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Mahajan A, Devi M, Saini HS, Kaur S. Implications of cypermethrin exposure on population dynamics and fitness traits of laboratory-selected resistant and susceptible populations of Spodoptera litura (Fabricius). CHEMOSPHERE 2024; 364:143186. [PMID: 39191347 DOI: 10.1016/j.chemosphere.2024.143186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 08/22/2024] [Accepted: 08/23/2024] [Indexed: 08/29/2024]
Abstract
The tobacco cutworm, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) is an economically important agricultural polyphagous pest worldwide. It has shown high resistance to several insecticides, including cypermethrin, a synthetic pyrethroid that is used in large-scale commercial agricultural applications. The present study investigated the development of selection-induced resistance to cypermethrin and associated fitness costs in S. litura. After continuous exposure to cypermethrin for consecutive fifteen generations, the cypermethrin-selected population (CYP-Sel) of S. litura developed a 21.2-fold resistance. The CYP-Sel strain had a relative fitness of 0.16 when treated with LC50, prolonged larval duration, and development time. Meanwhile, the strain also showed shorter adult duration, lower fecundity, and hatchability compared with the Unsel-Lab population. CYP-Sel population showed a significant disadvantage in intrinsic rate of natural increase (rm), net reproductive rate (Ro), and finite rate of increase (λ) when compared to the Unsel-Lab population. This knowledge could help to design resistance management strategies against this particular pest, along with potential management strategies to overcome the development of resistance.
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Affiliation(s)
- Arushi Mahajan
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India.
| | - Meena Devi
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India.
| | | | - Sanehdeep Kaur
- Department of Zoology, Guru Nanak Dev University, Amritsar, Punjab, India.
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North HL, Fu Z, Metz R, Stull MA, Johnson CD, Shirley X, Crumley K, Reisig D, Kerns DL, Gilligan T, Walsh T, Jiggins CD, Sword GA. Rapid Adaptation and Interspecific Introgression in the North American Crop Pest Helicoverpa zea. Mol Biol Evol 2024; 41:msae129. [PMID: 38941083 PMCID: PMC11259193 DOI: 10.1093/molbev/msae129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 06/12/2024] [Accepted: 06/14/2024] [Indexed: 06/29/2024] Open
Abstract
Insect crop pests threaten global food security. This threat is amplified through the spread of nonnative species and through adaptation of native pests to control measures. Adaptations such as pesticide resistance can result from selection on variation within a population, or through gene flow from another population. We investigate these processes in an economically important noctuid crop pest, Helicoverpa zea, which has evolved resistance to a wide range of pesticides. Its sister species Helicoverpa armigera, first detected as an invasive species in Brazil in 2013, introduced the pyrethroid-resistance gene CYP337B3 to South American H. zea via adaptive introgression. To understand whether this could contribute to pesticide resistance in North America, we sequenced 237 H. zea genomes across 10 sample sites. We report H. armigera introgression into the North American H. zea population. Two individuals sampled in Texas in 2019 carry H. armigera haplotypes in a 4 Mbp region containing CYP337B3. Next, we identify signatures of selection in the panmictic population of nonadmixed H. zea, identifying a selective sweep at a second cytochrome P450 gene: CYP333B3. We estimate that its derived allele conferred a ∼5% fitness advantage and show that this estimate explains independently observed rare nonsynonymous CYP333B3 mutations approaching fixation over a ∼20-year period. We also detect putative signatures of selection at a kinesin gene associated with Bt resistance. Overall, we document two mechanisms of rapid adaptation: the introduction of fitness-enhancing alleles through interspecific introgression, and selection on intraspecific variation.
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Affiliation(s)
- Henry L North
- Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Zhen Fu
- Department of Entomology, Texas A&M University, College Station, TX 77843, USA
- Bioinformatics and Biostatistics Core, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Richard Metz
- AgriLife Genomics and Bioinformatics Service, Texas A&M University, College Station, TX 77843, USA
| | - Matt A Stull
- AgriLife Genomics and Bioinformatics Service, Texas A&M University, College Station, TX 77843, USA
| | - Charles D Johnson
- AgriLife Genomics and Bioinformatics Service, Texas A&M University, College Station, TX 77843, USA
| | - Xanthe Shirley
- Animal and Plant Health Inspection Service, United States Department of Agriculture, College Station, TX, USA
| | - Kate Crumley
- Agrilife Extension, Texas A&M University, Wharton, TX, USA
| | - Dominic Reisig
- Department of Entomology and Plant Pathology, North Carolina State University, Plymouth, NC, 27962, USA
| | - David L Kerns
- Department of Entomology, Texas A&M University, College Station, TX 77843, USA
| | - Todd Gilligan
- Animal and Plant Health Inspection Service, United States Department of Agriculture, Fort Collins, CO, USA
| | - Tom Walsh
- Black Mountain Laboratories, Commonwealth Scientific and Industrial Research Organization, Canberra, Australia
| | - Chris D Jiggins
- Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, UK
| | - Gregory A Sword
- Department of Entomology, Texas A&M University, College Station, TX 77843, USA
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Dou T, Bai S, Gao F, Tian L, Zhu J, Gu X, Yang X, Hao Y, An S, Liu X, Yin X. Improved effects of Helicoverpa armigera nucleopolyhedrovirus integrated with Campoletis chlorideae against H. armigera and impact of the virus on the parasitoid. PEST MANAGEMENT SCIENCE 2024; 80:1145-1152. [PMID: 37874124 DOI: 10.1002/ps.7845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 10/25/2023]
Abstract
BACKGROUND Combined use can be an effective measure to improve pest control by viruses and parasitic wasps. However, not all combinations of natural enemies show improved effects. Helicoverpa armigera nucleopolyhedrovirus (HearNPV) and Campoletis chlorideae Uchida are two important natural enemies of Helicoverpa armigera. This study aimed to investigate the combined effects of C. chlorideae and HearNPV against H. armigera larvae and the impact of HearNPV on C. chlorideae. RESULTS The combination of HearNPV and C. chlorideae exerted increased mortality on H. armigera when C. chlorideae parasitized larvae one day after infection with HearNPV. C. chlorideae could distinguish between HearNPV-infected and noninfected larvae. Besides influencing host selection of C. chlorideae, HearNPV infection had negative effects on the development and reproduction of C. chlorideae. The developmental time of C. chlorideae was significantly prolonged and the percentage of emergence and adult eclosion of C. chlorideae was lower in infected hosts. The adult wasps were also smaller in body size, and female adults had fewer eggs when they developed in virus-infected hosts. CONCLUSIONS HearNPV combined with C. chlorideae could improve the efficacy of biological control against H. armigera. The results provided valuable information on the importance of timing in the combined use of HearNPV and C. chlorideae for the biological control of H. armigera. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Tao Dou
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
- NanoAgro Center, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Sufen Bai
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
| | - Futao Gao
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
- NanoAgro Center, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Liangheng Tian
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
| | - Junhua Zhu
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
- NanoAgro Center, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Xiaohang Gu
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
| | - Xifa Yang
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
- NanoAgro Center, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Youwu Hao
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
- NanoAgro Center, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Shiheng An
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
| | - Xiangyang Liu
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
- NanoAgro Center, College of Plant Protection, Henan Agricultural University, Zhengzhou, China
| | - Xinming Yin
- College of Plant Protection, Henan Agricultural University, Zhengzhou, China
- Henan Engineering Laboratory of Pest Biological Control, Zhengzhou, China
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Ni R, Wang Y, Zhong Q, Li M, Zhang D, Zhang Y, Qiu X. Absence of known knockdown resistance mutations but fixation of CYP337B3 was detected in field populations of Helicoverpa armigera across China. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2023; 195:105542. [PMID: 37666613 DOI: 10.1016/j.pestbp.2023.105542] [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: 05/31/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 09/06/2023]
Abstract
The cotton bollworm (Helicoverpa armigera) is a worldwide agricultural pest that infests many important crops. Pyrethroids targeting the voltage-gated sodium channel (VGSC) have been long used in the control of the cotton bollworm. Two amino acid substitutions (D1561V and E1565G) in H. armigera VGSC (HaVGSC) and the presence of a chimeric P450 gene (CYP337B3) have been documented to be associated with pyrethroid resistance. To understand the current occurrence of kdr mutations and the CYP337B3 gene in Chinese H. armigera populations, high-throughput amplicon sequencing was adopted to detect potential nucleotide variations in three fragments of the VGSC gene that cover 10 reported knockdown resistance (kdr) sites in insects, and gene-specific PCR was performed to examine the presence of CYP337B3 gene in H. armigera samples collected across China. The nucleotide variation analysis revealed a wealth of nucleotide variations in not only exons but also introns in the VGSC gene in Chinese H. armigera populations. However, neither previously reported kdr-conferring amino acid replacements nor other non-synonymous mutations were observed in a total of 1439 examined individuals. Population genetic analysis suggested that the H. armigera population in Nanchang, Jiangxi Province (JNC) had a moderate genetic differentiation from other populations, while no significant divergence was observed in other populations in northern and northwestern China. The CYP337B3 was present in all the examined individuals, indicating that CYP337B3 is extensively fixed in H. armigera populations across China. These results support that point mutations in VGSC are not a major factor involved in the current pyrethroid resistance in H. armigera. Instead, CYP337B3 plays a prevalent role in the development of resistance to pyrethroids in H. armigera.
