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Walt HK, King JG, Towles TB, Ahn SJ, Hoffmann FG. Comparative Genomics and the Salivary Transcriptome of the Redbanded Stink Bug Shed Light on Its High Damage Potential to Soybean. Genome Biol Evol 2024; 16:evae121. [PMID: 38864488 PMCID: PMC11226756 DOI: 10.1093/gbe/evae121] [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: 12/15/2023] [Revised: 05/28/2024] [Accepted: 06/05/2024] [Indexed: 06/13/2024] Open
Abstract
The redbanded stink bug, Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae), is a significant soybean pest in the Americas, which inflicts more physical damage on soybean than other native stink bugs. Studies suggest that its heightened impact is attributed to the aggressive digestive properties of its saliva. Despite its agricultural importance, the factors driving its greater ability to degrade plant tissues have remained unexplored in a genomic evolutionary context. In this study, we hypothesized that lineage-specific gene family expansions have increased the copy number of digestive genes expressed in the salivary glands. To investigate this, we annotated a previously published genome assembly of the redbanded stink bug, performed a comparative genomic analysis on 11 hemipteran species, and reconstructed patterns of gene duplication, gain, and loss in the redbanded stink bug. We also performed RNA-seq on the redbanded stink bug's salivary tissues, along with the rest of the body without salivary glands. We identified hundreds of differentially expressed salivary genes, including a subset lost in other stink bug lineages, but retained and expressed in the redbanded stink bug's salivary glands. These genes were significantly enriched with protein families involved in proteolysis, potentially explaining the redbanded stink bug's heightened damage to soybeans. Contrary to our hypothesis, we found no support for an enrichment of duplicated digestive genes that are also differentially expressed in the salivary glands of the redbanded stink bug. Nonetheless, these results provide insight into the evolution of this important crop pest, establishing a link between its genomic history and its agriculturally important physiology.
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Affiliation(s)
- Hunter K Walt
- Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA
| | - Jonas G King
- Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA
| | - Tyler B Towles
- Macon Ridge Research Station, Louisiana State University, Winnsboro, LA 71295, USA
| | - Seung-Joon Ahn
- Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA
| | - Federico G Hoffmann
- Department of Biochemistry, Molecular Biology, Entomology, and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA
- Institute for Genomics, Biocomputing and Biotechnology, Mississippi State University, Mississippi State, MS 39762, USA
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Rodrigues LM, Garcia AG, Parra JRP. Ecological zoning of Euschistus heros in Brazil based on the net reproductive rate at different temperatures and relative-humidity levels. JOURNAL OF ECONOMIC ENTOMOLOGY 2023; 116:1178-1184. [PMID: 37329565 DOI: 10.1093/jee/toad115] [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: 12/29/2022] [Revised: 05/15/2023] [Accepted: 05/30/2023] [Indexed: 06/19/2023]
Abstract
The Neotropical brown stink bug, Euschistus heros (Fabricius, 1798) (Hemiptera: Pentatomidae), is one of the major insect pests in soybean crops, causing severe damage; however, some aspects of its biology that are essential for management remain unknown. To aid in the management of E. heros, the present study investigated the fertility life table of this species at 7 temperatures (18, 20, 22, 25, 28, 30, and 32 ± 1 °C) and 4 relative-humidity levels (30, 50, 70, and 90 ± 10%). Based on the net reproductive rate, R0, we developed an ecological zoning for this pest in Brazil, to identify climatically favorable areas for population growth. Our results indicated that the most favorable range is between 25 and 28 °C and above 70% RH. The ecological zoning indicated that farmers should be more concerned in the northern and Midwest regions, which include the state of Mato Grosso, the largest soybean and corn producer in Brazil. These results provide valuable information, indicating the hotspots most likely to be attacked by the Neotropical brown stink bug.
