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Galambos N, Vincent-Monegat C, Vallier A, Parisot N, Heddi A, Zaidman-Rémy A. Cereal weevils' antimicrobial peptides: at the crosstalk between development, endosymbiosis and immune response. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230062. [PMID: 38497254 PMCID: PMC10945404 DOI: 10.1098/rstb.2023.0062] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/12/2023] [Indexed: 03/19/2024] Open
Abstract
Interactions between animals and microbes are ubiquitous in nature and strongly impact animal physiology. These interactions are shaped by the host immune system, which responds to infections and contributes to tailor the associations with beneficial microorganisms. In many insects, beneficial symbiotic associations not only include gut commensals, but also intracellular bacteria, or endosymbionts. Endosymbionts are housed within specialized host cells, the bacteriocytes, and are transmitted vertically across host generations. Host-endosymbiont co-evolution shapes the endosymbiont genome and host immune system, which not only fights against microbial intruders, but also ensures the preservation of endosymbionts and the control of their load and location. The cereal weevil Sitophilus spp. is a remarkable model in which to study the evolutionary adaptation of the immune system to endosymbiosis owing to its binary association with a unique, relatively recently acquired nutritional endosymbiont, Sodalis pierantonius. This Gram-negative bacterium has not experienced the genome size shrinkage observed in long-term endosymbioses and has retained immunogenicity. We focus here on the sixteen antimicrobial peptides (AMPs) identified in the Sitophilus oryzae genome and their expression patterns in different tissues, along host development or upon immune challenges, to address their potential functions in the defensive response and endosymbiosis homeostasis along the insect life cycle. This article is part of the theme issue 'Sculpting the microbiome: how host factors determine and respond to microbial colonization'.
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Affiliation(s)
- N. Galambos
- INSA Lyon, INRAE, BF2I, UMR203, 69621 Villeurbanne, France
| | | | - A. Vallier
- INRAE, INSA Lyon, BF2I, UMR203, 69621 Villeurbanne, France
| | - N. Parisot
- INSA Lyon, INRAE, BF2I, UMR203, 69621 Villeurbanne, France
| | - A. Heddi
- INSA Lyon, INRAE, BF2I, UMR203, 69621 Villeurbanne, France
| | - A. Zaidman-Rémy
- INSA Lyon, INRAE, BF2I, UMR203, 69621 Villeurbanne, France
- Institut universitaire de France (IUF), 75005 Paris, France
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2
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Noguerales V, Arjona Y, García-Olivares V, Machado A, López H, Patiño J, Emerson BC. Genetic legacies of mega-landslides: Cycles of isolation and contact across flank collapses in an oceanic island. Mol Ecol 2024; 33:e17341. [PMID: 38576177 DOI: 10.1111/mec.17341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 04/06/2024]
Abstract
Catastrophic flank collapses are recognized as important drivers of insular biodiversity dynamics, through the disruption of species ranges and subsequent allopatric divergence. However, little empirical data supports this conjecture, with their evolutionary consequences remaining poorly understood. Using genome-wide data within a population genomics and phylogenomics framework, we evaluate how mega-landslides have impacted evolutionary and demographic history within a species complex of weevils (Curculionidae) within the Canary Island of Tenerife. We reveal a complex genomic landscape, within which individuals of single ancestry were sampled in areas characterized by long-term geological stability, relative to the timing of flank collapses. In contrast, individuals of admixed ancestry were almost exclusively sampled within the boundaries of flank collapses. Estimated divergence times among ancestral populations aligned with the timings of mega-landslide events. Our results provide first evidence for a cyclical dynamic of range fragmentation and secondary contact across flank collapse landscapes, with support for a model where this dynamic is mediated by Quaternary climate oscillations. The context within which we reveal climate and topography to interact cyclically through time to shape the geographic structure of genetic variation, together with related recent work, highlights the importance of topoclimatic phenomena as an agent of diversification within insular invertebrates.
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Affiliation(s)
- Víctor Noguerales
- Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), San Cristóbal de La Laguna, Canary Islands, Spain
| | - Yurena Arjona
- Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), San Cristóbal de La Laguna, Canary Islands, Spain
- Department of Botany, Ecology and Plant Physiology, University of La Laguna, San Cristóbal de La Laguna, Canary Islands, Spain
| | - Víctor García-Olivares
- Plataforma Genómica de Alto Rendimiento para el Estudio de la Biodiversidad, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), San Cristóbal de La Laguna, Canary Islands, Spain
- Genomics Division, Instituto Tecnológico y de Energías Renovables (ITER), Santa Cruz de Tenerife, Canary Islands, Spain
| | - Antonio Machado
- C/Chopin 1, San Cristóbal de La Laguna, Canary Islands, Spain
| | - Heriberto López
- Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), San Cristóbal de La Laguna, Canary Islands, Spain
| | - Jairo Patiño
- Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), San Cristóbal de La Laguna, Canary Islands, Spain
- Department of Botany, Ecology and Plant Physiology, University of La Laguna, San Cristóbal de La Laguna, Canary Islands, Spain
| | - Brent C Emerson
- Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), San Cristóbal de La Laguna, Canary Islands, Spain
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Lizana P, Mutis A, Palma-Millanao R, González-González A, Ceballos R, Quiroz A, Bardehle L, Hidalgo A, Torres F, Romero-López A, Venthur H. Comparative transcriptomic analysis of chemoreceptors in two sympatric scarab beetles, Hylamorpha elegans and Brachysternus prasinus. Comp Biochem Physiol Part D Genomics Proteomics 2024; 49:101174. [PMID: 38096641 DOI: 10.1016/j.cbd.2023.101174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 02/15/2024]
Abstract
Chemoreception through odorant receptors (ORs), ionotropic receptors (IRs) and gustatory receptors (GRs) represents the functions of key proteins in the chemical ecology of insects. Recent studies have identified chemoreceptors in coleopterans, facilitating the evolutionary analysis of not only ORs but also IRs and GRs. Thus, Cerambycidae, Tenebrionidae and Curculionidae have received increased attention. However, knowledge of the chemoreceptors from Scarabaeidae is still limited, particularly for those that are sympatric. Considering the roles of chemoreceptors, this analysis could shed light on evolutionary processes in the context of sympatry. Therefore, the aim of this study was to identify and compare the repertoires of ORs, GRs and IRs between two sympatric scarab beetles, Hylamorpha elegans and Brachysternus prasinus. Here, construction of the antennal transcriptomes of both scarab beetle species and analyses of their phylogeny, molecular evolution and relative expression were performed. Thus, 119 new candidate chemoreceptors were identified for the first time, including 17 transcripts for B. prasinus (1 GR, 3 IRs and 13 ORs) and 102 for H. elegans (22 GRs, 14 IRs and 66 ORs). Orthologs between the two scarab beetle species were found, revealing specific expansions as well as absence in some clades. Purifying selection appears to have occurred on H. elegans and B. prasinus ORs. Further efforts will be focused on target identification to characterize kairomone and/or pheromone receptors.
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Affiliation(s)
- Paula Lizana
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco, Chile; Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile
| | - Ana Mutis
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile; Centro de Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Temuco, Chile
| | - Rubén Palma-Millanao
- Vicerrectoría de Investigación y Postgrado, Universidad de La Frontera, Temuco, Chile
| | - Angélica González-González
- Laboratorio de Interacciones Insecto-Planta, Instituto de Ciencias Biológicas, Universidad de Talca, Casilla 747, Talca, Chile
| | - Ricardo Ceballos
- Laboratorio de Ecología Química, Centro Tecnológico de Control Biológico, Instituto de Investigaciones Agropecuarias (INIA)-Quilamapu, Chillán, Chile
| | - Andrés Quiroz
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile; Centro de Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Temuco, Chile
| | - Leonardo Bardehle
- Departamento de Producción Agropecuaria, Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, Temuco, Chile
| | - Alejandro Hidalgo
- Departamento de Ciencias Preclínicas, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile
| | - Fernanda Torres
- Carrera de Química y Farmacia, Facultad de Medicina, Universidad de La Frontera, Temuco, Chile
| | - Angel Romero-López
- Laboratorio de Infoquímicos y Otros Productos Bióticos, Facultad de Ciencias Biológicas, Benemérita Universidad Autónoma de Puebla, Mexico
| | - Herbert Venthur
- Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco, Chile; Centro de Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA), Universidad de La Frontera, Temuco, Chile.
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Yuan W, Rao X, Zhong B, Chen M, Ali H, Lv C, Niu C. Exploring the functional profiles of odorant binding proteins crucial for sensing key odorants in the new leaves of coconut palms in Rhynchophorus ferrugineus. Int J Biol Macromol 2024; 261:129852. [PMID: 38307432 DOI: 10.1016/j.ijbiomac.2024.129852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/28/2024] [Accepted: 01/28/2024] [Indexed: 02/04/2024]
Abstract
The red palm weevil (RPW), Rhynchophorus ferrugineus (Curculionidae: Coleoptera) is a highly destructive global pest of coconut trees, with a preference for laying its eggs on new leaves. Females can identify where to lay eggs by using their sense of smell to detect specific odorants found in new leaves. In this study, we focused on the two odorants commonly found in new leaves by GC-MS: trans, trans-2,4-nonadienal and trans-2-nonenal. Our behavioral assays demonstrated a significant attraction of females to both of these odorants, with their electrophysiological responses being dose-dependent. Furthermore, we examined the expression patterns induced by these odorants in eleven RferOBP genes. Among them, RferOBP3 and RferOBP1768 exhibited the most significant and simultaneous upregulation. To further understand the role of these two genes, we conducted experiments with females injected with OBP-dsRNA. This resulted in a significant decrease in the expression of RferOBP3 and RferOBP1768, as well as impaired the perception of the two odorants. A fluorescence competitive binding assay also showed that both RferOBPs strongly bound to the odorants. Additionally, sequence analysis revealed that these two RferOBPs belong to the Minus-C family and possess four conserved cysteines. Molecular docking simulations showed strong interactions between these two RferOBPs and the odorant molecules. Overall, our findings highlight the crucial role of RferOBP3 and RferOBP1768 in the olfactory perception of the key odorants in coconut palm new leaves. This knowledge significantly improves our understanding of how RPW females locate sites for oviposition and lays the foundation for future research on the development of environmentally friendly pest attractants.
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Affiliation(s)
- Weiqin Yuan
- Coconut Research Institute/Tropical Oil Crops Research Institute, Chinese Academy of Tropical Agriculture Sciences, Wenchang, Hainan 571300, China; College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xinjie Rao
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; New Horizon Health Co., Ltd., Hangzhou 310051, China
| | - Baozhu Zhong
- Coconut Research Institute/Tropical Oil Crops Research Institute, Chinese Academy of Tropical Agriculture Sciences, Wenchang, Hainan 571300, China
| | - Mengran Chen
- College of Plant Protection/Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, Hainan University, Haikou 570228, China
| | - Habib Ali
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information technology, Rahim Yar Khan 64200, Pakistan
| | - Chaojun Lv
- Coconut Research Institute/Tropical Oil Crops Research Institute, Chinese Academy of Tropical Agriculture Sciences, Wenchang, Hainan 571300, China.
| | - Changying Niu
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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Lu TT, Yin NN, Yang AJ, Yao YJ, Li ZQ, Liu NY. Comparative transcriptomics reveals the conservation and divergence of reproductive genes across three sympatric Tomicus bark beetles. Comp Biochem Physiol Part D Genomics Proteomics 2024; 49:101168. [PMID: 38061252 DOI: 10.1016/j.cbd.2023.101168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 02/15/2024]
Abstract
Three tree-killing bark beetles belonging to the genus Tomicus, Tomicus yunnanensis, Tomicus brevipilosus and Tomicus minor (Coleoptera; Curculionidae, Scolytinae), are serious wood-borers with larvae feeding on the phloem tissues of Pinus yunnanensis. The three Tomicus beetles, in some cases, coexist in a same habitat, providing a best system for exploring the conservation and divergence of reproductive genes. Here, we applied comparative transcriptomics and molecular biology approaches to characterize reproductive-related genes in three sympatric Tomicus species. Illumina sequencing of female and male reproductive systems and residual bodies generated a large number of clean reads, representing 185,920,232 sequences in T. yunnanensis, 169,153,404 in T. brevipilosus and 178,493,176 in T. minor that were assembled into 32,802, 56,912 and 33,670 unigenes, respectively. The majority of the genes had detectable expression in reproductive tissues (FPKM >1), particularly those genes in T. brevipilosus accounting for 76.61 % of the total genes. From the transcriptomes, totally 838 genes encoding 463 detoxification enzymes, 339 chemosensory membrane proteins and 36 ionotropic glutamate receptors (iGluRs) were identified, including 622 reproductive tissue-expressed genes. Of these, members of carboxylesterases (COEs), ionotropic receptors (IRs), sensory neuron membrane proteins (SNMPs) and iGluRs were highly conserved in gene numbers and sequence identities across three Tomicus species. Further, expression profiling analyses revealed a number of genes expressed in reproductive tissues and the diverse expression characteristics in these beetles. The results provide evidence for the conservation and differences of reproductive genes among three sympatric closely related beetles, helping understand their different reproductive strategies and the maximization of the reproductive success.
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Affiliation(s)
- Ting-Ting Lu
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Ning-Na Yin
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - An-Jing Yang
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Yu-Juan Yao
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China
| | - Zhao-Qun Li
- Key Laboratory of Tea Biology and Resource Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Science, Hangzhou 310008, China.
| | - Nai-Yong Liu
- Key Laboratory of Forest Disaster Warning and Control of Yunnan Province, Southwest Forestry University, Kunming 650224, China.