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Affiliation(s)
- Ruoyao Ni
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yawei Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Qiuzan Zhong
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Ganzhou Vegetable and Flower Research Institute, Ganzhou, Jiangxi Province 341413, China.
| | - Mei Li
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
| | - Dandan Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, 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.
| | - Xinghui Qiu
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
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Jin M, North HL, Peng Y, Liu H, Liu B, Pan R, Zhou Y, Zheng W, Liu K, Yang B, Zhang L, Xu Q, Elfekih S, Valencia-Montoya WA, Walsh T, Cui P, Zhou Y, Wilson K, Jiggins C, Wu K, Xiao Y. Adaptive evolution to the natural and anthropogenic environment in a global invasive crop pest, the cotton bollworm. Innovation (N Y) 2023; 4:100454. [PMID: 37388193 PMCID: PMC10300404 DOI: 10.1016/j.xinn.2023.100454] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/27/2023] [Indexed: 07/01/2023] Open
Abstract
The cotton bollworm, Helicoverpa armigera, is set to become the most economically devastating crop pest in the world, threatening food security and biosafety as its range expands across the globe. Key to understanding the eco-evolutionary dynamics of H. armigera, and thus its management, is an understanding of population connectivity and the adaptations that allow the pest to establish in unique environments. We assembled a chromosome-scale reference genome and re-sequenced 503 individuals spanning the species range to delineate global patterns of connectivity, uncovering a previously cryptic population structure. Using a genome-wide association study (GWAS) and cell line expression of major effect loci, we show that adaptive changes in a temperature- and light-sensitive developmental pathway enable facultative diapause and that adaptation of trehalose synthesis and transport underlies cold tolerance in extreme environments. Incorporating extensive pesticide resistance monitoring, we also characterize a suite of novel pesticide and Bt resistance alleles under selection in East China. These findings offer avenues for more effective management strategies and provide insight into how insects adapt to variable climatic conditions and newly colonized environments.
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Affiliation(s)
- Minghui Jin
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, West Yuanmingyuan Road, Beijing 100193, China
| | - Henry L. North
- Department of Zoology, University of Cambridge, Cambridge CB2 1SZ, UK
| | - Yan Peng
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Hangwei Liu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Bo Liu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Ruiqing Pan
- Berry Genomics Corporation, Beijing 102200, China
| | - Yan Zhou
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, West Yuanmingyuan Road, Beijing 100193, China
| | - Weigang Zheng
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Kaiyu Liu
- Institute of Entomology, School of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Bo Yang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Lei Zhang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Qi Xu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Samia Elfekih
- Australian Centre for Disease Preparedness (ACDP), CSIRO Health & Biosecurity, East Geelong, VIC 3169, Australia
- Bio21 Institute and the School of Biosciences, The University of Melbourne, Melbourne, VIC 3010, Australia
| | - Wendy A. Valencia-Montoya
- Department of Organismic and Evolutionary Biology and Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138, USA
| | - Tom Walsh
- CSIRO Land and Water, Black Mountain Laboratories, Canberra, ACT 2601, Australia
| | - Peng Cui
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Yongfeng Zhou
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
| | - Kenneth Wilson
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YW, UK
| | - Chris Jiggins
- Department of Zoology, University of Cambridge, Cambridge CB2 1SZ, UK
| | - Kongming Wu
- The State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, West Yuanmingyuan Road, Beijing 100193, China
| | - Yutao Xiao
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Key Laboratory of Gene Editing Technologies (Hainan), Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518116, China
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Muthusamy R, Ramkumar G, Kumarasamy S, Chi NTL, Al Obaid S, Alfarraj S, Karuppusamy I. Synergism and toxicity of iron nanoparticles derived from Trigonella foenum-graecum against pyrethriod treatment in S. litura and H. armigera (Lepidoptera: Noctuidae). ENVIRONMENTAL RESEARCH 2023:116079. [PMID: 37156353 DOI: 10.1016/j.envres.2023.116079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/03/2023] [Accepted: 05/05/2023] [Indexed: 05/10/2023]
Abstract
The tobacco cutworm, Spodoptera litura and cotton bollworm, Helicoverpa armigera (Lepidoptera: Noctuidae) are important pests of various agricultural crops that cause sevier economic loses throughout the world. Indiscriminate and frequent use of insecticide may lead to development of resistance in these pests. Nanotechnology has given an alternative to manage and overcome insecticide resistance for pest management strategies. In the present study the iron nanoparticles derived from Trigonella foenum-graecum leaf extract (FeNPs) was investigated for its ecofriendly management of pyrethroid resistance in two lepidopteron pest species at 24 h, 48 h and 72 h post treatment. The result showed high mortality (92.83% and 91.41%) of S. litura and H. armigera at 72 h treatment upon FeNPs and fenvalerate (Fen + FeNPs) teratment. Probit analysis revealed high LC50 upon Fen + FeNPs treatment (130.31 and 89.32 mg/L) with a synergism ratio of 1.38 and 1.36. Antifeedant activity of six dofferent concentration of FeNPs revelaed increased antifeedant activity with respect to increasing concentration of nanoparticles ranging from 10 to 90% and 20-95% againt both insects (p<0.05). Detoxification activity of carboxylesterase was elevated at 630 μmol/mg protein/min (p<0.05) in fenvalerate treatment, whereas decreased activity was found (392umole/mg protein/min) in FeNPs and Fen + FeNPs treatment (P<0.001). GST and P450 activity was also increased in fenvalerate treatment, whereas decreased activity was observed in FeNPs and Fen + FeNPs. Esterase isoenzyme banding pattern revealed four bands in fenvalerate treatment and two bans (E3 and E4) in Fen + FeNPs combination. Hence the present study concludes that T. foenum-graecum synthesized iron nanoparticles could be an effective alternate for ecofriendly management of S. litura and H. armigera.
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Affiliation(s)
- Ranganathan Muthusamy
- PG and Research Centre in Biotechnology, MGR College, Adhiyamaan Educational Research Institute, Hosur, 635 130, Tamil Nadu, India
| | - Govindaraju Ramkumar
- Department of Entomology, College of Agricultural and Environmental Sciences, University of Georgia, Griffin, 30223, GA, USA
| | - Suresh Kumarasamy
- PG and Research Centre in Biotechnology, MGR College, Adhiyamaan Educational Research Institute, Hosur, 635 130, Tamil Nadu, India
| | - Nguyen Thuy Lan Chi
- School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Sami Al Obaid
- Department of Botany and Microbiology, College of Science, King Saud University, PO Box-2455, Riyadh, 11451, Saudi Arabia
| | - Saleh Alfarraj
- Zoology Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Indira Karuppusamy
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
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7
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Boff JS, Reis AC, de Oliveira JL, Gross RB, Fraceto LF, Melo AA, Bernardi O. Development and biological evaluation of nanoencapsulated-based pyrethroids with synergists for resistance management of two soybean pests: insights for new insecticide formulations. PEST MANAGEMENT SCIENCE 2023; 79:1204-1212. [PMID: 36412537 DOI: 10.1002/ps.7295] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/11/2022] [Accepted: 11/22/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Chemical control is commonly used against Euschistus heros (F.) and Chrysodeixis includens (Walker) in soybean fields in South America. However, previous studies reported that these pests have reduced susceptibility to pyrethroids in Brazil. On this basis, we developed and evaluated nanoencapsulated-based bifenthrin (BFT) and λ-cyhalothrin (LAM) with the synergists piperonyl butoxide (PBO) and diethyl maleate (DEM) for insect resistance management (IRM). RESULTS Nanoformulations of BFT and LAM with PBO and DEM presented good physical-chemical characteristics and were stable. The spherical morphology of all systems and the encapsulation efficiency in nanostructured lipid carriers did not change when synergists were added. Nanoencapsulated BFT with DEM applied topically increased the susceptibility of E. heros to BFT by 3.50-fold. Similarly, nanoencapsulated BFT and LAM with PBO in diet-overlay bioassays increased the susceptibility of C. includens to both chemicals by up to 2.16-fold. Nanoencapsulated BFT and LAM with synergists also improve control efficacy of both species, causing higher mortality than commercial products containing these chemistries. CONCLUSIONS It is possible to develop nanoencapsulated-based formulations of BFT and LAM with PBO or DEM, and these nanoformulations have the potential to improve control of E. heros and C. includens with recognized low susceptibility to pyrethroids. This study provides updates for designing new insecticide formulations for IRM. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Jéssica S Boff
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Alexandre C Reis
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Jhones L de Oliveira
- Faculty of Agronomy and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, SP, Brazil
| | - Renata B Gross
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Leonardo F Fraceto
- Institute of Science and Technology, São Paulo State University (UNESP), Sorocaba, SP, Brazil
| | - Adriano A Melo
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Oderlei Bernardi
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil
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8
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Muraro DS, Gonçalves TM, Amado D, Lima MF, Popham HJR, Marçon PG, Omoto C. Baseline Susceptibility and Cross-Resistance of HearNPV in Helicoverpa armigera (Lepidoptera: Noctuidae) in Brazil. INSECTS 2022; 13:820. [PMID: 36135521 PMCID: PMC9505350 DOI: 10.3390/insects13090820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/30/2022] [Accepted: 09/03/2022] [Indexed: 06/16/2023]
Abstract
The marked adoption of bioinsecticides in Brazilian agriculture in recent years is, at least partially, explained by the increasingly higher levels of insect pest resistance to synthetic insecticides. In particular, several baculovirus-based products have been registered in the last 5 years, including Helicoverpa armigera nucleopolyhedrovirus (HearNPV: Baculoviridae: Alphabaculovirus (Armigen®)). Understanding the susceptibility of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) to HearNPV is an important step toward development of robust Integrated Pest Management (IPM) and Insect Resistance Management programs (IRM) aimed at managing this serious insect pest. In this study, droplet feeding bioassays were used to characterize the baseline susceptibility to HearNPV (Armigen®) in H. armigera populations collected from major soybean and cotton-growing regions in Brazil. We defined and validated a diagnostic concentration for susceptibility monitoring of H. armigera populations to HearNPV. Additionally, cross-resistance between HearNPV and the insecticides flubendiamide and indoxacarb was evaluated by testing HearNPV in a susceptible strain and in resistant strains of H. armigera to these insecticides. A low interpopulation variation of H. armigera to HearNPV was detected. The LC50 values ranged from 1.5 × 105 to 1.1 × 106 occlusion bodies (OBs) per mL (7.3-fold variation). The mortality rate at the identified diagnostic concentration of 6.3 × 108 OBs/mL, based on the calculated LC99, ranged from 98.6 to 100% in populations of H. armigera collected from 2018 to 2020. No cross-resistance was detected between HearNPV and flubendiamide or indoxacarb. These results suggest that HearNPV (Armigen®) can be an effective tool in IPM and IRM programs to control H. armigera in Brazil.