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Affiliation(s)
- Lucas Maniero Rodrigues
- ESALQ/USP, Insect Biology Laboratory, Avenida Pádua Dias, 11, Piracicaba, São Paulo 13418900, Brazil
| | - Adriano Gomes Garcia
- ESALQ/USP, Insect Biology Laboratory, Avenida Pádua Dias, 11, Piracicaba, São Paulo 13418900, Brazil
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Chen J, Jiang K, Wang S, Li Y, Zhang Y, Tang Z, Bu W. Climate change impacts on the potential worldwide distribution of the soybean pest, Piezodorus guildinii (Hemiptera: Pentatomidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2023:7140309. [PMID: 37094809 DOI: 10.1093/jee/toad058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 03/07/2023] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
The redbanded stink bug, Piezodorus guildinii (Westwood, 1837), is a highly destructive soybean pest native to the Neotropical Region. In the past 60 yr, P. guildinii has been observed to expand its distribution in North and South America, causing significant soybean yield losses. In order to predict the future distribution direction of P. guildinii and create an effective pest control strategy, we projected the potential global distribution of P. guildinii using 2 different emission scenarios, Shared Socioeconomic Pathways 126 and 585, and 3 Earth system models, with the maximum entropy niche model (MaxEnt). Then, the predicted distribution areas of P. guildinii were jointly analyzed with the main soybean-producing areas to assess the impact for different soybean region. Our results showed that temperature is the main environmental factor limiting the distribution of P. guildinii. Under present climate conditions, all continents except Antarctica have suitable habitat for P. guildinii. These suitable habitats overlap with approximately 45.11% of the total global cultivated soybean areas. Moreover, P. guildinii was predicted to expand its range in the future, particularly into higher latitudes in the Northern hemisphere. Countries, in particular the United States, where soybean is widely available, would face a management challenge under global warming. In addition, China and India are also high-risk countries that may be invaded and should take strict quarantine measures. The maps of projected distribution produced in this study may prove useful in the future management of P. guildinii and the containment of its disruptive effects.
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Affiliation(s)
- Juhong Chen
- Institute of Entomology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Kun Jiang
- Institute of Entomology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Shujing Wang
- Institute of Entomology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yanfei Li
- Institute of Entomology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Yaoyao Zhang
- Institute of Entomology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Zechen Tang
- Institute of Entomology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Wenjun Bu
- Institute of Entomology, College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China
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Saha S, Allen KC, Mueller LA, Reddy GVP, Perera OP. Chromosome length genome assembly of the redbanded stink bug, Piezodorus guildinii (Westwood). BMC Res Notes 2022; 15:115. [PMID: 35317820 PMCID: PMC8939125 DOI: 10.1186/s13104-022-05924-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 01/26/2022] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE The redbanded stink bug (RBSB), Piezodorus guildinii (Hemiptera: Pentatomidae), is native to the Caribbean Basin and is currently considered an invasive pest in Florida, Louisiana, Mississippi, and Texas in the southern United States. Although RBSB is an economically important invasive pest in the USA, relatively few studies have been conducted to understand molecular mechanisms, population genetic structure, and the genetic basis of resistance to insecticides. The objective of this work was to obtain a high-quality genome assembly to develop genomic resources to conduct population genetic, genomic, and physiological studies of the RBSB. RESULTS The genome of RBSB was sequenced with Pacific Biosciences technology followed by two rounds of scaffolding using Chicago libraries and HiC proximity ligation to obtain a high-quality assembly. The genome assembly contained 800 scaffolds larger than 1 kbp and the N50 was 170.84 Mbp. The largest scaffold was 222.22 Mbp and 90% of the genome was included in the 7 scaffolds larger than 118 Mbp. The number of megabase scaffolds also matched the number of chromosomes in this insect. The genome sequence will facilitate the development of resources to conduct studies on genetics, transcriptomics, and physiology of RBSB.
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Affiliation(s)
- Surya Saha
- Boyce Thompson Institute, 533 Tower Road, Ithaca, NY 14853 USA
| | - K. Clint Allen
- Southern Insect Management Research Unit, USDA ARS, Stoneville, MS 38776 USA
| | | | - Gadi V. P. Reddy
- Southern Insect Management Research Unit, USDA ARS, Stoneville, MS 38776 USA
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Moro MS, Wu X, Wei W, Mendes LW, Allen KC, Pinheiro JB, Clough SJ, Zucchi MI. Characterization and Comparison of Intestinal Bacterial Microbiomes of Euschistus heros and Piezodorus guildinii Collected in Brazil and the United States. Front Microbiol 2021; 12:769965. [PMID: 34777323 PMCID: PMC8579040 DOI: 10.3389/fmicb.2021.769965] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 09/27/2021] [Indexed: 01/05/2023] Open
Abstract
Background: Herbivorous insects are one of the main biological threats to crops. One such group of insects, stink bugs, do not eat large amounts of tissue when feeding on soybean, but are damaging to the quality of the seed yield as they feed on green developing seeds leading to poorly marketable harvests. In addition to causing physical damage during sucking-feeding activities, the insects can also transmit microbial pathogens, leading to even greater yield loss. Conducting surveys of the insect intestinal microbiome can help identify possible pathogens, as well as detail what healthy stink bug digestive systems have in common. Methods: We used the conserved V4 region of the 16S rRNA gene to characterize the bacterial microbiome of the red-banded stink bug Piezodorus guildinii collected in Brazil and the United States, as well as the neotropical brown stink bug Euschistus heros collected in Brazil. Results: After quality filtering of the data, 192 samples were kept for analyses: 117 samples from P. guildinii covering three sites in Brazil and four sites in the United States, and 75 samples for E. heros covering 10 sites in Brazil. The most interesting observations were that the diversity and abundance of some bacterial families were different in the different ecoregions of Brazil and the United States. Conclusion: Some families, such as Acetobacteraceae, Bacillaceae, Moraxellaceae, Enterobacteriaceae, and Rhodocyclaceae, may be related to the better adaptation in some localities in providing nutrients, break down cellulose, detoxify phytochemicals, and degrade organic compounds, which makes it difficult to control these species.