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6
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Sylvester T, Adams R, Hunter WB, Li X, Rivera-Marchand B, Shen R, Shin NR, McKenna DD. The genome of the invasive and broadly polyphagous Diaprepes root weevil, Diaprepes abbreviatus (Coleoptera), reveals an arsenal of putative polysaccharide-degrading enzymes. J Hered 2024; 115:94-102. [PMID: 37878740 DOI: 10.1093/jhered/esad064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/14/2023] [Accepted: 10/23/2023] [Indexed: 10/27/2023] Open
Abstract
The Diaprepes root weevil (DRW), Diaprepes abbreviatus, is a broadly polyphagous invasive pest of agriculture in the southern United States and the Caribbean. Its genome was sequenced, assembled, and annotated to study genomic correlates of specialized plant-feeding and invasiveness and to facilitate the development of new methods for DRW control. The 1.69 Gb D. abbreviatus genome assembly was distributed across 653 contigs, with an N50 of 7.8 Mb and the largest contig of 62 Mb. Most of the genome was comprised of repetitive sequences, with 66.17% in transposable elements, 5.75% in macrosatellites, and 2.06% in microsatellites. Most expected orthologous genes were present and fully assembled, with 99.5% of BUSCO genes present and 1.5% duplicated. One hundred and nine contigs (27.19 Mb) were identified as putative fragments of the X and Y sex chromosomes, and homology assessment with other beetle X chromosomes indicated a possible sex chromosome turnover event. Genome annotation identified 18,412 genes, including 43 putative horizontally transferred (HT) loci. Notably, 258 genes were identified from gene families known to encode plant cell wall degrading enzymes and invertases, including carbohydrate esterases, polysaccharide lyases, and glycoside hydrolases (GH). GH genes were unusually numerous, with 239 putative genes representing 19 GH families. Interestingly, several other beetle species with large numbers of GH genes are (like D. abbreviatus) successful invasive pests of agriculture or forestry.
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Affiliation(s)
- Terrence Sylvester
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, United States
- Center for Biodiversity Research, University of Memphis, Memphis, TN 38152, United States
| | - Richard Adams
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, United States
- Agricultural Statistics Laboratory, University of Arkansas, Fayetteville, AR, United States
| | - Wayne B Hunter
- USDA, ARS, U. S. Horticultural Research Laboratory, Fort Pierce, FL 34945, United States
| | - Xuankun Li
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, United States
- Center for Biodiversity Research, University of Memphis, Memphis, TN 38152, United States
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Bert Rivera-Marchand
- Office of Academic Affairs, Polk State College, Lakeland Campus, Lakeland, FL, 33803, United States
| | - Rongrong Shen
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, United States
- Center for Biodiversity Research, University of Memphis, Memphis, TN 38152, United States
| | - Na Ra Shin
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, United States
- Center for Biodiversity Research, University of Memphis, Memphis, TN 38152, United States
| | - Duane D McKenna
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, United States
- Center for Biodiversity Research, University of Memphis, Memphis, TN 38152, United States
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Sudalaimuthuasari N, Kundu B, Hazzouri KM, Amiri KMA. Near-chromosomal-level genome of the red palm weevil (Rhynchophorus ferrugineus), a potential resource for genome-based pest control. Sci Data 2024; 11:45. [PMID: 38184710 PMCID: PMC10771492 DOI: 10.1038/s41597-024-02910-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/29/2023] [Indexed: 01/08/2024] Open
Abstract
The red palm weevil (RPW) is a highly destructive pest that mainly affects palms, particularly date palms (Phoenix dactylifera), in the Arabian Gulf region. In this study, we present a near-chromosomal-level genome assembly of the RPW using a combination of PacBio HiFi and Dovetail Omini-C reads. The final genome assembly is around 779 Mb in size, with an N50 of ~43 Mb, consistent with our previous flow cytometry estimates. The completeness of the genome was confirmed through BUSCO analysis, which indicates the presence of 99.5% of BUSCO single copy orthologous genes. The genome annotation identified a total of 29,666 protein-coding, 1,091 tRNA and 543 rRNA genes. Overall, the proposed genome assembly is significantly superior to existing assemblies in terms of contiguity, integrity, and genome completeness.
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Affiliation(s)
| | - Biduth Kundu
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, UAE
| | - Khaled M Hazzouri
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al Ain, UAE.
| | - Khaled M A Amiri
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al Ain, UAE.
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, UAE.
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Sauka DH, Peralta C, Pérez MP, Molla A, Fernandez-Göbel T, Ocampo F, Palma L. Bacillus thuringiensis Bt_UNVM-84, a Novel Strain Showing Insecticidal Activity against Anthonomus grandis Boheman (Coleoptera: Curculionidae). Toxins (Basel) 2023; 16:4. [PMID: 38276528 PMCID: PMC10819922 DOI: 10.3390/toxins16010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/16/2023] [Accepted: 12/18/2023] [Indexed: 01/27/2024] Open
Abstract
Bacillus thuringiensis is a Gram-positive bacterium known for its insecticidal proteins effective against various insect pests. However, limited strains and proteins target coleopteran pests like Anthonomous grandis Boheman, causing substantial economic losses in the cotton industry. This study focuses on characterizing a Bacillus sp. strain, isolated from Oncativo (Argentina), which exhibits ovoid to amorphous parasporal crystals and was designated Bt_UNVM-84. Its genome encodes genes for the production of two pairs of binary Vpb1/Vpa2 proteins and three Cry-like proteins showing similarity with different Cry8 proteins. Interestingly, this gene content was found to be conserved in a previously characterized Argentine isolate of B. thuringiensis designated INTA Fr7-4. SDS-PAGE analysis revealed a major band of 130 kDa that is proteolytically processed to an approximately 66-kDa protein fragment by trypsin. Bioassays performed with spore-crystal mixtures demonstrated an interesting insecticidal activity against the cotton boll weevil A. grandis neonate larvae, resulting in 91% mortality. Strain Bt_UNVM-84 is, therefore, an interesting candidate for the efficient biological control of this species, causing significant economic losses in the cotton industry in the Americas.
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Affiliation(s)
- Diego Herman Sauka
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina; (D.H.S.); (C.P.)
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Microbiología y Zoología Agrícola (IMYZA), Hurlingham, Ciudad Autónoma de Buenos Aires 1686, Argentina;
| | - Cecilia Peralta
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina; (D.H.S.); (C.P.)
- Instituto Multidisciplinario de Investigación y Transferencia Agroalimentaria y Biotecnológica (IMITAB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Villa María (UNVM), Villa María 1555, Argentina;
- Laboratorio de Control Biotecnológico de Plagas, Instituto BIOTECMED, Departamento de Genética, Universitat de València, 46100 València, Spain
| | - Melisa Paula Pérez
- Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Microbiología y Zoología Agrícola (IMYZA), Hurlingham, Ciudad Autónoma de Buenos Aires 1686, Argentina;
| | - Antonella Molla
- Instituto Multidisciplinario de Investigación y Transferencia Agroalimentaria y Biotecnológica (IMITAB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Villa María (UNVM), Villa María 1555, Argentina;
| | - Tadeo Fernandez-Göbel
- Elytron Biotech S.A., 275 Ing. Enrique Butty Street, Ciudad Autónoma de Buenos Aires C1001, Argentina; (T.F.-G.); (F.O.)
| | - Federico Ocampo
- Elytron Biotech S.A., 275 Ing. Enrique Butty Street, Ciudad Autónoma de Buenos Aires C1001, Argentina; (T.F.-G.); (F.O.)
| | - Leopoldo Palma
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires C1425FQB, Argentina; (D.H.S.); (C.P.)
- Instituto Multidisciplinario de Investigación y Transferencia Agroalimentaria y Biotecnológica (IMITAB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Villa María (UNVM), Villa María 1555, Argentina;
- Laboratorio de Control Biotecnológico de Plagas, Instituto BIOTECMED, Departamento de Genética, Universitat de València, 46100 València, Spain
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Barbosa Rodrigues JD, Moreira RO, de Souza JAM, Desidério JA. Interaction of insecticidal proteins from Pseudomonas spp. and Bacillus thuringiensis for boll weevil management. PLoS One 2023; 18:e0294654. [PMID: 38033128 PMCID: PMC10688866 DOI: 10.1371/journal.pone.0294654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
Cotton crop yields are largely affected by infestations of Anthonomus grandis, which is its main pest. Although Bacillus thuringiensis (Bt) derived proteins can limit insect pest infestations, the diverse use of control methods becomes a viable alternative in order to prolong the use of technology in the field. One of the alternative methods to Bt technology has been the utilization of certain Pseudomonas species highly efficient in controlling coleopteran insects have been used to produce highly toxic insecticidal proteins. This study aimed to evaluate the toxicity of IPD072Aa and PIP-47Aa proteins, isolated from Pseudomonas spp., in interaction with Cry1Ia10, Cry3Aa, and Cry8B proteins isolated from B. thuringiensis, to control A. grandis in cotton crops. The genes IPD072Aa and PIP-47Aa were synthesized and cloned into a pET-SUMO expression vector. Moreover, Cry1Ia10, Cry3Aa, and Cry8B proteins were obtained by inducing recombinant E. coli clones, which were previously acquired by our research group from the Laboratory of Bacteria Genetics and Applied Biotechnology (LGBBA). These proteins were visualized in SDS-PAGE, quantified, and incorporated into an artificial diet to estimate their lethal concentrations (LC) through individual or combined bioassays. The results of individual toxicity revealed that IPD072Aa, PIP-47Aa, Cry1Ia10, Cry3Aa, and Cry8B were efficient in controlling A. grandis, with the latter being the most toxic. Regarding interaction assays, a high synergistic interaction was observed between Cry1Ia10 and Cry3Aa. All interactions involving Cry3Aa and PIP-47Aa, when combined with other proteins, showed a clear synergistic effect. Our findings highlighted that the tested proteins in combination, for the most part, increase toxicity against A. grandis neonate larvae, suggesting possible constructions for pyramiding cotton plants to the manage and the control boll weevils.
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Affiliation(s)
- Jardel Diego Barbosa Rodrigues
- Biology Department, Faculty of Agrarian and Veterinary Sciences (Jaboticabal Campus), São Paulo State University (UNESP), São Paulo, Brazil
| | - Raquel Oliveira Moreira
- Biology Department, Faculty of Agrarian and Veterinary Sciences (Jaboticabal Campus), São Paulo State University (UNESP), São Paulo, Brazil
| | - Jackson Antônio Marcondes de Souza
- Biology Department, Faculty of Agrarian and Veterinary Sciences (Jaboticabal Campus), São Paulo State University (UNESP), São Paulo, Brazil
| | - Janete Apparecida Desidério
- Biology Department, Faculty of Agrarian and Veterinary Sciences (Jaboticabal Campus), São Paulo State University (UNESP), São Paulo, Brazil
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10
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Liu L, Wang F, Yang W, Yang H, Huang Q, Yang C, Hui W. Molecular and Functional Characterization of Pheromone Binding Protein 2 from Cyrtotrachelus buqueti (Coleoptera: Curculionidae). Int J Mol Sci 2023; 24:16925. [PMID: 38069247 PMCID: PMC10706763 DOI: 10.3390/ijms242316925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Pheromone-binding proteins (PBPs) play important roles in binding and transporting sex pheromones. However, the PBP genes identified in coleopteran insects and their information sensing mechanism are largely unknown. Cyrtotrachelus buqueti (Coleoptera: Curculionidae) is a major insect pest of bamboo plantations. In this study, a novel PBP gene, CbuqPBP2, from C. buqueti was functionally characterized. CbuqPBP2 was more abundantly expressed in the antennae of both sexes than other body parts, and its expression level was significantly male-biased. Fluorescence competitive binding assays showed that CbuqPBP2 exhibited the strongest binding affinity to dibutyl phthalate (Ki = 6.32 μM), followed by styrene (Ki = 11.37 μM), among twelve C. buqueti volatiles. CbuqPBP2, on the other hand, showed high binding affinity to linalool (Ki = 10.55), the main volatile of host plant Neosinocalamus affinis. Furthermore, molecular docking also demonstrated the strong binding ability of CbuqPBP2 to dibutyl phthalate, styrene, and linalool, with binding energy values of -5.7, -6.6, and -6.0 kcal/mol, respectively, and hydrophobic interactions were the prevailing forces. The knockdown of CbuqPBP2 expression via RNA interference significantly reduced the electroantennography (EAG) responses of male adults to dibutyl phthalate and styrene. In conclusion, these results will be conducive to understanding the olfactory mechanisms of C. buqueti and promoting the development of novel strategies for controlling this insect pest.
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Affiliation(s)
| | | | | | - Hua Yang
- National Forestry and Grassland Administration Key Laboratory of Forest Resources Conservation and Ecological Safety on the Upper Reaches of the Yangtze River, College of Forestry, Sichuan Agricultural University, Chengdu 611130, China; (L.L.); (F.W.); (W.Y.); (Q.H.); (C.Y.); (W.H.)
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11
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Kerchev IA, Ilinsky YY, Bykov RA, Mandelshtam MY. Dryocoetiops krivetsae sp. n. (Coleoptera: Curculionidae: Scolytinae: Dryocoetini), the northernmost species of the genus: conflicts between molecular and morphological data in the tribe Dryocoetini. Zootaxa 2023; 5369:269-276. [PMID: 38220715 DOI: 10.11646/zootaxa.5369.2.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Indexed: 01/16/2024]
Abstract
A new species of bark beetle, Dryocoetiops krivetsae Kerchev, Mandelshtam, Bykov et Ilinsky, sp. n., from the southern part of Primorsky Krai (Russian Far East), is described. This is the northernmost discovery of the Oriental genus Dryocoetiops Schedl, 1957, and the first record of the genus in the Russian fauna. Phylogenetic analysis of nuclear and mitochondrial genes i) confirms an independent lineage of Dryocoetiops krivetsae and ii) indicates numerous conflicts of genera relationships in the tribe Dryocoetini.
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Affiliation(s)
- Ivan A Kerchev
- Institute of Monitoring of Climatic and Ecological Systems, Siberian Branch of Russian Academy of Sciences (SB RAS), Tomsk 634055, Russia; Tomsk State University, Department of Forestry and Landscape Construction, Tomsk 634050; Russia; Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Federal Research Center Krasnoyarsk Science Center SB RAS, Akademgorodok 50/28, 660036 Krasnoyarsk, Russia.
| | - Yury Yu Ilinsky
- Institute of Cytology and Genetics; SB RAS; Novosibirsk 630090; Russia.
| | - Roman A Bykov
- Institute of Cytology and Genetics; SB RAS; Novosibirsk 630090; Russia.