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Affiliation(s)
- Dionei Schmidt Muraro
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13419-900, Brazil
| | - Thaini M. Gonçalves
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13419-900, Brazil
| | - Douglas Amado
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13419-900, Brazil
| | | | | | | | - Celso Omoto
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba 13419-900, Brazil
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Fite T, Tefera T, Husemann M, Getaneh G, Villinger J. Genetic Variation and Population Structure of the Old World Bollworm Helicoverpa armigera (Hübner, 1808) (Lepidoptera: Noctuidae) in Ethiopia. ENVIRONMENTAL ENTOMOLOGY 2022; 51:859-869. [PMID: 35797027 DOI: 10.1093/ee/nvac039] [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: 12/14/2021] [Indexed: 06/15/2023]
Abstract
Helicoverpa armigera is one of the most destructive insect pests of economically valuable crops in the world. Despite its economic importance, the population genetic structure of this insect remains unexplored in Ethiopia. To investigate the genetic diversity and population structure of H. armigera, we sampled 170 individuals from 15 populations throughout Ethiopia. We sequenced a fragment of the mitochondrial cytochrome b (cyt b) gene and five exon-primed intron-crossing (EPIC) markers. Twenty cyt b haplotypes with low-to-moderate haplotype diversity (mean Hd = 0.537) and high nucleotide diversity (mean Pi = 0.00339) were identified. The most frequently observed and widely distributed cyt b haplotype was designated as Hap_1 (67.058%), which is identical to sequences found across the globe. Tajima's D and Fu's F for the cyt b data were negative, supporting a model of population expansion. Within populations, a mean of 2.493 alleles/locus was recorded across the five EPIC loci, ranging from 1.200 to 3.600 alleles/locus. The highest mean effective number of alleles/population was 2.369 and the lowest was 1.178. The mean observed heterozygosity (HO) of the five loci (0-0.289; mean 0.104 ± 0.020) was lower than the expected heterozygosity (HE) (0.095-0.523; mean 0.258 ± 0.028). AMOVA detected significant genetic structure with 61% of the total molecular genetic variation of EPIC genotypes occurring between populations, suggesting a considerable degree of differentiation among populations. STRUCTURE analyses clustered the H. armigera populations into three distinct population groups but very low isolation by distance (R2 = 0.0132, P < 0.05).
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Affiliation(s)
- Tarekegn Fite
- International Centre of Insect Physiology and Ecology (icipe), Addis Ababa, Ethiopia
- School of Plant Sciences, College of Agriculture and Environmental Sciences, Haramaya University, Dire Dhawa, Ethiopia
| | - Tadele Tefera
- International Centre of Insect Physiology and Ecology (icipe), Addis Ababa, Ethiopia
| | - Martin Husemann
- Museum der Natur, Leibniz Institute for the Analysis of Biodiversity Change, Martin-Luther-King-Platz 3, 20146 Hamburg, Germany
| | - Gezahegne Getaneh
- Ethiopian Institute of Agricultural Research, Ambo Plant Protection Research Center, P.O. Box 2003, Addis Ababa, Ethiopia
| | - Jandouwe Villinger
- International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772, Nairobi 00100, Kenya
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10
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Boff JS, Reis AC, Patricia DSG, Pretto VE, Garlet CG, Melo AA, Bernardi O. The Effect of Synergistic Compounds on the Susceptibility of Euschistus heros (Hemiptera: Pentatomidae) and Chrysodeixis includens (Lepidoptera: Noctuidae) to Pyrethroids. ENVIRONMENTAL ENTOMOLOGY 2022; 51:421-429. [PMID: 35137018 DOI: 10.1093/ee/nvac005] [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: 11/11/2021] [Indexed: 06/14/2023]
Abstract
The Neotropical brown stink bug, Euschistus heros (F.), and the soybean looper, Chrysodeixis includens (Walker), are key pests of soybean in South America. Low susceptibility to pyrethroids has been reported for both species in Brazil. Here, we evaluate the addition of synergistic compounds piperonyl butoxide (PBO) and diethyl maleate (DEM) to manage E. heros and C. includens with resistance to λ-cyhalothrin and bifenthrin. The LD50 of technical grade and commercial products containing λ-cyhalothrin and bifenthrin decreased against field-collected E. heros exposed to PBO and DEM relative to unexposed insects; synergistic ratios up to 4.75-fold. The mortality also increased when E. heros were exposed to commercial formulations containing λ-cyhalothrin (from 4 to 44%) and bifenthrin (from 44 to 88%) in the presence of synergists. There was also a higher susceptibility of field-collected C. includens to technical grade λ-cyhalothrin when PBO was used; synergistic ratio of 5.50-fold. High lethally of technical grade λ-cyhalothrin was also verified in the presence of PBO, with mortality increasing from 6 to 57%. Our findings indicate the potential utility of synergists in reversing the resistance to λ-cyhalothrin and bifenthrin in E. heros and C. includens and suggest a significant role of metabolic mechanisms underlying the detoxification of both pyrethroids.
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Affiliation(s)
- Jéssica S Boff
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Alexandre C Reis
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - da S Gubiani Patricia
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Venicius E Pretto
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Cínthia G Garlet
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Adriano A Melo
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Oderlei Bernardi
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
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11
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Rios DA, Specht A, Roque-Specht VF, Sosa-Gómez DR, Fochezato J, Malaquias JV, Gonçalves GL, Moreira GR. Helicoverpa armigera and Helicoverpa zea hybridization: constraints, heterosis, and implications for pest management. PEST MANAGEMENT SCIENCE 2022; 78:955-964. [PMID: 34729903 DOI: 10.1002/ps.6705] [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: 10/12/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The invasion of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) into the New World has made it possible for this pest to hybridize with a native American species, H. zea (Boddie), under natural conditions. We investigated the viability and development of hybrids of these two Helicoverpa species. We reared the parental species and evaluated crosses between H. armigera males and H. zea females and vice versa, two intercrosses between hybrids, and eight backcrosses between hybrids and parental species. We estimated the length of immature stages, fecundity, survival, sex ratio, and heterosis. RESULTS Although hybridization occcurred, with heterosis during the development of immatures, reproductive incompatibilities also were observed between the parental species and between hybrids from subsequent crosses. The interspecific crosses between hybrids and backcrosses confirmed the possibility of introgression events and their perpetuation in field populations. The results indicate that hybridization events are favored at high population levels, while at low population levels the 'species identities' will be maintained. CONCLUSIONS The possibility of interspecific gene flow and its perpetuation through successive crosses and backcrosses suggests several recommenations for management. Populations of both species should be maintained at an equilibrium level to reduce the chance of interspecific crosses, which are presumably more likely to occur during pest outbreaks. The existence of hybridization and resistance to different active pesticide ingredients should be monitored. All practices related to managing the resistance of these pests to chemical and biological insecticides should be systematized to reduce the chance of selecting for resistant individuals.
