1
|
Shibata T, Shimoda M, Kobayashi T, Arai H, Owashi Y, Uehara T. High-quality genome of the zoophytophagous stink bug, Nesidiocoris tenuis, informs their food habit adaptation. G3 (BETHESDA, MD.) 2024; 14:jkad289. [PMID: 38113473 PMCID: PMC10849345 DOI: 10.1093/g3journal/jkad289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 09/21/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023]
Abstract
The zoophytophagous stink bug, Nesidiocoris tenuis, is a promising natural enemy of micro-pests such as whiteflies and thrips. This bug possesses both phytophagous and entomophagous food habits, enabling it to obtain nutrition from both plants and insects. This trait allows us to maintain its population density in agricultural fields by introducing insectary plants, even when the pest prey density is extremely low. However, if the bugs' population becomes too dense, they can sometimes damage crop plants. This dual character seems to arise from the food preferences and chemosensation of this predator. To understand the genomic landscape of N. tenuis, we examined the whole genome sequence of a commercially available Japanese strain. We used long-read sequencing and Hi-C analysis to assemble the genome at the chromosomal level. We then conducted a comparative analysis of the genome with previously reported genomes of phytophagous and hematophagous stink bugs to focus on the genetic factors contributing to this species' herbivorous and carnivorous tendencies. Our findings suggest that the gustatory gene set plays a pivotal role in adapting to food habits, making it a promising target for selective breeding. Furthermore, we identified the whole genomes of microorganisms symbiotic with this species through genomic analysis. We believe that our results shed light on the food habit adaptations of N. tenuis and will accelerate breeding efforts based on new breeding techniques for natural enemy insects, including genomics and genome editing.
Collapse
Affiliation(s)
- Tomofumi Shibata
- Division of Insect Advanced Technology, Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki 305-8634, Japan
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Masami Shimoda
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Tetsuya Kobayashi
- Division of Insect Advanced Technology, Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki 305-8634, Japan
| | - Hiroshi Arai
- Division of Insect Advanced Technology, Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki 305-8634, Japan
| | - Yuta Owashi
- Division of Insect Advanced Technology, Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki 305-8634, Japan
| | - Takuya Uehara
- Division of Insect Advanced Technology, Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki 305-8634, Japan
| |
Collapse
|
2
|
Topical Collection: Natural Enemies and Biological Control of Plant Pests. INSECTS 2022; 13:insects13050421. [PMID: 35621757 PMCID: PMC9144977 DOI: 10.3390/insects13050421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 12/10/2022]
Abstract
Natural enemies have an extensive history as biological control agents against crop pests worldwide [...]
Collapse
|
3
|
De Schutter K, Taning CNT, Van Daele L, Van Damme EJM, Dubruel P, Smagghe G. RNAi-Based Biocontrol Products: Market Status, Regulatory Aspects, and Risk Assessment. FRONTIERS IN INSECT SCIENCE 2022; 1:818037. [PMID: 38468882 PMCID: PMC10926433 DOI: 10.3389/finsc.2021.818037] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/14/2021] [Indexed: 03/13/2024]
Affiliation(s)
- Kristof De Schutter
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Clauvis Nji Tizi Taning
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Lenny Van Daele
- Polymer Chemistry and Biomaterials Group, Department of Organic and Macromolecular Chemistry, Center of Macromolecular Chemistry, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Els J. M. Van Damme
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Peter Dubruel
- Polymer Chemistry and Biomaterials Group, Department of Organic and Macromolecular Chemistry, Center of Macromolecular Chemistry, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Guy Smagghe
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| |
Collapse
|
4
|
Ramkumar G, Asokan R, Prasannakumar NR, Kariyanna B, Karthi S, Alwahibi MS, Elshikh MS, Abdel-Megeed A, Ghaith A, Senthil-Nathan S, Kalaivani K, Hunter WB, Krutmuang P. RNA Interference Suppression of v-ATPase B and Juvenile Hormone Binding Protein Genes Through Topically Applied dsRNA on Tomato Leaves: Developing Biopesticides to Control the South American Pinworm, Tuta absoluta (Lepidoptera: Gelechiidae). Front Physiol 2021; 12:742871. [PMID: 34867448 PMCID: PMC8637209 DOI: 10.3389/fphys.2021.742871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/20/2021] [Indexed: 11/23/2022] Open
Abstract
The South American pinworm Tuta absoluta (Meyrick) (Family: Gelechiidae) is one of the most devastating lepidopteran pests in the developing countries of South America, Africa, and Asia. This pest is classified as the most serious threat for tomato production worldwide. In the present study, we analyzed RNAi-mediated control through exogenously applied dsRNA delivery on tomato. The dsRNA treatments were made to target the juvenile hormone binding protein and the v-ATPase B. Both mRNA targets were cloned, validated by sequencing, and used to produce each dsRNA. After treatments the relative transcript expression was analyzed using qRTPCR to assess to efficacy of RNAi. A leaf-dip assay was used to provide late 2nd instar larvae three feeding access periods: 24, 48, and 72 h, to evaluate the effect of gene silencing of each target. Larvae were fed tomato leaves coated with five different RNAi concentrations (10, 20, 30, 40, and 50 micrograms/centimeter-squared), that suppressed two genes (juvenile hormone protein, JHBP, and vacuolar-type adenosine triphosphatase enzyme, v-ATPase). Treatments with dsRNA showed a significant increase in mortality at 24, 48, and 72 h after ingestion (P < 0.01, α = 0.05), along with reduced leaf damage, and increased feeding deterrence. The results suggest that these two RNAi products may provide a suitable treatment for control of this and other lepidopteran pests.