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12
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Selvapandian U, Nallusamy S, Singh SK, Mannu J, Shanmugam V, Ravikumar C, Subbarayalu M. Transcriptome profiling and in silico docking analysis of phosphine resistance in rice weevil, Sitophilus oryzae (Coleoptera: Curculionidae). J Insect Sci 2023; 23:29. [PMID: 38159032 PMCID: PMC10757423 DOI: 10.1093/jisesa/iead110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 09/08/2023] [Accepted: 11/28/2023] [Indexed: 01/03/2024]
Abstract
The rice weevil, Sitophilus oryzae (Linnaeus, Coleoptera: Curculionidae), is a serious cosmopolitan pest that affects grain in storage and has developed high levels of resistance toward phosphine. In this study, RNA-seq data was used to study the phosphine resistance mechanisms in S. oryzae. Resistant and susceptible populations of S. oryzae were identified based on phosphine bioassays conducted in 32 populations collected across Tamil Nadu, India. Differential expression of mitochondrial (COX1, COX2, COX3, ND2, ND3, ATP6, and ATP8) and detoxification genes (Cyps, Gsts, and Cbe) were observed in the resistant and susceptible populations of S. oryzae. The previously characterized phosphine resistant gene, dld (dihydrolipoamide dehydrogenase) linked to the rph2 locus, was found to be up-regulated in resistant S. oryzae population (ISO-TNAU-RT) treated with phosphine. Also, the genes involved in Tricarboxylic acid (TCA) cycle were significantly down-regulated. In addition, a significant up-regulation in the expression of the antioxidant enzymes superoxide dismutase (2.5×) and catalase (2.1×) in ISO-TNAU-RT populations was recorded. Furthermore, a distinct amino acid substitution, Lysine > Glutamic acid (K141E) was identified in resistant phenotypes. In silico docking studies of both resistant and susceptible DLD protein with phosphine molecule revealed that the amino acid residues involved in the interaction were different. This suggested that the amino acid substitution might lead to structural modifications which reduces the affinity of the target (phosphine). This study provides insight on the various genes, pathways, and functional mechanisms having a significant role in phosphine resistance in S. oryzae.
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Affiliation(s)
- Upasna Selvapandian
- Department of Plant Biotechnology, Centre for Plant Molecular Biology & Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Saranya Nallusamy
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology & Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Sonu Kumar Singh
- Department of Plant Biotechnology, Centre for Plant Molecular Biology & Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Jayakanthan Mannu
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology & Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Varanavasiappan Shanmugam
- Department of Plant Biotechnology, Centre for Plant Molecular Biology & Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Caroline Ravikumar
- Department of Plant Molecular Biology and Bioinformatics, Centre for Plant Molecular Biology & Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Mohankumar Subbarayalu
- Department of Plant Biotechnology, Centre for Plant Molecular Biology & Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
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13
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Haran J, Li X, Allio R, Shin S, Benoit L, Oberprieler RG, Farrell BD, Brown SDJ, Leschen RAB, Kergoat GJ, McKenna DD. Phylogenomics illuminates the phylogeny of flower weevils (Curculioninae) and reveals ten independent origins of brood-site pollination mutualism in true weevils. Proc Biol Sci 2023; 290:20230889. [PMID: 37817603 PMCID: PMC10565390 DOI: 10.1098/rspb.2023.0889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 09/11/2023] [Indexed: 10/12/2023] Open
Abstract
Weevils are an unusually species-rich group of phytophagous insects for which there is increasing evidence of frequent involvement in brood-site pollination. This study examines phylogenetic patterns in the emergence of brood-site pollination mutualism among one of the most speciose beetle groups, the flower weevils (subfamily Curculioninae). We analysed a novel phylogenomic dataset consisting of 214 nuclear loci for 202 weevil species, with a sampling that mainly includes flower weevils as well as representatives of all major lineages of true weevils (Curculionidae). Our phylogenomic analyses establish a uniquely comprehensive phylogenetic framework for Curculioninae and provide new insights into the relationships among lineages of true weevils. Based on this phylogeny, statistical reconstruction of ancestral character states revealed at least 10 independent origins of brood-site pollination in higher weevils through transitions from ancestral associations with reproductive structures in the larval stage. Broadly, our results illuminate the unexpected frequency with which true weevils-typically specialized phytophages and hence antagonists of plants-have evolved mutualistic interactions of ecological significance that are key to both weevil and plant evolutionary fitness and thus a component of their deeply intertwined macroevolutionary success.
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Affiliation(s)
- J. Haran
- CBGP, CIRAD, INRAE, IRD, Institut Agro, Univ. Montpellier, Montpellier, France
| | - X. Li
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing 100193, People's Republic of China
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, USA
- Center for Biodiversity Research, University of Memphis, Memphis, TN 38152, USA
| | - R. Allio
- CBGP, INRAE, IRD, CIRAD, Institut Agro, Univ. Montpellier, Montpellier, France
| | - S. Shin
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, USA
- Center for Biodiversity Research, University of Memphis, Memphis, TN 38152, USA
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - L. Benoit
- CBGP, CIRAD, INRAE, IRD, Institut Agro, Univ. Montpellier, Montpellier, France
| | - R. G. Oberprieler
- CSIRO, Australian National Insect Collection, GPO Box 1700, Canberra, Australian Capital Territory 2601, Australia
| | - B. D. Farrell
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, USA
| | - S. D. J. Brown
- Bio-Protection Research Centre, Lincoln University, P.O. Box 85084, Lincoln 7647, New Zealand
| | | | - G. J. Kergoat
- CBGP, INRAE, IRD, CIRAD, Institut Agro, Univ. Montpellier, Montpellier, France
| | - D. D. McKenna
- Department of Biological Sciences, University of Memphis, Memphis, TN 38152, USA
- Center for Biodiversity Research, University of Memphis, Memphis, TN 38152, USA
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14
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Hsiao Y, Oberprieler RG, Zwick A, Zhou YL, Ślipiński A. Museomics unveil systematics, diversity and evolution of Australian cycad-pollinating weevils. Proc Biol Sci 2023; 290:20231385. [PMID: 37788699 PMCID: PMC10547556 DOI: 10.1098/rspb.2023.1385] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/08/2023] [Indexed: 10/05/2023] Open
Abstract
Weevils have been shown to play significant roles in the obligate pollination of Australian cycads. In this study, we apply museomics to produce a first molecular phylogeny estimate of the Australian cycad weevils, allowing an assessment of their monophyly, placement and relationships. Divergence dating suggests that the Australian cycad weevils originated from the Late Oligocene to the Middle Miocene and that the main radiation of the cycad-pollinating groups occurred from the Middle to the Late Miocene, which is congruent with the diversification of the Australian cycads, thus refuting any notion of an ancient ciophilous system in Australia. Taxonomic studies reveal the existence of 19 Australian cycad weevil species and that their associations with their hosts are mostly non-species-specific. Co-speciation analysis shows no extensive co-speciation events having occurred in the ciophilous system of Australian cycads. The distribution pattern suggests that geographical factors, rather than diversifying coevolution, constitute the overriding process shaping the Australian cycad weevil diversity. The synchronous radiation of cycads and weevil pollinators is suggested to be a result of the post-Oligocene diversification common in Australian organisms.
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Affiliation(s)
- Yun Hsiao
- Australian National Insect Collection, CSIRO, Canberra, Australian Capital Territory 2601, Australia
- Division of Ecology and Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory 2601, Australia
- Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei, Taiwan
| | - Rolf G. Oberprieler
- Australian National Insect Collection, CSIRO, Canberra, Australian Capital Territory 2601, Australia
| | - Andreas Zwick
- Australian National Insect Collection, CSIRO, Canberra, Australian Capital Territory 2601, Australia
| | - Yu-Lingzi Zhou
- Australian National Insect Collection, CSIRO, Canberra, Australian Capital Territory 2601, Australia
| | - Adam Ślipiński
- Australian National Insect Collection, CSIRO, Canberra, Australian Capital Territory 2601, Australia
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15
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Velásquez C. LF, Cantón PE, Sanchez-Flores A, Soberón M, Bravo A, Cerón S. JA. Identification of Cry toxin receptor genes homologs in a de novo transcriptome of Premnotrypes vorax (Coleoptera: Curculionidae). PLoS One 2023; 18:e0291546. [PMID: 37708134 PMCID: PMC10501650 DOI: 10.1371/journal.pone.0291546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 09/01/2023] [Indexed: 09/16/2023] Open
Abstract
The white potato worm Premnotrypes vorax (Hustache) (Coleoptera: Curculionidae) is one of the most destructive insect pests of potato crops in South America. Like many coleopteran insects, P. vorax shows low susceptibility to Cry insecticidal proteins produced by the bacterium Bacillus thuringiensis (Bt). However, the presence of Cry toxin receptors in the midgut of this this insect has never been studied. The main Cry-binding proteins described in other insect species are cadherin (CAD), aminopeptidase N (APN), alkaline phosphatase (ALP) and ATP-binding cassette (ABC) transporters. In this study, we analyzed and validated a de novo assembled transcriptome of Illumina sequencing data to identify and to characterize homologs of Cry toxin receptors. We identified the protein sequences in P. vorax that show high identity with their orthologous sequences of the Cry toxin binding proteins in other coleopteran larvae such as APN, ALP, CAD and ABC transporter. This study provides preliminary identification of putative receptor genes of Cry proteins that would be useful for future studies involving biocontrol of this important potato crop pest.
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Affiliation(s)
| | - Pablo Emiliano Cantón
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Alejandro Sanchez-Flores
- Unidad Universitaria de Secuenciación Masiva y Bioinformática, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Mario Soberón
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Alejandra Bravo
- Departamento de Microbiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Jairo A. Cerón S.
- Instituto de Biotecnología, Universidad Nacional de Colombia, Bogotá, Colombia
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16
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Li YD, Engel MS, Tihelka E, Cai C. Phylogenomics of weevils revisited: data curation and modelling compositional heterogeneity. Biol Lett 2023; 19:20230307. [PMID: 37727076 PMCID: PMC10509570 DOI: 10.1098/rsbl.2023.0307] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 08/29/2023] [Indexed: 09/21/2023] Open
Abstract
Weevils represent one of the most prolific radiations of beetles and the most diverse group of herbivores on land. The phylogeny of weevils (Curculionoidea) has received extensive attention, and a largely satisfactory framework for their interfamilial relationships has been established. However, a recent phylogenomic study of Curculionoidea based on anchored hybrid enrichment (AHE) data yielded an abnormal placement for the family Belidae (strongly supported as sister to Nemonychidae + Anthribidae). Here we reanalyse the genome-scale AHE data for Curculionoidea using various models of molecular evolution and data filtering methods to mitigate anticipated systematic errors and reduce compositional heterogeneity. When analysed with the infinite mixture model CAT-GTR or using appropriately filtered datasets, Belidae are always recovered as sister to the clade (Attelabidae, (Caridae, (Brentidae, Curculionidae))), which is congruent with studies based on morphology and other sources of molecular data. Although the relationships of the 'higher Curculionidae' remain challenging to resolve, we provide a consistent and robust backbone phylogeny of weevils. Our extensive analyses emphasize the significance of data curation and modelling across-site compositional heterogeneity in phylogenomic studies.
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Affiliation(s)
- Yan-Da Li
- State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China
- Bristol Palaeobiology Group, School of Earth Sciences, University of Bristol, Life Sciences Building, Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Michael S. Engel
- Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192, USA
| | - Erik Tihelka
- Bristol Palaeobiology Group, School of Earth Sciences, University of Bristol, Life Sciences Building, Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Chenyang Cai
- State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China
- Bristol Palaeobiology Group, School of Earth Sciences, University of Bristol, Life Sciences Building, Tyndall Avenue, Bristol BS8 1TQ, UK
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17
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Hu J, Zhao C, Tan J, Lai S, Zhou Y, Dai L. Transcriptome analysis of Euwallacea interjectus reveals differentially expressed unigenes related to developmental stages and egg laying. Comp Biochem Physiol Part D Genomics Proteomics 2023; 47:101100. [PMID: 37329642 DOI: 10.1016/j.cbd.2023.101100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/15/2023] [Accepted: 05/25/2023] [Indexed: 06/19/2023]
Abstract
Euwallacea interjectus (Curculionidae: Scolytinae) is an ambrosia beetle species in its early stages of research. Therefore, studying the related molecular mechanism associated with the development and egg laid is essential. Transcriptome sequencing was used in this study to compare the gene expression of the beetles at different developmental stages and female adults before and after oviposition. A total of 40,047 annotated unigenes were obtained. There were 4225 differentially expressed unigenes (DEUs) from larva to prepupa stage, 3651 DEUs between prepupa and pupa, 1675 DEUs generated from pupa to adult, and 4762 DEUs between females before and after oviposition. The most significant pathway differences between different development stages and before and after oviposition were selected through functional annotation of DEUs between different stages. Among them, there were many pathways related to protein metabolism including: neuroactive ligand-receptor interaction, endoplasmic reticulum and RNA transport. This study provides valuable information on the molecular regulation mechanism of development and the egg laid of E. interjectus.
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Affiliation(s)
- Jiafeng Hu
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210036, China; College of Forestry, Nanjing Forestry University, Nanjing 210036, China
| | - Chen Zhao
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210036, China; College of Forestry, Nanjing Forestry University, Nanjing 210036, China
| | - Jiajin Tan
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210036, China; College of Forestry, Nanjing Forestry University, Nanjing 210036, China
| | - Shengchang Lai
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210036, China; College of Forestry, Nanjing Forestry University, Nanjing 210036, China
| | - Yang Zhou
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210036, China; College of Forestry, Nanjing Forestry University, Nanjing 210036, China
| | - Lulu Dai
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210036, China; College of Forestry, Nanjing Forestry University, Nanjing 210036, China.