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Affiliation(s)
- Danielly Am Rios
- Faculdade UnB Planaltina, Universidade de Brasília, Planaltina, Brazil
| | | | | | | | - Júlia Fochezato
- Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Gislene L Gonçalves
- Departamento de Recursos Ambientales, Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Arica, Chile
| | - Gilson Rp Moreira
- Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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12
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Machado EP, Garlet CG, Weschenfelder MAG, Führ FM, Godoy DN, Pretto VE, Contini RE, Franco CR, Omoto C, Bernardi O. Interspecific Variation in Susceptibility to Insecticides by Lepidopteran Pests of Soybean, Cotton, and Maize Crops From Brazil. JOURNAL OF ECONOMIC ENTOMOLOGY 2022; 115:305-312. [PMID: 34993551 DOI: 10.1093/jee/toab265] [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: 09/03/2021] [Indexed: 06/14/2023]
Abstract
The interspecific variation in susceptibility to insecticides by lepidopteran species of soybean [Glycine max L. (Merr.)], cotton (Gossypium hirsutum L.), and maize (Zea mays L.) crops from Brazil were evaluated. Populations of Anticarsia gemmatalis (Hübner) (Lepidoptera: Erebidae), Chrysodeixis includens (Walker), Helicoverpa armigera (Hübner), Spodoptera frugiperda (Smith), Spodoptera eridania (Stoll), Spodoptera cosmioides (Walker), and Spodoptera albula (Walker) (Lepidoptera: Noctuidae) were collected from 2019 to 2021. Early L3 larvae (F2 generation) were exposed to the formulated insecticides methoxyfenozide, indoxacarb, spinetoram, flubendiamide, and chlorfenapyr in diet-overlay bioassays. The median lethal concentrations (LC50) were used to calculate tolerance ratios (TR) of each species in relation to the most susceptible species to each insecticide. The lowest LC50 values were verified for A. gemmatalis to all insecticides tested. Chrysodeixis includens and most of the Spodoptera species were moderately tolerant to methoxyfenozide (TR < 8.0-fold) and indoxacarb (TR < 39.4-fold), whereas H. armigera was the most tolerant species to methoxyfenozide (TR = 21.5-fold), and indoxacarb (TR = 106.4-fold). Spodoptera cosmioides, S. eridania, and S. albula showed highest tolerance to spinetoram (TR > 1270-fold), S. eridania, S. frugiperda, and S. albula to flubendiamide (TR from 38- to 547-fold), and S. albula to indoxacarb (TR = 138.6-fold). A small variation in susceptibility to chlorfenapyr (TR < 4.4-fold) was found among the lepidopteran evaluated. Our findings indicate a large variation in susceptibility to indoxacarb, spinetoram, and flubendiamide and a relatively low variation in susceptibility to methoxyfenozide and chlorfenapyr by lepidopteran species of soybean, cotton, and maize from Brazil.
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Affiliation(s)
- Eduardo P Machado
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
- Department of Entomology and Acarology, University of São Paulo (USP), Padua Dias Avenue 11, Piracicaba, São Paulo 13418-900, Brazil
| | - Cínthia G Garlet
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Marlon A G Weschenfelder
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Fábio M Führ
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
- Department of Entomology and Acarology, University of São Paulo (USP), Padua Dias Avenue 11, Piracicaba, São Paulo 13418-900, Brazil
| | - Daniela N Godoy
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Venicius E Pretto
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Rafael E Contini
- Department of Agronomy, Santa Catarina State University, Luiz de Camões Avenue 2090, Lages, Santa Catarina 88520-000, Brazil
| | - Cláudio R Franco
- Department of Agronomy, Santa Catarina State University, Luiz de Camões Avenue 2090, Lages, Santa Catarina 88520-000, Brazil
| | - Celso Omoto
- Department of Entomology and Acarology, University of São Paulo (USP), Padua Dias Avenue 11, Piracicaba, São Paulo 13418-900, Brazil
| | - Oderlei Bernardi
- Department of Plant Protection, Federal University of Santa Maria (UFSM), Roraima Avenue 1000, Santa Maria, Rio Grande do Sul 97105-900, Brazil
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13
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Joußen N, Heckel DG. Saltational evolution of a pesticide-metabolizing cytochrome P450 in a global crop pest. PEST MANAGEMENT SCIENCE 2021; 77:3325-3332. [PMID: 33763946 DOI: 10.1002/ps.6376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND The cotton bollworm, Helicoverpa armigera (Hübner), is a damaging insect pest threatening agricultural crops worldwide as a result of its resistance to insecticides. Metabolic resistance to pyrethroid insecticides is conferred by the chimeric P450 enzyme CYP337B3, produced by unequal crossing-over between CYP337B1 and CYP337B2. CYP337B3 is 99.7% similar to CYP337B1 except for the 177 N-terminal amino acids (AAs) containing the substrate recognition site 1 from CYP337B2. Here, we studied the structure-function relationship of CYP337B3 and CYP337B1 to determine the AAs that enable CYP337B3 to efficiently hydroxylate the 4'-carbon position of fenvalerate, which neither CYP337B1 nor CYP337B2 can do. RESULTS Site-directed mutagenesis showed that the L114F substitution in CYP337B3 reduced its 4'-hydroxylation activity by 89%, but the reciprocal F114L substitution in CYP337B1 increased its 4'-hydroxylation activity to only 49% of the level of CYP337B3. Docking models showed that AA 114 seems to have different functions in CYP337B1 and CYP337B3. Antibodies detected two- to three-fold more CYP337B1 than CYP337B3 in larval cuticle, which along with a 49% 4'-hydroxylation activity increase due to a F114L substitution in vivo might be expected to provide as much protection for the larva against exposure to fenvalerate as CYP337B3. However, CYP337B3 is present at much higher frequencies than CYP337B1-CYP337B2 in most populations, including those recently invading South America. CONCLUSION The metabolic resistance to pyrethroids in H. armigera has evolved by saltational evolution - by a single mutation, an unequal crossing-over, producing a larger selective advantage than could be attained gradually by stepwise improvement of the parental enzyme. © 2021 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Nicole Joußen
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - David G Heckel
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
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14
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Perini CR, Tabuloc CA, Chiu JC, Zalom FG, Stacke RF, Bernardi O, Nelson DR, Guedes JC. Transcriptome Analysis of Pyrethroid-Resistant Chrysodeixis includens (Lepidoptera: Noctuidae) Reveals Overexpression of Metabolic Detoxification Genes. JOURNAL OF ECONOMIC ENTOMOLOGY 2021; 114:274-283. [PMID: 33137187 DOI: 10.1093/jee/toaa233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Indexed: 06/11/2023]
Abstract
Chrysodeixis includens (Walker, [1858]) is one of the most important defoliator of soybean in Brazil because of its extensive geographical distribution and high tolerance to insecticides compared with other species of caterpillars. Because of this, we conducted bioassays to evaluate the efficacy of pyrethroid λ-cyhalothrin on a C. includens resistant strain (MS) and a susceptible (LAB) laboratory strain. High throughput RNA sequencing (RNA-seq) of larval head and body tissues were performed to identify potential molecular mechanisms underlying pyrethroid resistance. Insecticide bioassays showed that MS larvae exhibit 28.9-fold resistance to pyrethroid λ-cyhalothrin relative to LAB larvae. RNA-seq identified evidence of metabolic resistance in the head and body tissues: 15 cytochrome P450 transcripts of Cyp6, Cyp9, Cyp4, Cyp304, Cyp307, Cyp337, Cyp321 families, 7 glutathione-S-transferase (Gst) genes, 7 α-esterase genes from intracellular and secreted catalytic classes, and 8 UDP-glucuronosyltransferase (Ugt) were overexpressed in MS as compared with LAB larvae. We also identified overexpression of GPCR genes (CiGPCR64-like and CiGPCRMth2) in the head tissue. To validate RNA-seq results, we performed RT-qPCR to assay selected metabolic genes and confirmed their expression profiles. Specifically, CiCYP9a101v1, CiCYP6ae149, CiCYP6ae106v2, CiGSTe13, CiCOE47, and CiUGT33F21 exhibited significant overexpression in resistant MS larvae. In summary, our findings detailed potential mechanisms of metabolic detoxification underlying pyrethroid resistance in C. includens.