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Affiliation(s)
- Matheus Sartori Moro
- Genetics and Molecular Biology - Biology Institute, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil.,Genetics and Genomics Conservation Laboratory (UNICAMP), Piracicaba, Brazil
| | - Xing Wu
- Department of Crop Science, University of Illinois, Urbana, IL, United States
| | - Wei Wei
- Department of Crop Science, University of Illinois, Urbana, IL, United States
| | | | - Kerry Clint Allen
- United States Department of Agriculture-Agricultural Research Services, Southern Insect Management Research, Stoneville, MS, United States
| | - José Baldin Pinheiro
- Department of Genetics, Luiz de Queiroz College of Agriculture (ESALQ), Piracicaba, Brazil
| | - Steven J Clough
- Department of Crop Science, University of Illinois, Urbana, IL, United States.,United States Department of Agriculture-Agricultural Research Services, Soybean/Maize Germplasm, Pathology and Genetics Research, Urbana, IL, United States
| | - Maria Imaculada Zucchi
- Genetics and Genomics Conservation Laboratory (UNICAMP), Piracicaba, Brazil.,São Paulo Agency of Agribusiness Technology (APTA), Piracicaba, Brazil
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Ward CM, Perry KD, Baker G, Powis K, Heckel DG, Baxter SW. A haploid diamondback moth (Plutella xylostella L.) genome assembly resolves 31 chromosomes and identifies a diamide resistance mutation. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2021; 138:103622. [PMID: 34252570 DOI: 10.1016/j.ibmb.2021.103622] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 07/04/2021] [Accepted: 07/04/2021] [Indexed: 05/21/2023]
Abstract
The diamondback moth, Plutella xylostella (L.), is a highly mobile brassica crop pest with worldwide distribution and can rapidly evolve resistance to insecticides, including group 28 diamides. Reference genomes assembled using Illumina sequencing technology have provided valuable resources to advance our knowledge regarding the biology, origin and movement of diamondback moth, and more recently with its sister species, Plutella australiana. Here we apply a trio binning approach to sequence and annotate a chromosome level reference genome of P. xylostella using PacBio Sequel and Dovetail Hi-C sequencing technology and identify a point mutation that causes resistance to commercial diamides. A P. xylostella population collected from brassica crops in the Lockyer Valley, Australia (LV-R), was reselected for chlorantraniliprole resistance then a single male was crossed to a P. australiana female and a hybrid pupa sequenced. A chromosome level 328 Mb P. xylostella genome was assembled with 98.1% assigned to 30 autosomes and the Z chromosome. The genome was highly complete with 98.4% of BUSCO Insecta genes identified and RNAseq informed protein prediction annotated 19,002 coding genes. The LV-R strain survived recommended field application doses of chlorantraniliprole, flubendiamide and cyclaniliprole. Some hybrids also survived these doses, indicating significant departure from recessivity, which has not been previously documented for diamides. Diamide chemicals modulate insect Ryanodine Receptors (RyR), disrupting calcium homeostasis, and we identified an amino acid substitution (I4790K) recently reported to cause diamide resistance in a strain from Japan. This chromosome level assembly provides a new resource for insect comparative genomics and highlights the emergence of diamide resistance in Australia. Resistance management plans need to account for the fact that resistance is not completely recessive.
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Affiliation(s)
- C M Ward
- School of Biological Sciences, University of Adelaide, 5005, Australia
| | - K D Perry
- South Australian Research and Development Institute, Urrbrae, 5064, Australia
| | - G Baker
- South Australian Research and Development Institute, Urrbrae, 5064, Australia
| | - K Powis
- South Australian Research and Development Institute, Urrbrae, 5064, Australia
| | - D G Heckel
- Department of Entomology, Max Planck Institute for Chemical Ecology, 07745, Jena, Germany
| | - S W Baxter
- Bio21 Institute, School of BioSciences, University of Melbourne, 3052, Australia.
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