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18
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D'Isita I, Di Palma AM, De Vita P, Germinara GS. Acceptance and utilization efficiency of a purple durum wheat genotype by Sitophilus granarius (L.). Sci Rep 2023; 13:14246. [PMID: 37648729 PMCID: PMC10468511 DOI: 10.1038/s41598-023-41384-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 08/25/2023] [Indexed: 09/01/2023] Open
Abstract
The granary weevil (Sitophilus granarius L.) is a major primary pest of stored cereals throughout the world. Among the major classes of plant secondary metabolites, flavonoids can affect insect feeding behaviour and their growth rate. In this study, the susceptibility of an anthocyanin-rich purple durum wheat genotype (T1303) to the granary weevil was evaluated in comparison with two yellow durum (Ofanto) and bread (Mec) wheat varieties. The feeding response and food utilisation efficiency by adult insects was also investigated by calculating nutritional indices in whole flour disk bioassays. Different levels of susceptibility to granary weevil emerged among genotypes tested. The mean food consumption by an insect, F1 progeny, and female parental offspring calculated for the T1303 genotype were significantly lower than those of yellow kernel wheat varieties. Moreover, T1303 genotype induced deterrence in the adult insects as demonstrated by the positive values of the food deterrence index. Besides, relative grow rate and efficiency conversion of ingested food indices were negative for T1303 and positive for both yellow wheat varieties indicating respectively a decrease and an increase of insect body weight during the bioassays. Finally, a higher mortality rate was recorded for insects fed on T1303 flour disks compared to disks obtained from yellow wheat varieties. These results provide evidence for the antifeedant and toxic effects of anthocyanins present in the T1303 pericarp against the granary weevil. Overall, this study contributes new insights into the mechanisms of host acceptance and food utilization by S. granarius and would be useful to identify antifeedant flavonoids as well as to develop varietal resistance-based strategies against this pest.
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Affiliation(s)
- Ilaria D'Isita
- Department of Agricultural Sciences, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71122, Foggia, Italy
| | - Antonella Marta Di Palma
- Department of Agricultural Sciences, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71122, Foggia, Italy
| | - Pasquale De Vita
- CREA Research Centre for Cereal and Industrial Crops, 71122, Foggia, Italy
| | - Giacinto Salvatore Germinara
- Department of Agricultural Sciences, Food, Natural Resources and Engineering (DAFNE), University of Foggia, Via Napoli 25, 71122, Foggia, Italy.
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Rosa JSDELA, Martnez JJ, Benites P, Hernndez-Cumplido J, Zaldvar-Rivern A. A new species of Bracon (Braconidae: Braconinae) from central Mexico, probable parasitoid of a weevil that feeds on roots of Argemone ochroleuca Sweet (Papaveraceae). Zootaxa 2023; 5336:590-596. [PMID: 38221073 DOI: 10.11646/zootaxa.5336.4.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Indexed: 01/16/2024]
Abstract
A new species of the braconine genus Bracon (subgenus Bracon), B. hidalguensis sp. nov., is described from the locality of Tasquillo in the state of Hidalgo, central Mexico. The new species was reared from roots of Argemone ochroleuca Sweet (Papaveraceae), where specimens of the weevil species Conotrachelus leucophaeus (Champion) (Curculionidae) were also obtained and thus probably it represents its host. The new Bracon species was characterised molecularly with DNA barcoding (COI) and a fragment of the variable D23 region of the nuclear ribosomal 28S gene.
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Affiliation(s)
- Jaime Solis-DE LA Rosa
- Laboratorio de Interacciones y Procesos Ecolgicos; Departamento de Ecologa y Recursos Naturales; Facultad de Ciencias; Universidad Nacional Autnoma de Mxico.
| | - Juan Jos Martnez
- Facultad de Ciencias Exactas y Naturales; Universidad de La Pampa; Santa Rosa; Argentina. Consejo Nacional de Investigaciones Cientficas y Tcnicas (CONICET); Argentina.
| | - Pilar Benites
- Coleccin Nacional de Insectos; Instituto de Biologa; Universidad Nacional Autnoma de Mxico; 3er Circuito Exterior s/n; Cd. Universitaria; Copilco; Coyoacn; Ciudad de Mxico; Mexico.
| | - Johnattan Hernndez-Cumplido
- Laboratorio de Interacciones y Procesos Ecolgicos; Departamento de Ecologa y Recursos Naturales; Facultad de Ciencias; Universidad Nacional Autnoma de Mxico.
| | - Alejandro Zaldvar-Rivern
- Coleccin Nacional de Insectos; Instituto de Biologa; Universidad Nacional Autnoma de Mxico; 3er Circuito Exterior s/n; Cd. Universitaria; Copilco; Coyoacn; Ciudad de Mxico; Mexico.
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20
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Sun X, Lu G, Sun R, Li Y, Sun S, Gao L. An accurate, efficient, and economical identification technology for black twig borer based on species-specific cytochrome C oxidase subunit I PCR assay. J Econ Entomol 2023; 116:1372-1378. [PMID: 37366322 DOI: 10.1093/jee/toad119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 04/11/2023] [Accepted: 06/06/2023] [Indexed: 06/28/2023]
Abstract
Xylosandrus compactus (Eichhoff) (Coleoptera: Curculionidae, Scolytinae) is a worldwide invasive species that causes huge economic loss and environmental damage in many countries. Traditional morphological characteristics make it hard to identify scolytines due to their tiny size. Besides, the intercepted insect samples are incomplete, and the limitation of insect (larvae and pupae) morphology makes morphological identification more difficult. The majority of the damage is caused by adults and fungi that serve as nutrition for their larvae. They destroy plant trunks, branches, and twigs, affecting plant transport tissues in both weak and healthy plants. An accurate, efficient, and economical molecular identification technique for X. compactus not restricted by professional taxonomic knowledge is necessary. In the present study, a molecular identification tool based on the mitochondrial DNA gene, cytochrome C oxidase subunit I (COI) was developed. A species-specific COI (SS-COI) PCR assay was designed to identify X. compactus regardless of the developmental stage. Twelve scolytines commonly found in eastern China, namely Xylosandrus compactus, X. crassiusculus, X. discolor, X. germanus, X. borealis, X. amputates, X. eupatorii, X. mancus, Xyleborinus saxesenii, Euwallacea interjectus, E. fornicatus, and Acanthotomicus suncei, were included in the study. Additionally, specimens of X. compactus from 17 different areas in China, as well as a specimen collected from the United Stated, were also analyzed. Results demonstrated the accuracy and high efficiency of the assay, regardless of the developmental stage or the type of specimen. These features provide a good application prospect for fundamental departments and can be used to prevent the harmful consequences of the spread of X. compactus.
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Affiliation(s)
- Xueting Sun
- Key Laboratory of National Forestry and Grassland Administration on Ecological Landscaping of Challenging Urban Sites; Shanghai Engineering Research Center of Landscaping on Challenging Urban Sites, Shanghai Academy of Landscape Architecture Science and Planning, Shanghai 200232, China
| | - Guangliang Lu
- Key Laboratory of National Forestry and Grassland Administration on Ecological Landscaping of Challenging Urban Sites; Shanghai Engineering Research Center of Landscaping on Challenging Urban Sites, Shanghai Academy of Landscape Architecture Science and Planning, Shanghai 200232, China
| | - Ronghua Sun
- Key Laboratory of National Forestry and Grassland Administration on Ecological Landscaping of Challenging Urban Sites; Shanghai Engineering Research Center of Landscaping on Challenging Urban Sites, Shanghai Academy of Landscape Architecture Science and Planning, Shanghai 200232, China
| | - You Li
- Vector-borne Virus Research Center, Fujian Province Key Laboratory of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian, 350002, China
| | - Shiwei Sun
- Spice Beverage Research Institute, CATAS, Wanning, Hainan 571533, China
| | - Lei Gao
- Key Laboratory of National Forestry and Grassland Administration on Ecological Landscaping of Challenging Urban Sites; Shanghai Engineering Research Center of Landscaping on Challenging Urban Sites, Shanghai Academy of Landscape Architecture Science and Planning, Shanghai 200232, China
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21
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Inwood SN, Skelly J, Guhlin JG, Harrop TWR, Goldson SL, Dearden PK. Chromosome-level genome assemblies of two parasitoid biocontrol wasps reveal the parthenogenesis mechanism and an associated novel virus. BMC Genomics 2023; 24:440. [PMID: 37543591 PMCID: PMC10403939 DOI: 10.1186/s12864-023-09538-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/27/2023] [Indexed: 08/07/2023] Open
Abstract
BACKGROUND Biocontrol is a key technology for the control of pest species. Microctonus parasitoid wasps (Hymenoptera: Braconidae) have been released in Aotearoa New Zealand as biocontrol agents, targeting three different pest weevil species. Despite their value as biocontrol agents, no genome assemblies are currently available for these Microctonus wasps, limiting investigations into key biological differences between the different species and strains. METHODS AND FINDINGS Here we present high-quality genomes for Microctonus hyperodae and Microctonus aethiopoides, assembled with short read sequencing and Hi-C scaffolding. These assemblies have total lengths of 106.7 Mb for M. hyperodae and 129.2 Mb for M. aethiopoides, with scaffold N50 values of 9 Mb and 23 Mb respectively. With these assemblies we investigated differences in reproductive mechanisms, and association with viruses between Microctonus wasps. Meiosis-specific genes are conserved in asexual Microctonus, with in-situ hybridisation validating expression of one of these genes in the ovaries of asexual Microctonus aethiopoides. This implies asexual reproduction in these Microctonus wasps involves meiosis, with the potential for sexual reproduction maintained. Investigation of viral gene content revealed candidate genes that may be involved in virus-like particle production in M. aethiopoides, as well as a novel virus infecting M. hyperodae, for which a complete genome was assembled. CONCLUSION AND SIGNIFICANCE These are the first published genomes for Microctonus wasps which have been deployed as biocontrol agents, in Aotearoa New Zealand. These assemblies will be valuable resources for continued investigation and monitoring of these biocontrol systems. Understanding the biology underpinning Microctonus biocontrol is crucial if we are to maintain its efficacy, or in the case of M. hyperodae to understand what may have influenced the significant decline of biocontrol efficacy. The potential for sexual reproduction in asexual Microctonus is significant given that empirical modelling suggests this asexual reproduction is likely to have contributed to biocontrol decline. Furthermore the identification of a novel virus in M. hyperodae highlights a previously unknown aspect of this biocontrol system, which may contribute to premature mortality of the host pest. These findings have potential to be exploited in future in attempt to increase the effectiveness of M. hyperodae biocontrol.
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Affiliation(s)
- Sarah N Inwood
- Bioprotection Aotearoa and Biochemistry Department, University of Otago, Dunedin, Aotearoa, New Zealand
| | - John Skelly
- Bioprotection Aotearoa and Biochemistry Department, University of Otago, Dunedin, Aotearoa, New Zealand
- Humble Bee Bio, Wellington, Aotearoa, New Zealand
| | - Joseph G Guhlin
- Genomics Aotearoa, University of Otago, Dunedin, Aotearoa, New Zealand
| | - Thomas W R Harrop
- Melbourne Bioinformatics, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Stephen L Goldson
- Biocontrol and Biosecurity Group, AgResearch Limited, Lincoln, Aotearoa, New Zealand
| | - Peter K Dearden
- Bioprotection Aotearoa and Biochemistry Department, University of Otago, Dunedin, Aotearoa, New Zealand.
- Genomics Aotearoa, University of Otago, Dunedin, Aotearoa, New Zealand.
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Cao Y, Yu G, Petrov AV, Li Y, Li T, Tarno H, Cao G, Xu YE, Wang J. A new species of Scolytus Geoffroy (Coleoptera, Curculionidae, Scolytinae) from Yunnan, China. Zootaxa 2023; 5284:185-191. [PMID: 37518742 DOI: 10.11646/zootaxa.5284.1.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Indexed: 08/01/2023]
Abstract
Scolytus unicornis, a new species of Scolytus Geoffroy from Yunnan, China, is described and illustrated. Three DNA barcoding sequences (COI, 28S, CAD) of this species are provided. The new species is distinguished from other Asian Scolytus species by the longitudinal wrinkles on the frons only in the area below the eyes, a large median spine situated in the middle of the ventrite 2 base, and female frons with a slightly raised blunt tubercle above the epistoma.
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Affiliation(s)
- Yufeng Cao
- School of Agricultural Sciences; Jiangxi Agricultural University; Nanchang; Jiangxi; 330045; P. R. China.
| | - Guangyu Yu
- School of Agricultural Sciences; Jiangxi Agricultural University; Nanchang; Jiangxi; 330045; P. R. China.
| | - Alexander V Petrov
- Institute of Forest Science; Russian Academy of Sciences; Uspenskoe; 143030; Moscow oblast; Russia.
| | - You Li
- Fujian Province Key Laboratory of Plant Virology; College of Plant Protection; Fujian Agriculture and Forestry University; Fuzhou; 350002; P. R. China.
| | - Ting Li
- Ganzhou Vocational and Technical College; Ganzhou; 341008; P. R. China.
| | - Hagus Tarno
- School of Agricultural Sciences; Jiangxi Agricultural University; Nanchang; Jiangxi; 330045; P. R. China; Department of Plant Pests and Diseases; Faculty of Agriculture; Universitas Brawijaya; Jl. Veteran; Malang; 65145; Indonesia.
| | - Guanghong Cao
- Administration of Nabanhe National Nature reserve; Xishuangbanna Dai Autonomous Prefecture; Yunnan; 666100; P. R. China.
| | - Y E Xu
- School of Agricultural Sciences; Jiangxi Agricultural University; Nanchang; Jiangxi; 330045; P. R. China.
| | - Jianguo Wang
- School of Agricultural Sciences; Jiangxi Agricultural University; Nanchang; Jiangxi; 330045; P. R. China.
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23
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Jiang L, Li Y, Shi W, Chen W, Ma Z, Feng J, Hashem AS, Wu H. Cloning and expression of the mitochondrial cytochrome c oxidase subunit II gene in Sitophilus zeamais and interaction mechanism with allyl isothiocyanate. Pestic Biochem Physiol 2023; 192:105392. [PMID: 37105630 DOI: 10.1016/j.pestbp.2023.105392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 03/05/2023] [Accepted: 03/10/2023] [Indexed: 06/19/2023]
Abstract
In the United States, allyl isothiocyanate (AITC) has been registered as an insecticide, bactericide, and nematicide. And it has been confirmed that AITC has significant insecticidal activities against four stored product pests including Sitophilus zeamais Mostchulky (Coleoptera: Curculionidae). This study aimed to verify the mechanism of action of AITC on cytochrome c oxidase core subunits II in S. zeamais. Enzyme - catalyzed reactions and Fourier transform infrared spectrometer (FTIR) analysis revealed that the expressed COX II proteins could competitively bind and inhibit the activity of COX II. Furthermore, molecular docking results showed that a sulfur atom of AITC could form a 2.9 Å hydrogen bond with Ile-30, having a binding energy of -2.46 kcal/mol.