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Affiliation(s)
- Clerison R Perini
- Department of Crop Protection, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Christine A Tabuloc
- Department of Entomology and Nematology, College of Agricultural and Environmental Sciences, University of California, Davis, CA
| | - Joanna C Chiu
- Department of Entomology and Nematology, College of Agricultural and Environmental Sciences, University of California, Davis, CA
| | - Frank G Zalom
- Department of Entomology and Nematology, College of Agricultural and Environmental Sciences, University of California, Davis, CA
| | - Regis F Stacke
- Department of Crop Protection, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Oderlei Bernardi
- Department of Crop Protection, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - David R Nelson
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee, Memphis, TN
| | - Jerson C Guedes
- Department of Crop Protection, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
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15
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Specht A, Sosa-Gómez DR, Rios DAM, Claudino VCM, Paula-Moraes SV, Malaquias JV, Silva FAM, Roque-Specht VF. Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Brazil: the Big Outbreak Monitored by Light Traps. NEOTROPICAL ENTOMOLOGY 2021; 50:53-67. [PMID: 33501635 DOI: 10.1007/s13744-020-00836-0] [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: 09/23/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
The first detection of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) in Brazil pointed to a gloomy future for South American agriculture in the 2012/2013 harvest, and insecticide sales increased exponentially during 2013 and 2014. However, after this outbreak, the population of this insect returned to manageable levels. This study documents data on H. armigera moth collection using light traps during the outbreak in two locations: (a) western region of the state of Bahia, including population levels of H. armigera and main noctuid pests during the big outbreak (February and March 2013); (b) Federal District, including monthly data for five growing seasons (July 2012-June 2017). During the outbreak, an average of 527.3 moths were collected per trap (cotton crop, March) in the western region of Bahia each night, while the maximum average in the Federal District was 75.4 moths (January). The number of moths decreased in the following growing seasons, and in October 2016, the maximum number was 2.8 moths per trap. Aspects related to the variations of H. armigera and Helicoverpa zea (Boddie) populations, including the study of phenology and relationship with climatic factors and Oceanic Niño Index, were analyzed and discussed. All aspects are approached to contribute to the management of lepidopteran pests, especially H. armigera, in the productive systems of the Brazilian Cerrado.
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16
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Bacillus thuringiensis Cry1Ab Domain III β-16 Is Involved in Binding to Prohibitin, Which Correlates with Toxicity against Helicoverpa armigera (Lepidoptera: Noctuidae). Appl Environ Microbiol 2021; 87:AEM.01930-20. [PMID: 33127814 DOI: 10.1128/aem.01930-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/24/2020] [Indexed: 01/09/2023] Open
Abstract
Helicoverpa armigera is a major insect pest of several crops worldwide. This insect is susceptible to some Bacillus thuringiensis (Bt) Cry insecticidal proteins expressed in transgenic crops or used in biopesticides. Previously, we identified H. armigera prohibitin (HaPHB) as a Cry1Ac-binding protein. Here, we further analyzed the potential role of PHB as a Cry toxin receptor in comparison to cadherin (CAD), well recognized as a Cry1Ac receptor. HaPHB-2 midgut protein and HaCAD toxin-binding region (TBR) fragment from H. armigera were expressed in Escherichia coli cells, and binding assays with different Cry1 toxins were performed. We demonstrated that Cry1Ab, Cry1Ac, and Cry1Fa toxins bound to HaPHB-2 in a manner similar to that seen with HaCAD-TBR. Different Cry1Ab mutant toxins located in domain II (Cry1AbF371A and Cry1AbG439D) or domain III (Cry1AbL511A and Cry1AbN514A), which were previously characterized and found to be affected in receptor binding, were analyzed regarding their binding interaction with HaPHB-2 and toxicity against H. armigera One β-16 mutant (Cry1AbN514A) showed increased binding to HaPHB-2 that correlated with 6-fold-higher toxicity against H. armigera, whereas the other β-16 mutant (Cry1AbL511A) was affected in binding to HaPHB-2 and lost toxicity against H. armigera Our data indicate that β-16 from domain III of Cry1Ab is involved in interactions with HaPHB-2 and in toxicity. This report identifies a region of Cry1Ab involved in binding to HaPHB-2 from a Lepidoptera insect, suggesting that this protein may participate as a novel receptor in the mechanism of action of the Cry1 toxins in H. armigera IMPORTANCE Helicoverpa armigera is a polyphagous pest that feeds on important crops worldwide. This insect pest is sensitive to different Cry1 toxins from Bacillus thuringiensis In this study, we analyzed the potential role of PHB-2 as a Cry1 toxin receptor in comparison to CAD. We show that different Cry1 toxins bound to HaPHB-2 and HaCAD-TBR similarly and identify β-16 from domain III of Cry1Ab as a binding region involved in the interaction with HaPHB-2 and in toxicity. This report characterized HaPHB-Cry1 binding interaction, providing novel insights into potential target sites for improving Cry1 toxicity against H. armigera.
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17
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Valencia-Montoya WA, Elfekih S, North HL, Meier JI, Warren IA, Tay WT, Gordon KHJ, Specht A, Paula-Moraes SV, Rane R, Walsh TK, Jiggins CD. Adaptive Introgression across Semipermeable Species Boundaries between Local Helicoverpa zea and Invasive Helicoverpa armigera Moths. Mol Biol Evol 2020; 37:2568-2583. [PMID: 32348505 PMCID: PMC7475041 DOI: 10.1093/molbev/msaa108] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Hybridization between invasive and native species has raised global concern, given the dramatic increase in species range shifts and pest outbreaks due to anthropogenic dispersal. Nevertheless, secondary contact between sister lineages of local and invasive species provides a natural laboratory to understand the factors that determine introgression and the maintenance or loss of species barriers. Here, we characterize the early evolutionary outcomes following secondary contact between invasive Helicoverpa armigera and native H. zea in Brazil. We carried out whole-genome resequencing of Helicoverpa moths from Brazil in two temporal samples: during the outbreak of H. armigera in 2013 and 2017. There is evidence for a burst of hybridization and widespread introgression from local H. zea into invasive H. armigera coinciding with H. armigera expansion in 2013. However, in H. armigera, the admixture proportion and the length of introgressed blocks were significantly reduced between 2013 and 2017, suggesting selection against admixture. In contrast to the genome-wide pattern, there was striking evidence for adaptive introgression of a single region from the invasive H. armigera into local H. zea, including an insecticide resistance allele that increased in frequency over time. In summary, despite extensive gene flow after secondary contact, the species boundaries are largely maintained except for the single introgressed region containing the insecticide-resistant locus. We document the worst-case scenario for an invasive species, in which there are now two pest species instead of one, and the native species has acquired resistance to pyrethroid insecticides through introgression.
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Affiliation(s)
- Wendy A Valencia-Montoya
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA
| | - Samia Elfekih
- CSIRO Health and Biosecurity, Australian Animal Health Laboratory, Geelong, VIC, Australia
- Bio21 Institute, University of Melbourne, Parkville, VIC, Australia
| | - Henry L North
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - Joana I Meier
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - Ian A Warren
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - Wee Tek Tay
- CSIRO Land and Water, Black Mountain Laboratories, Canberra, ACT, Australia
| | - Karl H J Gordon
- CSIRO Land and Water, Black Mountain Laboratories, Canberra, ACT, Australia
| | | | | | - Rahul Rane
- CSIRO Health and Biosecurity, Australian Animal Health Laboratory, Geelong, VIC, Australia
- Bio21 Institute, University of Melbourne, Parkville, VIC, Australia
| | - Tom K Walsh
- CSIRO Land and Water, Black Mountain Laboratories, Canberra, ACT, Australia
| | - Chris D Jiggins
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
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18
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Sousa NCM, Michereff Filho M, Silva PA, Torres JB. Determination of an Economic Injury Level for Old World Bollworm (Lepidoptera: Noctuidae) in Processing Tomato in Brazil. JOURNAL OF ECONOMIC ENTOMOLOGY 2020; 113:1881-1887. [PMID: 32405643 DOI: 10.1093/jee/toaa082] [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: 12/11/2019] [Indexed: 06/11/2023]
Abstract
Tomato plants host various herbivores, including the Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae), recently introduced into South and Central America. It is a harmful pest for tomato crops, damaging mainly the flowers and fruits. The assessment of losses and the establishment of economic injury level (EIL) and economic threshold (ET) are core steps toward establishing a control program. We determined losses caused by H. armigera on processing tomato and estimated EIL/ET values. Trials were run during two growing seasons using tomato plants caged in the field. The field cage experiment consisted of six densities of H. armigera second instar larvae (0, 1, 3, 6, 12, and 24 larvae per row meter) at two infestations periods spaced 15 d apart with the first infestation done 90 d after transplanting. The larvae were placed individually on the third upper fully developed leaf. The number of healthy and damaged fruits, size, and weight of the fruits were measured. Yield losses as a function of infestation of 1-24 larvae per row meter ranged from 4 to 34% and resulted in a yield reduction of 1.22-12.77 kg per row meter. The EIL ranged from 1.41 to 1.72 and from 2.11 to 2.58 larvae per row meter of plants in 2017 and 2018 cropping seasons, respectively. Helicoverpa armigera causes significant reduction of tomato yield. These EIL values will enable better control decision-making in processing tomato.