Collapse
Affiliation(s)
- Govindaraju Ramkumar
- Division of Biotechnology, ICAR-Indian Institute of Horticultural Research (IIHR), Bengaluru, India
| | - Ramasamy Asokan
- Division of Biotechnology, ICAR-Indian Institute of Horticultural Research (IIHR), Bengaluru, India
| | - N R Prasannakumar
- Division of Entomology and Nematology, ICAR-Indian Institute of Horticultural Research (IIHR), Bengaluru, India
| | - B Kariyanna
- Division of Biotechnology, ICAR-Indian Institute of Horticultural Research (IIHR), Bengaluru, India
| | - Sengodan Karthi
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Center for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | - Mona S Alwahibi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed Soliman Elshikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed Abdel-Megeed
- Department of Plant Protection, Faculty of Agriculture Saba Basha, Alexandria University, Alexandria, Egypt
| | - Aml Ghaith
- Department of Zoology, Faculty of Science, Derna University, Derna, Libya
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Center for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Tirunelveli, India
| | - Kandaswamy Kalaivani
- Post Graduate and Research Center, Department of Zoology, Sri Parasakthi College for Women, Tirunelveli, India
| | - Wayne Brian Hunter
- U.S. Horticultural Research Laboratory, United States Department of Agriculture, Agricultural Research Service, Fort Pierce, FL, United States
| | - Patcharin Krutmuang
- Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand.,Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai, Thailand
| |
Collapse
|
5
|
Hou N, Zhou Z, Chen Y, Tian J, Zhang Y, Liu Z. RNA interference in Pardosa pseudoannulata, an important predatory enemy against several insect pests, through ingestion of dsRNA-expressing Escherichia coli. INSECT MOLECULAR BIOLOGY 2021; 30:624-631. [PMID: 34410024 DOI: 10.1111/imb.12731] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/11/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
RNA interference is an important technology for gene functional research in many organisms. The pond wolf spider (Pardosa pseudoannulata) is an important natural enemy of rice field pests. To facilitate large-scale gene functional research in this spider species and others, we developed an RNA interference (RNAi) method via ingestion of bacteria expressing dsRNA. The dsRNA targeting a cytochrome P450 monooxygenase (cyp41g2) was expressed in Escherichia coli HT115 (DE3). And then the bacterial suspension was fed to 14-20 days old spiderlings. The mRNA abundance of the target gene was significantly reduced after 3-day's ingestion of bacteria expressing dsRNA, and between day 5 and 7, RNAi efficiency remained stable. Thus, we selected 5 days as the optimum interference time. Furthermore, the bacteria resuspension containing 20 ng/μl dsRNA was selected as the optimum concentration. To evaluate the applicability of this method, three other genes with different tissue expression pattern were also selected as targets. And the mRNA abundance of all the four target genes was significantly reduced with RNAi efficiency between 66.0% and up to 86.9%. The results demonstrated that the oral delivery of bacteria expressing dsRNA would be an effective RNAi method for the gene functional study in P. pseudoannulata.
Collapse
Affiliation(s)
- N Hou
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Z Zhou
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Y Chen
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - J Tian
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | - Y Zhang
- Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), College of Plant Protection, Nanjing Agricultural University, Nanjing, China
| | | |
Collapse
|