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Affiliation(s)
- Linlin Jiang
- College of Plant Protection, Northwest A & F University, Yangling 712100, China
| | - Yue Li
- College of Plant Protection, Northwest A & F University, Yangling 712100, China
| | - Weilin Shi
- College of Plant Protection, Northwest A & F University, Yangling 712100, China
| | - Wei Chen
- College of Plant Protection, Northwest A & F University, Yangling 712100, China
| | - Zhiqing Ma
- College of Plant Protection, Northwest A & F University, Yangling 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi Province 712100, China
| | - Juntao Feng
- College of Plant Protection, Northwest A & F University, Yangling 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi Province 712100, China
| | - Ahmed S Hashem
- Stored Product Pests Research Department, Plant Protection Research Institute Agricultural Research Center Sakha, Kafr El-Sheikh, Egypt
| | - Hua Wu
- College of Plant Protection, Northwest A & F University, Yangling 712100, China; Provincial Center for Bio-Pesticide Engineering, Yangling, Shaanxi Province 712100, China.
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24
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Sana S, Vollhardt I, Kubon K, Rostás M, Scholten S. De novo transcriptome assemblies of five major European oilseed rape insect pests. BMC Genom Data 2023; 24:15. [PMID: 36899327 PMCID: PMC10007812 DOI: 10.1186/s12863-023-01115-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 02/17/2023] [Indexed: 03/12/2023] Open
Abstract
OBJECTIVE Insect pests can cause severe losses in oilseed rape yields across Europe. Genomic and transcriptomic information is very limited for these insects. The aim of our study was to provide transcriptomic resources on several oilseed rape herbivores that will support research into their biology and help develop new methods of sustainable pest management. DATA Transcriptomes for larval stages of five major European pest species were de novo assembled by Trinity assembler. Total number of transcripts ranged from 112,247 for Ceutorhynchus pallidactylus to 225,110 for Ceutorhyncus napi. Intermediate numbers of 140,588, 140,998 and 144,504, were found for Psylliodes chrysocephala, Dasineura brassicae, and Brassicogethes aeneus, respectively. Bench-marking universal single-copy orthologues analyses for each dataset indicated high degree of completeness for all five species. The transcriptomes extend the list of genomic data on insect larvae that constitute major pests of oilseed rape. The data provide information on larval physiology and form a basis to develop highly specific RNA interference-based plant protection.
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Affiliation(s)
- Salma Sana
- Division of Crop Plant Genetics, Department of Crop Science, Georg-August-University Goettingen, Goettingen, Germany
| | - Ines Vollhardt
- Division of Agricultural Entomology, Department of Crop Science, Georg-August-University Goettingen, Goettingen, Germany
| | - Katharina Kubon
- Division of Crop Plant Genetics, Department of Crop Science, Georg-August-University Goettingen, Goettingen, Germany
| | - Michael Rostás
- Division of Agricultural Entomology, Department of Crop Science, Georg-August-University Goettingen, Goettingen, Germany
| | - Stefan Scholten
- Division of Crop Plant Genetics, Department of Crop Science, Georg-August-University Goettingen, Goettingen, Germany.
- Center for integrated Breeding Research (CiBreed), Goettingen, Germany.
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25
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Hong B, Zhai Y, Yang Y, Chang Q, Li G, Zhang F. Identification and sex-specific expression of chemosensory genes in the antennal transcriptomes of Pachyrhinus yasumatsui (Coleoptera: Curculionidae). J Insect Sci 2023; 23:7135657. [PMID: 37083941 PMCID: PMC10120841 DOI: 10.1093/jisesa/iead023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/16/2023] [Accepted: 04/06/2023] [Indexed: 05/03/2023]
Abstract
Pachyrhinus yasumatsui Kono et Morimoto is a major pest of Chinese jujube, which is widespread in northern China and causes severe economic losses in the jujube industry. Chemosensory genes play crucial roles in insect behaviors. Currently, little is known about chemosensory genes in P. yasumatsui. In the present study, antennal transcriptomes of female and male adult P. yasumatsui were annotated. In total, 113 genes involved in chemosensory functions were identified, including 41 odorant receptors, 28 odorant-binding proteins, 16 ionotropic receptors, 15 chemosensory proteins, 9 gustatory receptors, and 4 sensory neuron membrane proteins. Subsequently, the phylogenetic analyses of these olfactory-related proteins in P. yasumatsui were conducted using multiple sequence alignment. Furthermore, sex-specific expression levels of 113 genes were analyzed based on fragments per kilobase of transcript per million mapped reads (FPKM). Then, the quantitative real-time PCR (RT-qPCR) was used to quantify gene expression profiles of 28 P. yasumatsui OBPs (PyasOBPs) and 15 CSPs (PyasCSPs). The results revealed that 20 PyasOBPs and 13 PyasCSPs exhibited significantly higher expression in the antennae than in the bodies, suggesting that they might have functions in olfaction. Moreover, some OBPs and CSPs (PyasOBP6, PyasOBP7, PyasOBP16, PyasOBP21, and PyasCSP4) exhibited female-biased expression, indicating that they might take part in several female-specific behaviors. This study will promote the understanding of olfactory mechanism in P. yasumatsui, and our findings lay the groundwork for developing environmentally friendly pest management measures.
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Affiliation(s)
- Bo Hong
- Bio-Agriculture Institute of Shaanxi, Shaanxi Academy of Sciences, Xi’an 710043, China
| | - Yingyan Zhai
- Bio-Agriculture Institute of Shaanxi, Shaanxi Academy of Sciences, Xi’an 710043, China
| | - Yiwei Yang
- Bio-Agriculture Institute of Shaanxi, Shaanxi Academy of Sciences, Xi’an 710043, China
| | - Qing Chang
- Bio-Agriculture Institute of Shaanxi, Shaanxi Academy of Sciences, Xi’an 710043, China
| | - Guangwei Li
- Shaanxi Province Key Laboratory of Jujube, College of Life Science, Yan’an University, Yan’an 716000, China
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Cohen ZP, Perkin LC, Sim SB, Stahlke AR, Geib SM, Childers AK, Smith TPL, Suh C. Insight into weevil biology from a reference quality genome of the boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae). G3 (Bethesda) 2023; 13:jkac309. [PMID: 36454104 PMCID: PMC9911062 DOI: 10.1093/g3journal/jkac309] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 11/08/2022] [Accepted: 11/12/2022] [Indexed: 12/03/2022]
Abstract
The boll weevil, Anthonomus grandis grandis Boheman, is one of the most historically impactful insects due to its near destruction of the US cotton industry in the early 20th century. Contemporary efforts to manage this insect primarily use pheromone baited traps for detection and organophosphate insecticides for control, but this strategy is not sustainable due to financial and environmental costs. We present a high-quality boll weevil genome assembly, consisting of 306 scaffolds with approximately 24,000 annotated genes, as a first step in the identification of gene targets for novel pest control. Gene content and transposable element distribution are similar to those found in other Curculionidae genomes; however, this is the most contiguous and only assembly reported to date for a member in the species-rich genus Anthonomus. Transcriptome profiles across larval, pupal, and adult life stages led to identification of several genes and gene families that could present targets for novel control strategies.
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Affiliation(s)
- Zachary P Cohen
- Insect Control and Cotton Disease Research Unit, Southern Plains Agricultural Research Center, USDA, Agricultural Research Service, 2771 F and B Road, College Station, TX 77845, USA
| | - Lindsey C Perkin
- Insect Control and Cotton Disease Research Unit, Southern Plains Agricultural Research Center, USDA, Agricultural Research Service, 2771 F and B Road, College Station, TX 77845, USA
| | - Sheina B Sim
- Tropical Crop and Commodity Protection Research Unit, U.S. Pacific Basin Agricultural Research Center, USDA, Agricultural Research Service, 64 Nowelo Street, Hilo, HI 96720, USA
| | - Amanda R Stahlke
- Bee Research Laboratory, Beltsville Agricultural Research Center, USDA, Agricultural Research Service, 10300 Baltimore Avenue, Beltsville, MD 20705, USA
| | - Scott M Geib
- Tropical Crop and Commodity Protection Research Unit, U.S. Pacific Basin Agricultural Research Center, USDA, Agricultural Research Service, 64 Nowelo Street, Hilo, HI 96720, USA
| | - Anna K Childers
- Bee Research Laboratory, Beltsville Agricultural Research Center, USDA, Agricultural Research Service, 10300 Baltimore Avenue, Beltsville, MD 20705, USA
| | - Timothy P L Smith
- Genetics and Breeding Research Unit, U.S. Meat Animal Research Center, USDA, Agricultural Research Service, State Spur 18D, Clay Center, NE 68933, USA
| | - Charles Suh
- Insect Control and Cotton Disease Research Unit, Southern Plains Agricultural Research Center, USDA, Agricultural Research Service, 2771 F and B Road, College Station, TX 77845, USA
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Lechuga-Paredes P, Segura-León OL, Cibrián-Tovar J, Torres-Huerta B, Velázquez-González JC, Cruz-Jaramillo JL. Odorant-Binding and Chemosensory Proteins in Anthonomus eugenii (Coleoptera: Curculionidae) and Their Tissue Expression. Int J Mol Sci 2023; 24:ijms24043406. [PMID: 36834814 PMCID: PMC9961831 DOI: 10.3390/ijms24043406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 02/11/2023] Open
Abstract
The pepper weevil Anthonomus eugenii is one of the most damaging pests to the pepper crop. To offer alternative management strategies to insecticides, several studies have identified the semiochemicals that are involved in the pepper weevil's aggregation and mating behavior; however, there is no information on its perireceptor molecular mechanism, to date. In this study, bioinformatics tools were used to functionally annotate and characterize the A. eugenii head transcriptome and their probable coding proteins. We identified twenty-two transcripts belonging to families related to chemosensory processes, seventeen corresponding to odorant-binding proteins (OBP), and six to chemosensory proteins (CSP). All results matched with closely related Coleoptera: Curculionidae homologous proteins. Likewise, twelve OBP and three CSP transcripts were experimentally characterized by RT-PCR in different female and male tissues. The results by sex and tissue display the different expression patterns of the AeugOBPs and AeugCSPs; some are present in both sexes and all tissues, while others show expressions with higher specificity, which suggests diverse physiological functions in addition to chemo-detection. This study provides information to support the understanding of odor perception in the pepper weevil.
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Affiliation(s)
- Pablo Lechuga-Paredes
- Colegio de Postgraduados, Campus Montecillo, Mexico-Texcoco Highway, Km. 36.5 Montecillo, Texcoco 56230, Mexico
| | - Obdulia Lourdes Segura-León
- Colegio de Postgraduados, Campus Montecillo, Mexico-Texcoco Highway, Km. 36.5 Montecillo, Texcoco 56230, Mexico
- Correspondence: ; Tel.: +52-554-009-3079
| | - Juan Cibrián-Tovar
- Colegio de Postgraduados, Campus Montecillo, Mexico-Texcoco Highway, Km. 36.5 Montecillo, Texcoco 56230, Mexico
| | - Brenda Torres-Huerta
- Colegio de Postgraduados, Campus Montecillo, Mexico-Texcoco Highway, Km. 36.5 Montecillo, Texcoco 56230, Mexico
| | | | - José Luis Cruz-Jaramillo
- Bioinformatics and Technologies Department, Solaria Biodata, Antonio Ortega 817, Benito Juárez, Mexico City 03100, Mexico
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Yu G, Lai S, Liao S, Cao Y, Li W, Long C, Tarno H, Wang J. Complete Mitochondrial Genome of Scolytoplatypodini Species (Coleoptera: Curculionidae: Scolytinae) and Phylogenetic Implications. Genes (Basel) 2023; 14:162. [PMID: 36672903 PMCID: PMC9859420 DOI: 10.3390/genes14010162] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/02/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
The complete mitochondrial genomes (mitogenomes) of beetles in the tribe Scolytoplatypodini (genus Scolytoplatypus) were sequenced and annotated. These included Scolytoplatypus raja (15,324 bp), Scolytoplatypus sinensis (15,394 bp), Scolytoplatypus skyliuae (15,167 bp), and Scolytoplatypus wugongshanensis (15,267 bp). The four mitogenomes contained 37 typical genes, including 13 protein-coding genes (PCGs), 22 transfer RNA genes (tRNAs), and 2 ribosomal RNA genes (rRNAs). The gene orientation and arrangement of the four mitogenomes were similar to other Coleoptera mitogenomes. PCGs mostly started with ATN and terminated with TAA. The Ka/Ks ratio of 13 PCGs in the four species revealed that cox1 had the slowest evolutionary rate and atp8 and nad6 had a higher evolutionary rate. All tRNAs had typical cloverleaf secondary structures, but trnS1 lacked dihydrouridine arm. Partial tRNAs lost the discriminator nucleotide. The trnY did not possess the discriminator nucleotide and also lost three bases, showing a special amino-acyl arm. Bayesian inference (BI) and maximum likelihood (ML) methods were conducted for phylogenetic analyses using 13 PCGs. Scolytoplatypodini was clustered with Hylurgini and Hylastini, and the monophyly of Scolytoplatypodini was supported. The four newly sequenced mitogenomes increase understanding of the evolutionary relationships of Scolytoplatypodini and other Scolytinae species.