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Affiliation(s)
- Nayara C M Sousa
- Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, Recife, PE, Brazil
| | | | - Paloma A Silva
- Laboratório de Entomologia, Embrapa Hortaliças, Brasília, DF, Brazil
| | - Jorge B Torres
- Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, Recife, PE, Brazil
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19
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da Silva FR, Trujillo D, Bernardi O, Verle Rodrigues JC, Bailey WD, Gilligan TM, Carrillo D. Comparative Toxicity of Helicoverpa armigera and Helicoverpa zea (Lepidoptera: Noctuidae) to Selected Insecticides. INSECTS 2020; 11:E431. [PMID: 32664300 PMCID: PMC7412147 DOI: 10.3390/insects11070431] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/24/2020] [Accepted: 07/07/2020] [Indexed: 11/27/2022]
Abstract
Until recently, the Old World bollworm (OWB) Helicoverpa armigera (Hübner) and the corn earworm Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae) were geographically isolated. Both species are major pests of agricultural commodities that are known to develop insecticide resistance, and they now coexist in areas where H. armigera invaded the Americas. This is the first study to compare the susceptibility of the two species to conventional insecticides. The susceptibility of third instar H. armigera and H. zea larvae to indoxacarb, methomyl, spinetoram, and spinosad was determined using a diet-overlay bioassay in a quarantine laboratory in Puerto Rico. Mortality was assessed at 48 h after exposure for up to eight concentrations per insecticide. Spinetoram exhibited the highest acute toxicity against H. armigera, with a median lethal concentration (LC50) of 0.11 µg a.i./cm2, followed by indoxacarb and spinosad (0.17 µg a.i./cm2 for both) and methomyl (0.32 µg a.i./cm2). Spinetoram was also the most toxic to H. zea (LC50 of 0.08 µg a.i./cm2), followed by spinosad (0.17 µg a.i./cm2) and methomyl (0.18 µg a.i./cm2). Indoxacarb was the least toxic to H. zea, with an LC50 of 0.21 µg a.i./cm2. These findings could serve as a comparative reference for monitoring the susceptibility of H. armigera and H. zea to indoxacarb, methomyl, spinetoram, and spinosad in Puerto Rico, and may facilitate the detection of field-selected resistance for these two species and their potential hybrids in areas recently invaded by H. armigera.
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Affiliation(s)
- Fernando R. da Silva
- Tropical Research and Education Center, University of Florida, 18905 SW 280th, St. Homestead, FL 33031, USA;
- Center for Excellence in Quarantine & Invasive Species, University of Puerto Rico (UPR), San Juan, PR 00926-1118, USA; (D.T.); (J.C.V.R.)
| | - Dario Trujillo
- Center for Excellence in Quarantine & Invasive Species, University of Puerto Rico (UPR), San Juan, PR 00926-1118, USA; (D.T.); (J.C.V.R.)
| | - Oderlei Bernardi
- Department of Plant Protection, Federal University of Santa Maria, CCR-Building 42-Room 3233, Campus-Camobi, Santa Maria 9710590, RS, Brazil;
| | - Jose Carlos Verle Rodrigues
- Center for Excellence in Quarantine & Invasive Species, University of Puerto Rico (UPR), San Juan, PR 00926-1118, USA; (D.T.); (J.C.V.R.)
| | - Woodward D. Bailey
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, Science and Technology, Miami, FL 33158, USA;
| | - Todd M. Gilligan
- United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, Science and Technology, Fort Collins, CO 80526, USA;
| | - Daniel Carrillo
- Tropical Research and Education Center, University of Florida, 18905 SW 280th, St. Homestead, FL 33031, USA;
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20
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Cordeiro EMG, Pantoja-Gomez LM, de Paiva JB, Nascimento ARB, Omoto C, Michel AP, Correa AS. Hybridization and introgression between Helicoverpa armigera and H. zea: an adaptational bridge. BMC Evol Biol 2020; 20:61. [PMID: 32450817 PMCID: PMC7249340 DOI: 10.1186/s12862-020-01621-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 04/29/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Invasion of organisms into new ecosystems is increasingly common, due to the global trade in commodities. One of the most complex post-invasion scenarios occurs when an invasive species is related to a native pest, and even more so when they can hybridize and produce fertile progeny. The global pest Helicoverpa armigera was first detected in Brazil in 2013 and generated a wave of speculations about the possibility of hybridization with the native sister taxon Helicoverpa zea. In the present study, we used genome-wide single nucleotide polymorphisms from field-collected individuals to estimate hybridization between H. armigera and H. zea in different Brazilian agricultural landscapes. RESULTS The frequency of hybridization varied from 15 to 30% depending on the statistical analyses. These methods showed more congruence in estimating that hybrids contained approximately 10% mixed ancestry (i.e. introgression) from either species. Hybridization also varied considerably depending on the geographic locations where the sample was collected, forming a 'mosaic' hybrid zone where introgression may be facilitated by environmental and landscape variables. Both landscape composition and bioclimatic variables indicated that maize and soybean cropland are the main factors responsible for high levels of introgression in agricultural landscapes. The impact of multiple H. armigera incursions is reflected in the structured and inbred pattern of genetic diversity. CONCLUSIONS Our data showed that the landscape composition and bioclimatic variables influence the introgression rate between H. armigera and H. zea in agricultural areas. Continuous monitoring of the hybridization process in the field is necessary, since agricultural expansion, climatic fluctuations, changing composition of crop species and varieties, and dynamic planting seasons are some factors in South America that could cause a sudden alteration in the introgression rate between Helicoverpa species. Introgression between invasive and native pests can dramatically impact the evolution of host ranges and resistance management.
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Affiliation(s)
- Erick M G Cordeiro
- Department of Entomology and Acarology, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, São Paulo, 13418900, Brazil
| | - Laura M Pantoja-Gomez
- Department of Entomology and Acarology, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, São Paulo, 13418900, Brazil
| | - Julia B de Paiva
- Department of Entomology and Acarology, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, São Paulo, 13418900, Brazil
| | - Antônio R B Nascimento
- Department of Entomology and Acarology, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, São Paulo, 13418900, Brazil
- Department of Entomology & The Center for Applied Plant Sciences, Ohio Agricultural Research and Development Center, Thorne Hall, The Ohio State University, 1680 Madison Ave, Wooster, OH, 44691, USA
| | - Celso Omoto
- Department of Entomology and Acarology, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, São Paulo, 13418900, Brazil
| | - Andrew P Michel
- Department of Entomology & The Center for Applied Plant Sciences, Ohio Agricultural Research and Development Center, Thorne Hall, The Ohio State University, 1680 Madison Ave, Wooster, OH, 44691, USA
| | - Alberto S Correa
- Department of Entomology and Acarology, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, São Paulo, 13418900, Brazil.
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21
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Coelho M, Godoy AF, Baptista YA, Bentivenha JPF, Lourenção AL, Baldin ELL, Catchot AL. Assessing Soybean Genotypes for Resistance to Helicoverpa armigera (Lepidoptera: Noctuidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2020; 113:471-481. [PMID: 31618434 DOI: 10.1093/jee/toz269] [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: 03/28/2019] [Indexed: 06/10/2023]
Abstract
Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) is an important pest capable of colonizing several species of cultivated plants, including soybean [Glycine max (L.) Merrill]. The primary management strategy for this insect is chemical control and adoption of Bt plants. However, alternative environmentally friendly strategies should be investigated and adopted as available for sustainable management of this insect pest. One potential underutilized method for insect control is plant resistance. The objective of this study was to categorize resistance (antixenosis and antibiosis) of 22 soybean genotypes on H. armigera in a laboratory setting. A preliminary experiment was conducted using soybean leaves and pods to determine the most promising genotypes for resistance. For each selected genotype, we collected biological parameters, leaf intake, and performed confinement tests. The genotypes PI 227687, PI 274453, PI 274454, PI 229358, PI 171451, 'IAC 17', and 'IAC 19' expressed resistance against H. armigera. Each genotype lowered larval survivorship. The genotypes PI 229358, PI 227687, PI 274453, and PI 274454 expressed resistance by prolonging larval development and reducing fifth-instar larvae weight. 'IAC 19' reduced leaf consumption and lowered the weight of fifth-instar larvae. Antixenosis was found in genotypes PI 227687, PI 274454, and 'IAC 19'. These genotypes might be used in breeding programs focusing on soybean resistance to lepidopterans.
