemicals and plays a pivotal role in many insect life activities. Thus, the study of the chemosensory mechanism has become an important research topic in entomology. Spodoptera exigua Hübner (Lepidoptera: Noctuidae) is a major agricultural polyphagous pest that causes significant agricultural economic losses worldwide. However, except for a few genes that have been discovered, its olfactory and gustatory mechanisms remain uncertain. In the present study, we acquired 144,479 unigenes of S. exigua by assembling 65.81 giga base reads from 6 chemosensory organs (female and male antennae, female and male proboscises, and female and male labial palps), and identified many differentially expressed genes in the gustatory and olfactory organs. Analysis of the transcriptome data obtained 159 putative chemosensory genes, including 24 odorant binding proteins (OBPs; 3 were new), 19 chemosensory proteins (4 were new), 64 odorant receptors (57 were new), 22 ionotropic receptors (16 were new), and 30 new gustatory receptors. Phylogenetic analyses of all genes and SexiGRs expression patterns using quantitative real-time polymerase chain reactions were investigated. Our results found that several of these genes had differential expression features in the olfactory organs compared to the gustatory organs that might play crucial roles in the chemosensory system of S. exigua, and could be utilized as targets for future functional studies to assist in the interpretation of the molecular mechanism of the system. They could also be used for developing novel behavioral disturbance agents to control the population of the moths in the future.
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Affiliation(s)
- Ya-Nan Zhang
- Department of Biological Sciences, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Jia-Li Qian
- Department of Biological Sciences, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Ji-Wei Xu
- Department of Biological Sciences, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xiu-Yun Zhu
- Department of Biological Sciences, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Meng-Ya Li
- Department of Biological Sciences, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Xiao-Xue Xu
- Department of Biological Sciences, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Chun-Xiang Liu
- Department of Biological Sciences, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Tao Xue
- Department of Biological Sciences, College of Life Sciences, Huaibei Normal University, Huaibei, China
| | - Liang Sun
- Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, China
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