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Affiliation(s)
- Guangyu Yu
- Laboratory of Invasion Biology, School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 340045, China
| | - Shengchang Lai
- Laboratory of Invasion Biology, School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 340045, China
- Forest Protection, Forestry College, Nanjing Forest University, Nanjing 210036, China
| | - Song Liao
- Laboratory of Invasion Biology, School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 340045, China
| | - Yufeng Cao
- Laboratory of Invasion Biology, School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 340045, China
| | - Weijun Li
- Laboratory of Invasion Biology, School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 340045, China
| | - Chengpeng Long
- College of Forestry and Biotechnology, Zhejiang Agricultural and Forestry University, Lin’an 311300, China
| | - Hagus Tarno
- Laboratory of Invasion Biology, School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 340045, China
- Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Brawijaya, Jl. Veteran, Malang 65145, Indonesia
| | - Jianguo Wang
- Laboratory of Invasion Biology, School of Agricultural Sciences, Jiangxi Agricultural University, Nanchang 340045, China
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Li Z, Huang S, He X, Ma H, Zhou X, Lin H, Zhang S. Specific Enriched Acinetobacter in Camellia Weevil Gut Facilitate the Degradation of Tea Saponin: Inferred from Bacterial Genomic and Transcriptomic Analyses. Microbiol Spectr 2022; 10:e0227222. [PMID: 36413019 PMCID: PMC9769793 DOI: 10.1128/spectrum.02272-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 10/31/2022] [Indexed: 11/24/2022] Open
Abstract
Beneficial gut bacteria can enhance herbivorous arthropod adaptation to plant secondary compounds (PSMs), and specialist herbivores provide excellent examples of this. Tea saponin (TS) of Camellia oleifera is triterpenoids toxic to seed-feeding weevil pest, Curculio chinensis (CW). Previous studies disclosed that Acinetobacter, which was specific enriched in the CW's gut, was involved in helping CW evade TS toxicity of C. oleifera. However, it is still not clear whether Acinetobacter is associated with other anti-insect compounds, and the molecular mechanism of Acinetobacter degradation of TS has not been clarified. To address these questions, we explored the relationship between host plant toxin content and Acinetobacter of CW gut bacteria. Results demonstrated that TS content significantly affected the CW gut microbiome structure and enriched bacteria functional for TS degradation. We further isolated Acinetobacter strain and conducted its genome and transcriptome analyses for bacterial characterization and investigation on its role in TS degradation. Biological tests were carried out to verify the ability of the functional bacterium within CW larvae to detoxify TS. Our results showed that TS-degrading bacteria strain (Acinetobacter sp. AS23) genome contains 47 genes relating to triterpenoids degradation. The AS23 strain improved the survival rate of CW larvae, and the steroid degradation pathway could be the key one for AS23 to degrade TS. This study provides the direct evidence that gut bacteria mediate adaptation of herbivorous insects to phytochemical resistance. IMPORTANCE Microorganism is directly exposed to the plant toxin environment and play a crucial third party in herbivores gut. Although previous studies have proved the existence of gut bacteria that help CWs degrade TS, the specific core flora and its function have not been explored. In this study, we investigated the correlation between the larva gut microbiome and plant secondary metabolites. Acinetobacter genus was the target flora related to TS degradation. There were many terpenoids genes in Acinetobacter sp. AS23 genome. Results of transcriptome analysis and biological tests suggested that steroid degradation pathway be the key pathway of AS23 to degrade TS. This study not only provides direct evidence that gut microbes mediate the rapid adaptation of herbivorous insects to phytochemical resistance, but also provides a theoretical basis for further research on the molecular mechanism of intestinal bacteria cooperating with pests to adapt to plant toxins.
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Affiliation(s)
- Zikun Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People’s Republic of China
- College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, People’s Republic of China
| | - Suya Huang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People’s Republic of China
- College of Horticulture Science, Zhejiang A & F University, Hangzhou, People’s Republic of China
| | - Xinghua He
- Zhoushan Academy of Forestry Science, Zhoushan, People’s Republic of China
| | - Haijie Ma
- College of Horticulture Science, Zhejiang A & F University, Hangzhou, People’s Republic of China
| | - Xudong Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People’s Republic of China
- College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, People’s Republic of China
| | - Haiping Lin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People’s Republic of China
- College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, People’s Republic of China
| | - Shouke Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People’s Republic of China
- College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou, People’s Republic of China
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Klápště J, Jaquish B, Porth I. Building resiliency in conifer forests: Interior spruce crosses among weevil resistant and susceptible parents produce hybrids appropriate for multi-trait selection. PLoS One 2022; 17:e0263488. [PMID: 36459506 PMCID: PMC9718410 DOI: 10.1371/journal.pone.0263488] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 11/08/2022] [Indexed: 12/03/2022] Open
Abstract
Tree planting programs now need to consider climate change increasingly, therefore, the resistance to pests plays an essential role in enabling tree adaptation to new ranges through tree population movement. The weevil Pissodes strobi (Peck) is a major pest of spruces and substantially reduces lumber quality. We revisited a large Interior spruce provenance/progeny trial (2,964 genotypes, 42 families) of varying susceptibility, established in British Columbia. We employed multivariate mixed linear models to estimate covariances between, and genetic control of, juvenile height growth and resistance traits. We performed linear regressions and ordinal logistic regressions to test for impact of parental origin on growth and susceptibility to the pest, respectively. A significant environmental component affected the correlations between resistance and height, with outcomes dependent on families. Parents sourced from above 950 m a.s.l. elevation negatively influenced host resistance to attacks, probably due to higher P. engelmannii proportion. For the genetic contribution of parents sourced from above 1,200 m a.s.l., however, we found less attack severity, probably due to a marked mismatch in phenologies. This clearly highlights that interspecific hybrid status might be a good predictor for weevil attacks and delineates the boundaries of successful spruce population movement. Families resulting from crossing susceptible parents generally showed fast-growing trees were the most affected by weevil attacks. Such results indicate that interspecific 'hybrids' with a higher P. glauca ancestry might be genetically better equipped with an optimized resource allocation between defence and growth and might provide the solution for concurrent improvement in resistance against weevil attacks, whilst maintaining tree productivity.
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Affiliation(s)
- Jaroslav Klápště
- Scion (New Zealand Forest Research Institute Ltd.), Rotorua, New Zealand
| | - Barry Jaquish
- BC Ministry of Forests, Lands, Natural Resource Operations and Rural Development, Vernon, B.C., Canada
| | - Ilga Porth
- Department of Wood and Forest Sciences, Université Laval, Québec City, Québec, Canada
- Institute for System and Integrated Biology (IBIS), Université Laval, Québec City, Québec, Canada
- Centre for Forest Research, Université Laval, Québec City, Québec, Canada
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Discovery of genes conferring host resistance to sweet potato weevils. Nat Plants 2022; 8:1341-2. [PMID: 36401002 DOI: 10.1038/s41477-022-01273-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
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Liu X, Wang Y, Zhu H, Mei G, Liao Y, Rao S, Li S, Chen A, Liu H, Zeng L, Xiao Y, Li X, Yang Z, Hou X. Natural allelic variation confers high resistance to sweet potato weevils in sweet potato. Nat Plants 2022; 8:1233-1244. [PMID: 36376755 DOI: 10.1038/s41477-022-01272-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 09/10/2022] [Indexed: 06/16/2023]
Abstract
Sweet potato (Ipomoea batatas L.) is a major root crop worldwide. Sweet potato weevils (SPWs) pose one of the most significant challenges to sweet potato production in tropical and subtropical regions, causing deleterious economic and environmental effects. Characterizing the mechanisms underlying natural resistance to SPWs is therefore crucial; however, the genetic basis of host SPW resistance (SPWR) remains unclear. Here we obtained two sweet potato germplasm with high SPWR and, by map-based cloning, revealed two major SPW-resistant genes-SPWR1 and SPWR2-that are important regulators of natural defence against SPWs. The SPW-induced WRKY transcriptional factor SPWR1 directly activates the expression of SPWR2, and SPWR2, the conserved dehydroquinate synthase, promotes the accumulation of quinate derivative metabolites that confer SPWR in sweet potato. Generally, our results provide new insights into the molecular mechanism underlying sweet potato-SPW interactions and will aid future efforts to achieve eco-friendly SPW management.
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Affiliation(s)
- Xu Liu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yaru Wang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Hongbo Zhu
- College of Coastal Agriculture Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Guoguo Mei
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yinyin Liao
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
| | - Shunfa Rao
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
| | - Shuquan Li
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ao Chen
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Hongjie Liu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lanting Zeng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yangyang Xiao
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoming Li
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ziyin Yang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xingliang Hou
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China.
- University of Chinese Academy of Sciences, Beijing, China.
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Rathnayaka Gamage SI, Kaewwongwal A, Laosatit K, Yimram T, Lin Y, Chen X, Nakazono M, Somta P. Tandemly duplicated genes encoding polygalacturonase inhibitors are associated with bruchid (Callosobruchus chinensis) resistance in moth bean (Vigna aconitifolia). Plant Sci 2022; 323:111402. [PMID: 35905896 DOI: 10.1016/j.plantsci.2022.111402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
Bruchids are stored-grain insect pests responsible for serious seed loss in legume crops. A previous study using an F2 population (F2OA) derived from a cross between wild moth-bean (Vigna aconitifolia [Jacq.] Maréchal) accession TN67 (resistant) and cultivated moth-bean accession ICPMO056 (susceptible) revealed that resistance to the azuki bean weevil (Callosobruchus chinensis L.) in TN67 was regulated by a single gene located in the major quantitative trait locus-qVacBrc2.1. In this study, qVacBrc2.1 was finely mapped and candidate genes in this locus were identified using F2OA and another large F2 population (F2NB) derived from the cross mentioned previously. In contrast to the previous study, segregation analysis in the F2NB population revealed that resistance against this pest was controlled by two genes. Furthermore, the addition of novel markers to qVacBrc2.1 and reanalysis of the QTL in the F2OA population demonstrated that qVacBrc2.1 constituted two linked QTLs-qVacBrc2.1-A and qVacBrc2.1-B. The presence of qVacBrc2.1-B was verified using the population F2NB. Comparative genomics using three Vigna spp. strongly suggested the presence of two tandemly duplicated genes, VacPGIP1 and VacPGIP2, which encoded polygalacturonase inhibitors (polygalacturonase-inhibiting proteins) as the candidates for conferring resistance, but only VacPGIP1 could be successfully cloned and sequenced. The alignment of VacPGIP1 coding sequences of TN67 and ICPMO056 revealed eight single nucleotide polymorphisms, three of which altered the amino-acid sequence of the predicted domains of polygalacturonase inhibitors in ICPMO056. Overall, these findings indicate that VacPGIP1 and VacPGIP2 regulated C. chinensis resistance in TN67.
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Affiliation(s)
- Shyali Iroshani Rathnayaka Gamage
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Kamphaeng Saen, Nakhon Pathom 73140, Thailand; Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Anochar Kaewwongwal
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
| | - Kularb Laosatit
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
| | - Tarika Yimram
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Kamphaeng Saen, Nakhon Pathom 73140, Thailand
| | - Yun Lin
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xin Chen
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Mikio Nakazono
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Prakit Somta
- Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng Saen Campus, Kamphaeng Saen, Nakhon Pathom 73140, Thailand.
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de Moura SM, Freitas EO, Ribeiro TP, Paes-de-Melo B, Arraes FBM, Macedo LLP, Paixão JFR, Lourenço-Tessutti IT, Artico S, da Cunha Valença D, Silva MCM, de Oliveira AC, Alves-Ferreira M, Grossi-de-Sa MF. Discovery and functional characterization of novel cotton promoters with potential application to pest control. Plant Cell Rep 2022; 41:1589-1601. [PMID: 35665839 DOI: 10.1007/s00299-022-02880-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 04/28/2022] [Indexed: 06/15/2023]
Abstract
pGhERF105 and pGhNc-HARBI1 promoters are highly responsive to CBW infestation and exhibit strong activity in vegetative and reproductive tissues, increasing their potential application in GM crop plants for pest control. The main challenge to cotton (Gossypium hirsutum) crop productivity is the constant attack of several pests, including the cotton boll weevil (CBW, Anthonomus grandis), which uses cotton floral buds for feeding and egg-laying. The endophytic nature of the early developmental stages of CBW makes conventional pesticide-based control poorly efficient. Most biotechnological assets used for pest control are based on Bacillus thurigiensis insecticidal Cry toxins or the silencing of insect-pest essential genes using RNA-interference technology. However, suitable plant promoter sequences are required to efficiently drive insecticidal molecules to the target plant tissue. This study selected the Ethylene Responsive Factor 105 (GhERF105) and Harbinger transposase-derived nuclease (GhNc-HARBI1) genes based on available transcriptome-wide data from cotton plants infested by CBW larvae. The GhERF105 and GhNc-HARBI1 genes showed induction kinetics from 2 to 96 h under CBW's infestation in cotton floral buds, uncovering the potential application of their promoters. Therefore, the promoter regions (1,500 base pairs) were assessed and characterized using Arabidopsis thaliana transgenic plants. The pGhERF105 and pGhNc-HARBI1 promoters showed strong activity in plant vegetative (leaves and roots) and reproductive (flowers and fruits) tissues, encompassing higher GUS transcriptional activity than the viral-constitutive Cauliflower Mosaic Virus 35S promoter (pCaMV35S). Notably, pGhERF105 and pGhNc-HARBI1 promoters demonstrated more efficiency in driving reporter genes in flowers than other previously characterized cotton flower-specific promoters. Overall, the present study provides a new set of cotton promoters suitable for biotechnological application in cotton plants for pest resistance.
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Affiliation(s)
- Stéfanie Menezes de Moura
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
| | - Elinea Oliveira Freitas
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
- Federal University of Brasilia (UnB), Brasília, DF, Brazil
| | - Thuanne Pires Ribeiro
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
- Federal University of Brasilia (UnB), Brasília, DF, Brazil
| | - Bruno Paes-de-Melo
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
| | - Fabrício B M Arraes
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
- Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Leonardo Lima Pepino Macedo
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
| | - Joaquin F R Paixão
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
| | - Isabela T Lourenço-Tessutti
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
| | - Sinara Artico
- Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - David da Cunha Valença
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
| | - Maria Cristina Mattar Silva
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
| | - Antonio C de Oliveira
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
- Federal University of Pelotas (UFPEL), Pelotas, RS, Brazil
| | - Marcio Alves-Ferreira
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil
- Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Maria Fatima Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, PqEB, Final W5 North, PO Box 02372, Brasília, DF, 70770-917, Brazil.
- National Institute of Science and Technology, INCT PlantStress Biotech, EMBRAPA, Brasília, DF, Brazil.
- Catholic University of Brasília (UCB), Brasília, DF, Brazil.