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Affiliation(s)
- M Coelho
- Department of Crop Protection, School of Agricultural Sciences, São Paulo State University, Botucatu SP, Brazil
| | - A F Godoy
- Department of Crop Protection, School of Agricultural Sciences, São Paulo State University, Botucatu SP, Brazil
| | - Y A Baptista
- Department of Crop Protection, School of Agricultural Sciences, São Paulo State University, Botucatu SP, Brazil
| | - J P F Bentivenha
- Department of Entomology, Phytopathology and Agricultural Zoology, Luiz de Queiroz College of Agriculture, São Paulo State University, Piracicaba, SP, Brazil
| | - A L Lourenção
- Center of Phytosanitary, Campinas Agronomic Institute, Campinas, SP, Brazil
| | - E L L Baldin
- Department of Crop Protection, School of Agricultural Sciences, São Paulo State University, Botucatu SP, Brazil
| | - A L Catchot
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS
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22
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Arnemann JA, Roxburgh S, Walsh T, Guedes J, Gordon K, Smagghe G, Tay WT. Multiple incursion pathways for Helicoverpa armigera in Brazil show its genetic diversity spreading in a connected world. Sci Rep 2019; 9:19380. [PMID: 31852963 PMCID: PMC6920452 DOI: 10.1038/s41598-019-55919-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 11/29/2019] [Indexed: 02/06/2023] Open
Abstract
The Old World cotton bollworm Helicoverpa armigera was first detected in Brazil with subsequent reports from Paraguay, Argentina, Bolivia, and Uruguay. This pattern suggests that the H. armigera spread across the South American continent following incursions into northern/central Brazil, however, this hypothesis has not been tested. Here we compare northern and central Brazilian H. armigera mtDNA COI haplotypes with those from southern Brazil, Uruguay, Argentina, and Paraguay. We infer spatial genetic and gene flow patterns of this dispersive pest in the agricultural landscape of South America. We show that the spatial distribution of H. armigera mtDNA haplotypes and its inferred gene flow patterns in the southwestern region of South America exhibited signatures inconsistent with a single incursion hypothesis. Simulations on spatial distribution patterns show that the detection of rare and/or the absence of dominant mtDNA haplotypes in southern H. armigera populations are inconsistent with genetic signatures observed in northern and central Brazil. Incursions of H. armigera into the New World are therefore likely to have involved independent events in northern/central Brazil, and southern Brazil/Uruguay-Argentina-Paraguay. This study demonstrates the significant biosecurity challenges facing the South American continent, and highlights alternate pathways for introductions of alien species into the New World.
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Affiliation(s)
- Jonas Andre Arnemann
- CSIRO, Black Mountain Laboratories, Clunies Ross Street, ACT 2601, Canberra, Australia.
- Department of Crop Protection, Universidade Federal de Santa Maria, Santa Maria, Brazil.
- Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.
| | - Stephen Roxburgh
- CSIRO, Black Mountain Laboratories, Clunies Ross Street, ACT 2601, Canberra, Australia
| | - Tom Walsh
- CSIRO, Black Mountain Laboratories, Clunies Ross Street, ACT 2601, Canberra, Australia
| | - Jerson Guedes
- Department of Crop Protection, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Karl Gordon
- CSIRO, Black Mountain Laboratories, Clunies Ross Street, ACT 2601, Canberra, Australia
| | - Guy Smagghe
- Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Wee Tek Tay
- CSIRO, Black Mountain Laboratories, Clunies Ross Street, ACT 2601, Canberra, Australia
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23
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Pereira FP, Reigada C, Diniz AJF, Parra JRP. Potential of Two Trichogrammatidae species for Helicoverpa armigera control. NEOTROPICAL ENTOMOLOGY 2019; 48:966-973. [PMID: 31721083 DOI: 10.1007/s13744-019-00730-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
Helicoverpa armigera (Hübner) has attacked several economically important crops since it was first reported in Brazil in 2013. Because insecticides have been used intensively to control H. armigera, resistant populations have been detected more frequently. One alternative to insecticides is the use of biological control with egg parasitoids from the family Trichogrammatidae (Hymenoptera). The present study evaluated the use of different species and strains of these parasitoids to control H. armigera in soybean. Five strains of Trichogramma pretiosum (Riley): RV (Rio Verde, Goiás, Brazil), SO (Sorriso, Mato Grosso, Brazil), 47A (Irvine, CA, USA), PR (Colombo, Paraná, Brazil), and AN (Anhumas, São Paulo, Brazil), and Trichogrammatoidea annulata (De Santis) denominated TR, from Anhumas, were used. The following parasitoid biological parameters were evaluated: parasitism rates (%), offspring viability (%) number of parasitoids emerged per egg, egg-adult duration (days), female longevity, and offspring sex ratio. Strain RV of T. pretiosum from central Brazil performed best.
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Affiliation(s)
- F P Pereira
- Depto de Entomologia e Acarologia, Escola Superior de Agricultura Luiz de Queiroz, Univ de São Paulo, Piracicaba, São Paulo, Brazil.
| | - C Reigada
- Depto de Ecologia e Biologia Evolutiva, Univ Federal de São Carlos, São Carlos, São Paulo, Brazil
| | - A J F Diniz
- Depto de Entomologia e Acarologia, Escola Superior de Agricultura Luiz de Queiroz, Univ de São Paulo, Piracicaba, São Paulo, Brazil
| | - J R P Parra
- Depto de Entomologia e Acarologia, Escola Superior de Agricultura Luiz de Queiroz, Univ de São Paulo, Piracicaba, São Paulo, Brazil
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24
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Gonçalves RM, Mastrangelo T, Rodrigues JCV, Paulo DF, Omoto C, Corrêa AS, de Azeredo‐Espin AML. Invasion origin, rapid population expansion, and the lack of genetic structure of cotton bollworm ( Helicoverpa armigera) in the Americas. Ecol Evol 2019; 9:7378-7401. [PMID: 31346410 PMCID: PMC6635935 DOI: 10.1002/ece3.5123] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 03/06/2019] [Accepted: 03/08/2019] [Indexed: 12/20/2022] Open
Abstract
In 2013, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) was officially declared as present in Brazil and, after two years, the species was detected in the Caribbean and North America. Information on genetic features and accurate distribution of pests is the basis for agricultural protection policies. Furthermore, such knowledge is imperative to develop control strategies, understand the geographical range, and genetic patterns of this species in the Americas. Here, we carried out the widest sampling of H. armigera in the South American continent and Puerto Rico, after we estimated the diversity, demographic parameters, and genetic structure. The Internal Transcribed Spacer 1 (ITS1) nuclear marker was used to investigate the presence of putative hybrids between H. armigera and H. zea, and they were observed at a frequency of 1.5%. An ABC analysis, based in COI gene fragment, suggested Europe as the origin of South America specimens of H. armigeraand following a movement northward through the Caribbean. Three mtDNA genes and three nDNA markers revealed high genetic diversity distributed without the defined population structure of H. armigera in South America. Most of the genetic variation is within populations with a multidirectional expansion of H. armigera among morphoclimatic regions. High genetic diversity, rapid population expansion, and hybridization have implications for pest management since they suggest that adaptive alleles are spread through wide areas in South America that favor rapid local adaptation of H. armigera to new and disturbed environments (e.g., in agricultural areas).
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Affiliation(s)
- Rogério Martins Gonçalves
- Department of Genetics, Evolution and Bioagents, Institute of BiologyState University of Campinas (UNICAMP)CampinasBrazil
- Graduate Program in Genetics and Molecular Biology, Institute of BiologyState University of Campinas (UNICAMP)CampinasBrazil
| | - Thiago Mastrangelo
- Centre for Nuclear Energy in AgricultureUniversity of São Paulo (USP)PiracicabaBrazil
| | | | - Daniel Fernando Paulo
- Department of Genetics, Evolution and Bioagents, Institute of BiologyState University of Campinas (UNICAMP)CampinasBrazil
- Graduate Program in Genetics and Molecular Biology, Institute of BiologyState University of Campinas (UNICAMP)CampinasBrazil
| | - Celso Omoto
- Department of Entomology and AcarologyLuiz de Queiroz College of Agriculture, University of São Paulo (USP/ESALQ)PiracicabaBrazil
| | - Alberto Soares Corrêa
- Department of Entomology and AcarologyLuiz de Queiroz College of Agriculture, University of São Paulo (USP/ESALQ)PiracicabaBrazil
| | - Ana Maria Lima de Azeredo‐Espin
- Department of Genetics, Evolution and Bioagents, Institute of BiologyState University of Campinas (UNICAMP)CampinasBrazil
- Graduate Program in Genetics and Molecular Biology, Institute of BiologyState University of Campinas (UNICAMP)CampinasBrazil
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25
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Tossou E, Tepa-Yotto G, Kpindou OKD, Sandeu R, Datinon B, Zeukeng F, Akoton R, Tchigossou GM, Djègbè I, Vontas J, Martin T, Wondji C, Tamò M, Bokonon-Ganta AH, Djouaka R. Susceptibility Profiles of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) to Deltamethrin Reveal a Contrast between the Northern and the Southern Benin. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:E1882. [PMID: 31142024 PMCID: PMC6603559 DOI: 10.3390/ijerph16111882] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/15/2019] [Accepted: 05/03/2019] [Indexed: 12/02/2022]
Abstract
Helicoverpa armigera is an indigenous species in Africa and has been reported in the destruction of several crops in Benin. Management of H. armigera pest is mainly focused on the use of synthetic pyrethroids, which may contribute to resistance selection. This study aimed to screen the susceptibility pattern of field populations of H. armigera to deltamethrin in Benin. Relevant information on the type of pesticides used by farmers were gathered through surveys. Collected samples of Helicoverpa (F0) were reared to F1. F0 were subjected to morphological speciation followed by a confirmation using restriction fragment length polymorphism coupled with a polymerase chain reaction (RFLP-PCR). F1 (larvae) were used for insecticide susceptibility with deltamethrin alone and in the presence of the P450 inhibitor Piperonyl Butoxide (PBO). Deltamethrin and lambda-cyhalothrin were the most used pyrethroids in tomato and cotton farms respectively. All field-sampled Helicoverpa were found to be H. armigera. Susceptibility assays of H. armigera to deltamethrin revealed a high resistance pattern in cowpea (resistance factor (RF) = 2340), cotton (RF varying from 12 to 516) and tomato (RF=85) farms which is a concern for the control of this major polyphagous agricultural pest. There was a significant increase of mortality when deltamethrin insecticide was combined with piperonyl butoxide (PBO), suggesting the possible involvement of detoxification enzymes such as oxidase. This study highlights the presence of P450 induced metabolic resistance in H. armigera populations from diverse cropping systems in Benin. The recorded high levels of deltamethrin resistance in H. armigera is a concern for the control of this major agricultural pest in Benin as the country is currently embarking into economical expansion of cotton, vegetables and grain-legumes cropping systems.