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Lei J, Mei Y, Jin X, Liu Y, Wang L, Chai S, Cheng X, Yang X. Identification of miRNAs in Response to Sweet Potato Weevil (Cylas formicarius) Infection by sRNA Sequencing. Genes (Basel) 2022; 13:genes13060981. [PMID: 35741742 PMCID: PMC9222952 DOI: 10.3390/genes13060981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 12/14/2022] Open
Abstract
The sweet potato weevil (Cylas formicarius) is an important pest in the growing and storage of sweet potatoes. It is a common pest in the sweet potato production areas of southern China, causing serious harm to the development of the sweet potato industry. For the existing cultivars in China and abroad, there is no sweet potato variety with complete resistance to the sweet potato weevil. Thus, understanding the regulation mechanisms of sweet potato weevil resistance is the prerequisite for cultivating sweet potato varieties that are resistant to the sweet potato weevil. However, very little progress has been made in this field. In this study, we inoculated adult sweet potato weevils into sweet potato tubers. The infected sweet potato tubers were collected at 0, 24, 48, and 72 h. Then, a miRNA library was constructed for Eshu 6 and Guang 87 sweet potato tubers infected for different lengths of time. A total of 407 known miRNAs and 298 novel miRNAs were identified. A total of 174 differentially expressed miRNAs were screened out from the known miRNAs, and 247 differentially expressed miRNAs were screened out from the new miRNAs. Moreover, the targets of the differentially expressed miRNAs were predicted and their network was further investigated through GO analysis and KEGG analysis using our previous transcriptome data. More importantly, we screened 15 miRNAs and their target genes for qRT-PCR verification to confirm the reliability of the high-throughput sequencing data, which indicated that these miRNAs were detected and most of the expression results were consistent with the sequencing results. These results provide theoretical and data-based resources for the identification of miRNAs in response to sweet potato weevil infection and an analysis of the molecular regulatory mechanisms involved in insect resistance.
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Affiliation(s)
- Jian Lei
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (J.L.); (Y.M.); (X.J.); (Y.L.); (L.W.); (S.C.); (X.C.)
| | - Yuqin Mei
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (J.L.); (Y.M.); (X.J.); (Y.L.); (L.W.); (S.C.); (X.C.)
- College of Horticulture, Hainan University, Haikou 570228, China
| | - Xiaojie Jin
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (J.L.); (Y.M.); (X.J.); (Y.L.); (L.W.); (S.C.); (X.C.)
| | - Yi Liu
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (J.L.); (Y.M.); (X.J.); (Y.L.); (L.W.); (S.C.); (X.C.)
- Yangtze University, Jingzhou 434022, China
| | - Lianjun Wang
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (J.L.); (Y.M.); (X.J.); (Y.L.); (L.W.); (S.C.); (X.C.)
| | - Shasha Chai
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (J.L.); (Y.M.); (X.J.); (Y.L.); (L.W.); (S.C.); (X.C.)
| | - Xianliang Cheng
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (J.L.); (Y.M.); (X.J.); (Y.L.); (L.W.); (S.C.); (X.C.)
| | - Xinsun Yang
- Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (J.L.); (Y.M.); (X.J.); (Y.L.); (L.W.); (S.C.); (X.C.)
- Correspondence:
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Milton A, Muhanguzi D, Male A, Kajubi A, Buah S, Kubiriba J, Tumuhimbise R. Analysis of Genetic Diversity of Banana Weevils (Cosmopolites sordidus) (Coleoptera: Curculionidae) Using Transcriptome-Derived Simple Sequence Repeat Markers. J Econ Entomol 2022; 115:637-646. [PMID: 35021224 DOI: 10.1093/jee/toab213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Indexed: 06/14/2023]
Abstract
The banana weevil, Cosmopolites sordidus (Germar) (Coleoptera: Curculionidae) is an economically important insect pest of bananas. It causes up to 100% yield losses and substantial lifespan reduction in bananas. Advances in genomics, proteomics, and sequencing technologies have provided powerful pathways to genotyping disastrous pests such as C. sordidus. However, such technologies are often not available to the majority of rural subtropical African banana growers and pest control managers. This study was therefore motivated by the need to create cheap and easily accessible C. sordidus genotyping methods that could be deployed by banana pest control managers to the benefit of C. sordidus control programs in the tropics where such advanced technologies are not readily accessible. We used an in-house C. sordidus transcriptome from the an-ongoing study from which we mined an array of simple sequence repeat (SSR) markers. Of these, six highly polymorphic transcriptome-derived SSR markers were used to successfully genotype within and among banana weevil population genetic diversity of 12 C. sordidus populations collected from four banana-growing agro-ecological zones (AEZs) in Uganda. The developed transcriptome-derived SSR markers can be used by researchers in population genetics for characterization of the C. sordidus and identification of new genes that are linked to traits of particular interest. The significant genetic diversity revealed in C. sordidus provides pertinent information for integrated pest management strategies.
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Affiliation(s)
- Ali Milton
- National Agricultural Research Laboratories-Kawanda, Kampala, Uganda
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Dennis Muhanguzi
- College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Allan Male
- International Center for Tropical Agriculture, Kampala, Uganda
| | - Ali Kajubi
- National Agricultural Research Laboratories-Kawanda, Kampala, Uganda
| | - Stephen Buah
- National Agricultural Research Laboratories-Kawanda, Kampala, Uganda
| | - Jerome Kubiriba
- National Agricultural Research Laboratories-Kawanda, Kampala, Uganda
| | - Robooni Tumuhimbise
- Rwebitaba Zonal Agricultural Research and Development Institute, Fort-Portal, Uganda
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Fernández DC, VanLaerhoven SL, Rodríguez-Leyva E, Zhang YM, Labbé R. Population Structure and Genetic Diversity of the Pepper Weevil (Coleoptera: Curculionidae) Using the COI Barcoding Region. J Insect Sci 2022; 22:25. [PMID: 35220423 PMCID: PMC8882256 DOI: 10.1093/jisesa/ieac012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 06/14/2023]
Abstract
The pepper weevil Anthonomus eugenii Cano (Coleoptera: Curculionidae) is a pest of economic importance for Capsicum species pepper in North America that attacks the reproductive structures of the plant. The insect is distributed across Mexico, the United States, and the Caribbean, and is occasionally found during the pepper growing season in southern Ontario, Canada. Continuous spread of the insect to new areas is partially the result of global pepper trade. Here, we describe the genetic diversity of the pepper weevil using the mitochondrial COI barcoding region across most of its geographic range. In this study, 44 (H1-H44) highly similar haplotypes were identified, the greatest number of haplotypes and haplotype diversity were observed among specimens from its native Mexico, followed by specimens from the United States. Unlike Mexico, a low haplotype diversity was found among specimens from Canada, the Dominican Republic, Italy, and the Netherlands. Out of these 44 haplotypes, 29 are reported for the first time. Haplotype diversity in the Canadian population suggests either multiple and continuous introductions of the pepper weevil into this area or a single introduction of genetically diverse individuals. We discuss the importance of such population genetic data in tailoring pepper weevil management programs, using Canada as an example.
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Affiliation(s)
- D Catalina Fernández
- Department of Integrative Biology, University of Windsor, 401 Sunset Avenue, Windsor, Ontario, N9B 3P4, Canada
- Systematic Entomology Laboratory, USDA-ARS, c/o National Museum of Natural History, Washington, District of Columbia, USA
| | - Sherah L VanLaerhoven
- Department of Integrative Biology, University of Windsor, 401 Sunset Avenue, Windsor, Ontario, N9B 3P4, Canada
| | - Esteban Rodríguez-Leyva
- Colegio de Postgraduados, Posgrado en Fitosanidad, Montecillo, 56100, Texcoco, Estado de Mexico, Mexico
| | - Y Miles Zhang
- Systematic Entomology Laboratory, USDA-ARS, c/o National Museum of Natural History, Washington, District of Columbia, USA
| | - Roselyne Labbé
- Agriculture and Agri-Food Canada, Harrow Research and Development Centre, 2585, Essex County Road 20, Harrow, Ontario, N0R 1G0, Canada
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Wang L, Xu D, Huang Y, Zhou H, Liu W, Cong S, Wang J, Li W, Wan P. Mutation in the Cadherin Gene Is a Key Factor for Pink Bollworm Resistance to Bt Cotton in China. Toxins (Basel) 2022; 14:toxins14010023. [PMID: 35051000 PMCID: PMC8777804 DOI: 10.3390/toxins14010023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 02/04/2023] Open
Abstract
Transgenic crops producing Bacillus thuringiensis (Bt) toxins are widely planted for insect control, but their efficacy may decrease as insects evolve resistance. Understanding the genetic basis of insect resistance is essential for developing an integrated strategy of resistance management. To understand the genetic basis of resistance in pink bollworm (Pectinophora gossypiella) to Bt cotton in the Yangtze River Valley of China, we conducted an F2 screening for alleles associated with resistance to the Bt (Cry1Ac) protein for the first time. A total of 145 valid single-paired lines were screened, among which seven lines were found to carry resistance alleles. All field parents in those seven lines carried recessive resistance alleles at the cadherin locus, including three known alleles, r1, r13 and r15, and two novel alleles, r19 and r20. The overall frequency of resistance alleles in 145 lines was 0.0241 (95% CI: 0.0106-0.0512). These results demonstrated that resistance was rare and that recessive mutation in the cadherin gene was the primary mechanism of pink bollworm resistance to Bt cotton in the Yangtze River Valley of China, which will provide a scientific basis for implementing targeted resistance management statics of pink bollworm in this region.
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Affiliation(s)
- Ling Wang
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (L.W.); (D.X.); (S.C.); (J.W.); (W.L.)
| | - Dong Xu
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (L.W.); (D.X.); (S.C.); (J.W.); (W.L.)
| | - Yunxin Huang
- School of Resource and Environmental Sciences, Hubei University, Wuhan 430062, China;
| | - Huazhong Zhou
- General Station of Plant Protection, Hubei Province, Wuhan 430070, China; (H.Z.); (W.L.)
| | - Weiguo Liu
- General Station of Plant Protection, Hubei Province, Wuhan 430070, China; (H.Z.); (W.L.)
| | - Shengbo Cong
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (L.W.); (D.X.); (S.C.); (J.W.); (W.L.)
| | - Jintao Wang
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (L.W.); (D.X.); (S.C.); (J.W.); (W.L.)
| | - Wenjing Li
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (L.W.); (D.X.); (S.C.); (J.W.); (W.L.)
| | - Peng Wan
- Key Laboratory of Integrated Pest Management on Crops in Central China, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Crop Disease, Insect Pests and Weeds Control, Institute of Plant Protection and Soil Fertilizer, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (L.W.); (D.X.); (S.C.); (J.W.); (W.L.)
- Correspondence:
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Ramakrishnan R, Hradecký J, Roy A, Kalinová B, Mendezes RC, Synek J, Bláha J, Svatoš A, Jirošová A. Metabolomics and transcriptomics of pheromone biosynthesis in an aggressive forest pest Ips typographus. Insect Biochem Mol Biol 2022; 140:103680. [PMID: 34808354 DOI: 10.1016/j.ibmb.2021.103680] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/08/2021] [Accepted: 11/05/2021] [Indexed: 06/13/2023]
Abstract
Eurasian spruce bark beetle, Ips typographus, is a destructive pest in spruce forests. The ability of I. typographus to colonise host trees depends on its massive aggregation behaviour mediated by aggregation pheromones, consisting of 2-methyl-3-buten-2-ol and cis-verbenol. Other biologically active compounds such as ipsdienol and verbenone have also been detected in the beetle. Biosynthesis of 2-methyl-3-buten-2-ol and ipsdienol de novo from mevalonate and that of cis-verbenol from α-pinene sequestrated from the host have been reported in preliminary studies. However, knowledge on the molecular mechanisms underlying pheromone biosynthesis in this pest is currently limited. In this study, we performed metabolomic and differential gene expression (DGE) analysis for the pheromone-producing life stages of I. typographus. The highest amounts of 2-methyl-3-buten-2-ol (238 ng/gut) and cis-verbenol (23 ng/gut) were found in the fed male gut (colonisation stage) and the immature male gut (early stage), respectively. We also determined the amount of verbenyl oleate (the possible storage form of cis-verbenol), a monoterpenyl fatty acid ester, to be approximately 1604 ng/mg in the immature stage in the beetle body. DGE analysis revealed possible candidate genes involved in the biosynthesis of the quantified pheromones and related compounds. A novel hemiterpene-synthesising candidate isoprenyl-di-phosphate synthase Ityp09271 gene proposed for 2-methyl-3-buten-2-ol synthesis was found to be highly expressed only in the fed male beetle gut. Putative cytochrome P450 genes involved in cis/trans-verbenol synthesis and an esterase gene Ityp11977, which could regulate verbenyl oleate synthesis, were identified in the immature male gut. Our findings from the molecular analysis of pheromone-producing gene families are the first such results reported for I. typographus. With further characterisation of the identified genes, we can develop novel strategies to disrupt the aggregation behaviour of I. typographus and thereby prevent vegetation loss.
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Affiliation(s)
- Rajarajan Ramakrishnan
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Czech Republic
| | - Jaromír Hradecký
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Czech Republic
| | - Amit Roy
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Czech Republic
| | - Blanka Kalinová
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Czech Republic
| | - Rya C Mendezes
- Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Jiri Synek
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Czech Republic
| | - Jaromír Bláha
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Czech Republic
| | - Aleš Svatoš
- Max Planck Institute for Chemical Ecology, Jena, Germany; Institute of Organic Chemistry and Biochemistry, the Czech Academy of Sciences, Prague, Czech Republic
| | - Anna Jirošová
- Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Czech Republic.