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Affiliation(s)
- Eric Tossou
- International Institute of Tropical Agriculture (IITA), 08 P.O. Box 0932 Tri-Postal Cotonou, Benin.
- Direction of Plant Production, University of Abomey-Calavi, P.O. Box 526Abomey-Calavi, Benin.
| | - Ghislain Tepa-Yotto
- International Institute of Tropical Agriculture (IITA), 08 P.O. Box 0932 Tri-Postal Cotonou, Benin.
- School of Crop and Seed Production, National University of Agriculture (UNA-Benin), P.O. Box 43 Kétou, Benin.
| | - Ouorou K Douro Kpindou
- International Institute of Tropical Agriculture (IITA), 08 P.O. Box 0932 Tri-Postal Cotonou, Benin.
| | - Ruth Sandeu
- Faculty of Science, Department of Biochemistry, University of Yaoundé I, P.O. Box 812 Yaoundé, Cameroon.
| | - Benjamin Datinon
- International Institute of Tropical Agriculture (IITA), 08 P.O. Box 0932 Tri-Postal Cotonou, Benin.
| | - Francis Zeukeng
- Faculty of Science, Department of Biochemistry, University of Yaoundé I, P.O. Box 812 Yaoundé, Cameroon.
| | - Romaric Akoton
- International Institute of Tropical Agriculture (IITA), 08 P.O. Box 0932 Tri-Postal Cotonou, Benin.
- Direction of Plant Production, University of Abomey-Calavi, P.O. Box 526Abomey-Calavi, Benin.
| | - Généviève M Tchigossou
- International Institute of Tropical Agriculture (IITA), 08 P.O. Box 0932 Tri-Postal Cotonou, Benin.
- Direction of Plant Production, University of Abomey-Calavi, P.O. Box 526Abomey-Calavi, Benin.
| | - Innocent Djègbè
- Life And Earth Sciences, National University of Science, Technology, Engineering and Mathematics, P.O. Box 2282 Abomey, Benin.
| | - John Vontas
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, N Plastira 100, 70013 Crete, Greece.
- Pesticide Science, Agricultural University of Athens, Ieraodos 75, 11855 Athens, Greece.
| | - Thibaud Martin
- Cirad UR Hortsys, Université Montpellier, Campus international de Baillarguet, 34 398 Montpellier, France.
- Biosciences Unit, University Houphouet Boigny, Cocody 01 BP 6483Abidjan, Côte d'Ivoire.
| | - Charles Wondji
- Vector group, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK.
| | - Manuele Tamò
- International Institute of Tropical Agriculture (IITA), 08 P.O. Box 0932 Tri-Postal Cotonou, Benin.
| | - Aimé H Bokonon-Ganta
- Direction of Plant Production, University of Abomey-Calavi, P.O. Box 526Abomey-Calavi, Benin.
| | - Rousseau Djouaka
- International Institute of Tropical Agriculture (IITA), 08 P.O. Box 0932 Tri-Postal Cotonou, Benin.
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Ferronato P, Woch AL, Soares PL, Bernardi D, Botton M, Andreazza F, Oliveira EE, Corrêa AS. A Phylogeographic Approach to the Drosophila suzukii (Diptera: Drosophilidae) Invasion in Brazil. JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:425-433. [PMID: 30383249 DOI: 10.1093/jee/toy321] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Indexed: 06/08/2023]
Abstract
Biological invasions have reached large parts of the globe, due to human actions across the planet. Drosophila suzukii (Matsumura, 1931) is a globally invasive species, always associated with enormous and costly damage to agricultural crops. Native to Southeast Asia, D. suzukii recently (i.e., 2013) invaded and is dispersing through South America. Here, we used a phylogeographic approach based on the cytochrome c oxidase subunit I gene fragment to explore the invasion dynamics of D. suzukii populations in Brazil. We identified five haplotypes and moderate genetic diversity in Brazilian populations, which are undergoing demographic and spatial expansion. The analyses of molecular variance indicated a high genetic structure among the populations, which is partially explained by their morphoclimatic origin and invasion history. Drosophila suzukii expanded from southern to southeastern Brazil, aided by human-mediated transport of fruits from region to region. The sharing of haplotypes among Brazilian and other invaded regions of the world suggests a single invasion event of D. suzukii in Brazil, originating from previously invaded areas (e.g., North America and Europe). The rapid geographic dispersal and wide variety of fruits attacked by of D. suzukii require immediate implementation of control strategies (legal and phytosanitary) to manage this pest in Brazil.
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Affiliation(s)
- Petra Ferronato
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, SP, Brazil
| | - Ana Luiza Woch
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, SP, Brazil
| | - Patricia Lima Soares
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, SP, Brazil
| | - Daniel Bernardi
- Department of Plant Health, Federal University of Pelotas, Capão do Leão, RS, Brazil
| | - Marcos Botton
- Embrapa Grape and Wine, Bento Gonçalves, Rio Grande do Sul, RS, Brazil
| | - Felipe Andreazza
- Department of Entomology, Federal University of Viçosa, Viçosa, MG, Brazil
| | - Eugênio E Oliveira
- Department of Entomology, Federal University of Viçosa, Viçosa, MG, Brazil
| | - Alberto Soares Corrêa
- Department of Entomology and Acarology, University of Sao Paulo, Luiz de Queiroz College of Agriculture (USP/ESALQ), Piracicaba, SP, Brazil
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27
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Choi BH, Hur JH, Heckel DG, Kim J, Koh YH. Development of a highly accurate and sensitive diagnostic tool for pyrethroid-resistant chimeric P450 CYP337B3 of Helicoverpa armigera using loop-mediated isothermal amplification. ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2018; 99:e21504. [PMID: 30218552 DOI: 10.1002/arch.21504] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Recent studies have shown that pyrethroid resistance in the cotton bollworm (CBW) Helicoverpa armigera is conferred by the generation of a chimeric CYP337B3 gene, which resulted from unequal crossing-over between the CYP337B1 and CYP337B2 genes. In this study, we developed a diagnostic protocol based on the loop-mediated isothermal amplification (LAMP) assay for the detection of chimeric CYP337B3. The CYP337B3 LAMP assay utilized six primers and generated strong fluorescence signals visible to the naked eye under normal or ultraviolet light. The primers were designed based on CYP337B3v1 (JQ995292), the major allele detected in Australia. The detection limit of this LAMP assay was 10 fg genomic DNA in a 25-µl reaction mixture. Compared with CYP337B2v1, the Korean CYP337B3v2 allele had two nucleotide mismatches within the amplifying regions of this LAMP assay; therefore, we confirmed that polymerase chain reaction-synthesized CYP337B3v2 was well amplified using this LAMP assay. In addition, we determined that the presence of CYP337B3 from H. armigera collected by pheromone traps from Korean fields could be confirmed using this LAMP assay. This assay could detect CYP337B3 even in heterozygotes, which is relevant because CYP337B3 is dominant, and heterozygotes are pyrethroid resistant. Therefore, the newly developed CYP337B3 LAMP assay could detect the presence of pyrethroid resistance in H. armigera that were captured by pheromone traps during the early season and provide information on whether pyrethroids could be used to control H. armigera.
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Affiliation(s)
- Bo Hey Choi
- Department of Biomedical Gerontology, Hallym University Graduate School, Chuncheon, Korea
- lsong Institute of Life Science, Hallym University, Anyang, Korea
| | - Joon Haeng Hur
- Department of Biomedical Gerontology, Hallym University Graduate School, Chuncheon, Korea
- lsong Institute of Life Science, Hallym University, Anyang, Korea
| | - David G Heckel
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Juil Kim
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
- Highland Agriculture Research Institute, NICS, RDA, Pyeongchang, Korea
| | - Young Ho Koh
- Department of Biomedical Gerontology, Hallym University Graduate School, Chuncheon, Korea
- lsong Institute of Life Science, Hallym University, Anyang, Korea
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