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Parisot N, Vargas-Chávez C, Goubert C, Baa-Puyoulet P, Balmand S, Beranger L, Blanc C, Bonnamour A, Boulesteix M, Burlet N, Calevro F, Callaerts P, Chancy T, Charles H, Colella S, Da Silva Barbosa A, Dell'Aglio E, Di Genova A, Febvay G, Gabaldón T, Galvão Ferrarini M, Gerber A, Gillet B, Hubley R, Hughes S, Jacquin-Joly E, Maire J, Marcet-Houben M, Masson F, Meslin C, Montagné N, Moya A, Ribeiro de Vasconcelos AT, Richard G, Rosen J, Sagot MF, Smit AFA, Storer JM, Vincent-Monegat C, Vallier A, Vigneron A, Zaidman-Rémy A, Zamoum W, Vieira C, Rebollo R, Latorre A, Heddi A. The transposable element-rich genome of the cereal pest Sitophilus oryzae. BMC Biol 2021; 19:241. [PMID: 34749730 PMCID: PMC8576890 DOI: 10.1186/s12915-021-01158-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/27/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The rice weevil Sitophilus oryzae is one of the most important agricultural pests, causing extensive damage to cereal in fields and to stored grains. S. oryzae has an intracellular symbiotic relationship (endosymbiosis) with the Gram-negative bacterium Sodalis pierantonius and is a valuable model to decipher host-symbiont molecular interactions. RESULTS We sequenced the Sitophilus oryzae genome using a combination of short and long reads to produce the best assembly for a Curculionidae species to date. We show that S. oryzae has undergone successive bursts of transposable element (TE) amplification, representing 72% of the genome. In addition, we show that many TE families are transcriptionally active, and changes in their expression are associated with insect endosymbiotic state. S. oryzae has undergone a high gene expansion rate, when compared to other beetles. Reconstruction of host-symbiont metabolic networks revealed that, despite its recent association with cereal weevils (30 kyear), S. pierantonius relies on the host for several amino acids and nucleotides to survive and to produce vitamins and essential amino acids required for insect development and cuticle biosynthesis. CONCLUSIONS Here we present the genome of an agricultural pest beetle, which may act as a foundation for pest control. In addition, S. oryzae may be a useful model for endosymbiosis, and studying TE evolution and regulation, along with the impact of TEs on eukaryotic genomes.
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Affiliation(s)
- Nicolas Parisot
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Carlos Vargas-Chávez
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
- Institute for Integrative Systems Biology (I2SySBio), Universitat de València and Spanish Research Council (CSIC), València, Spain
- Present Address: Institute of Evolutionary Biology (IBE), CSIC-Universitat Pompeu Fabra, Barcelona, Spain
| | - Clément Goubert
- Laboratoire de Biométrie et Biologie Evolutive, UMR5558, Université Lyon 1, Université Lyon, Villeurbanne, France
- Department of Molecular Biology and Genetics, Cornell University, 526 Campus Rd, Ithaca, New York, 14853, USA
- Present Address: Human Genetics, McGill University, Montreal, QC, Canada
| | | | - Séverine Balmand
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Louis Beranger
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Caroline Blanc
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Aymeric Bonnamour
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Matthieu Boulesteix
- Laboratoire de Biométrie et Biologie Evolutive, UMR5558, Université Lyon 1, Université Lyon, Villeurbanne, France
| | - Nelly Burlet
- Laboratoire de Biométrie et Biologie Evolutive, UMR5558, Université Lyon 1, Université Lyon, Villeurbanne, France
| | - Federica Calevro
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Patrick Callaerts
- Department of Human Genetics, Laboratory of Behavioral and Developmental Genetics, KU Leuven, University of Leuven, B-3000, Leuven, Belgium
| | - Théo Chancy
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Hubert Charles
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
- ERABLE European Team, INRIA, Rhône-Alpes, France
| | - Stefano Colella
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
- Present Address: LSTM, Laboratoire des Symbioses Tropicales et Méditerranéennes, IRD, CIRAD, INRAE, SupAgro, Univ Montpellier, Montpellier, France
| | - André Da Silva Barbosa
- INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université de Paris, Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | - Elisa Dell'Aglio
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Alex Di Genova
- Laboratoire de Biométrie et Biologie Evolutive, UMR5558, Université Lyon 1, Université Lyon, Villeurbanne, France
- ERABLE European Team, INRIA, Rhône-Alpes, France
- Instituto de Ciencias de la Ingeniería, Universidad de O'Higgins, Rancagua, Chile
| | - Gérard Febvay
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Toni Gabaldón
- Life Sciences, Barcelona Supercomputing Centre (BSC-CNS), Barcelona, Spain
- Mechanisms of Disease, Institute for Research in Biomedicine (IRB), Barcelona, Spain
- Institut Catalan de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | | | - Alexandra Gerber
- Laboratório de Bioinformática, Laboratório Nacional de Computação Científica, Petrópolis, Brazil
| | - Benjamin Gillet
- Institut de Génomique Fonctionnelle de Lyon (IGFL), Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS UMR 5242, Lyon, France
| | | | - Sandrine Hughes
- Institut de Génomique Fonctionnelle de Lyon (IGFL), Université de Lyon, Ecole Normale Supérieure de Lyon, CNRS UMR 5242, Lyon, France
| | - Emmanuelle Jacquin-Joly
- INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université de Paris, Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | - Justin Maire
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
- Present Address: School of BioSciences, The University of Melbourne, Parkville, VIC, 3010, Australia
| | | | - Florent Masson
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
- Present Address: Global Health Institute, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Camille Meslin
- INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université de Paris, Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | - Nicolas Montagné
- INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université de Paris, Institute of Ecology and Environmental Sciences of Paris, Versailles, France
| | - Andrés Moya
- Institute for Integrative Systems Biology (I2SySBio), Universitat de València and Spanish Research Council (CSIC), València, Spain
- Foundation for the Promotion of Sanitary and Biomedical Research of Valencian Community (FISABIO), València, Spain
| | | | - Gautier Richard
- IGEPP, INRAE, Institut Agro, Université de Rennes, Domaine de la Motte, 35653, Le Rheu, France
| | - Jeb Rosen
- Institute for Systems Biology, Seattle, WA, USA
| | - Marie-France Sagot
- Laboratoire de Biométrie et Biologie Evolutive, UMR5558, Université Lyon 1, Université Lyon, Villeurbanne, France
- ERABLE European Team, INRIA, Rhône-Alpes, France
| | | | | | | | - Agnès Vallier
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Aurélien Vigneron
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
- Present Address: Department of Evolutionary Ecology, Institute for Organismic and Molecular Evolution, Johannes Gutenberg University, 55128, Mainz, Germany
| | - Anna Zaidman-Rémy
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Waël Zamoum
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France
| | - Cristina Vieira
- Laboratoire de Biométrie et Biologie Evolutive, UMR5558, Université Lyon 1, Université Lyon, Villeurbanne, France.
- ERABLE European Team, INRIA, Rhône-Alpes, France.
| | - Rita Rebollo
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France.
| | - Amparo Latorre
- Institute for Integrative Systems Biology (I2SySBio), Universitat de València and Spanish Research Council (CSIC), València, Spain.
- Foundation for the Promotion of Sanitary and Biomedical Research of Valencian Community (FISABIO), València, Spain.
| | - Abdelaziz Heddi
- Univ Lyon, INSA Lyon, INRAE, BF2I, UMR 203, 69621 Villeurbanne, France.
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Rasool KG, Mehmood K, Tufail M, Husain M, Alwaneen WS, Aldawood AS. Silencing of vitellogenin gene contributes to the promise of controlling red palm weevil, Rhynchophorus ferrugineus (Olivier). Sci Rep 2021; 11:21695. [PMID: 34737372 PMCID: PMC8568968 DOI: 10.1038/s41598-021-01159-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 10/19/2021] [Indexed: 01/09/2023] Open
Abstract
Red palm weevil [Rhynchophorus ferrugineus (Olivier)], is native to South Asia and expanding its distribution range globally. Recent invasions of red palm weevil around the world, including Saudi Arabia, has become a global constraint for the production of palm species. Although, several control measures have been tested, none of them seemed successful against this invasive species. Therefore, we focused on silencing the reproduction control gene vitellogenin (Vg) based on RNA interference (RNAi) strategy for its possible application in the management of R. ferrugineus. The Vg is a major yolk protein precursor critical for oogenesis. To do this, fat body transcriptome of R. ferrugineus female adults was sequenced, which provided partial Vg gene transcript (FPKM 5731.60). A complete RfVg gene transcript of 5504 bp encoding 1787 amino acids was then sequenced using RCAE-PCR strategy and characterized. Phylogenetic analysis suggested that RfVg has closer ancestry to the coleopteran insects. The RfVg-based RNAi significantly suppressed the expressions of Vg gene. The 15, 20 and 25 days post-injection periods suppressed Vg expressions by 95, 96.6 and 99%, respectively. The suppressed Vg expressions resulted in the dramatic failure of Vg protein expression, which caused atrophied ovaries or no oogenesis and ultimately eggs were not hatched. These results suggest that knockdown of Vg gene involved in R. ferrugineus reproduction is a promising target for RNAi-based management of R. ferrugineus.
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Affiliation(s)
- Khawaja G Rasool
- Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Khalid Mehmood
- Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
- Institute of Plant Protection, Muhammad Nawaz Shareef (MNS) University of Agriculture, Multan, 60000, Punjab, Pakistan
| | - Muhammad Tufail
- Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
- Ghazi University, Dera Ghazi Khan, Punjab, Pakistan
| | - Mureed Husain
- Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia.
| | - Waleed S Alwaneen
- National Center for Agricultural Technology (NCAT), King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia
| | - Abdulrahman S Aldawood
- Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
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Sun Y, Jiang Y, Wu H, Xu N, Ma Z, Zhang C. Function of four mitochondrial genes in fumigation lethal mechanisms of Allyl Isothiocyanate against Sitophilus zeamais adults. Pestic Biochem Physiol 2021; 179:104947. [PMID: 34802532 DOI: 10.1016/j.pestbp.2021.104947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 06/12/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
Allyl isothiocyanate (AITC) is a promising alternative to chemical fumigants, and mitochondrial dysfunction has been proposed to play a crucial role in its lethal mechanisms; however, the specific lethal mechanisms of AITC remain unknown. Four mitochondrial electron transport chain genes, nd5, nd6, cox1, and cox5, were selected from adult Sitophilus zeamais and processed with RNA interference experiments. Then, the biochemical and biophysical effects were compared between double-stranded RNA (dsRNA)-mediated insects and wild-type insects after AITC fumigation at the concentration of LC50 values. The bioactivity of AITC against dsnd6-mediated insects increased, while the bioactivity against dcox1-mediated insects decreased. Compared with the wild-type insects, the increase of reactive oxygen species (ROS) levels by AITC in mitochondria from dsnd6-mediated insects increased by 18.95%, while that of dscox1-mediated insects decreased by 27.45%. The effects of AITC on mRNA expression levels of detoxifying enzymes including CAT (down-regulation effect) and CuZnSOD (overexpression effect) partly recovered in the dsnd5-mediated insects, while a greater effect was observed for dscox1-mediated insects. Molecular docking results indicated that ASN511 at the cox1 subunit was the binding site of AITC by one hydrogen bond, with a bond distance of 2.1 Å. These findings provide insight for further applications of AITC and could provide a novel strategy to investigate lethal mechanisms of insecticides.
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Affiliation(s)
- Yang Sun
- Key Laboratory of Agri-Food Safety of Anhui Province, Anhui Agricultural University, No.130 Changjiangxilu, Hefei 230036, China; Research & Development Center of Biorational Pesticide, Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi 712100, China
| | - Yuanjin Jiang
- Key Laboratory of Agri-Food Safety of Anhui Province, Anhui Agricultural University, No.130 Changjiangxilu, Hefei 230036, China
| | - Hua Wu
- Research & Development Center of Biorational Pesticide, Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi 712100, China
| | - Nuo Xu
- Key Laboratory of Agri-Food Safety of Anhui Province, Anhui Agricultural University, No.130 Changjiangxilu, Hefei 230036, China
| | - Zhiqing Ma
- Research & Development Center of Biorational Pesticide, Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Chao Zhang
- Key Laboratory of Agri-Food Safety of Anhui Province, Anhui Agricultural University, No.130 Changjiangxilu, Hefei 230036, China; Research & Development Center of Biorational Pesticide, Northwest Agriculture and Forestry University, No. 3 Taicheng Road, Yangling, Shaanxi 712100, China.
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Rolim GG, Coelho RR, Antonino JD, Arruda LS, Rodrigues AS, Barros EM, Torres JB. Field-evolved resistance to beta-cyfluthrin in the boll weevil: Detection and characterization. Pest Manag Sci 2021; 77:4400-4410. [PMID: 33991055 DOI: 10.1002/ps.6474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/13/2021] [Accepted: 05/14/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Insecticide resistance in arthropods is an inherited trait that has become a major cause of insect pest control failure. Monitoring the level of susceptibility and characterization of the type of resistance of key pest species aims to determine the risk of resistance selection in time to take action to mitigate control failures. Seven populations of the boll weevil, Anthonomus grandis grandis, collected from cotton fields in the Semiarid and Cerrado areas of Brazil, were screened for their resistance to malathion and beta-cyfluthrin, insecticides widely recommended for control of boll weevil and other pests. RESULTS The levels of adult mortality were variable for beta-cyfluthrin (0-82%) but invariant (100%) for malathion. Bioassays of concentration-mortality were used to determine lethal concentrations (LCs) for each insecticide. The LC-values corroborate the lack of resistance to field rates of malathion but high levels of resistance to beta-cyfluthrin from 62.7- to 439.7-fold. Weevils resistant to beta-cyfluthrin were found through genome sequencing to possess a kdr mutation through the L1014F substitution in the voltage gated-sodium channel gene. CONCLUSIONS This study found boll weevil resistance to beta-cyfluthrin to be not mediated by carboxylesterases, but with cross-resistance to DDT and carbaryl, and kdr mutation as the major mechanism of the resistance in our samples. Caution is recommended in further use of beta-cyfluthrin against boll weevil due to potential resistance. Monitoring studies using other boll weevil populations are recommended to determine the geographic pattern and extent of pyrethroid resistance. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Guilherme G Rolim
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
- Instituto Mato-Grossense do Algodão, Cuiabá, Brazil
| | - Roberta R Coelho
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - José D Antonino
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - Lucas S Arruda
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
- Fundação Bahia, Luiz Eduardo Magalhães, Brazil
| | - Alice S Rodrigues
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | | | - Jorge B Torres
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Recife, Brazil
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Powell D, Groβe-Wilde E, Krokene P, Roy A, Chakraborty A, Löfstedt C, Vogel H, Andersson MN, Schlyter F. A highly-contiguous genome assembly of the Eurasian spruce bark beetle, Ips typographus, provides insight into a major forest pest. Commun Biol 2021; 4:1059. [PMID: 34504275 PMCID: PMC8429705 DOI: 10.1038/s42003-021-02602-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 08/25/2021] [Indexed: 02/08/2023] Open
Abstract
Conifer-feeding bark beetles are important herbivores and decomposers in forest ecosystems. These species complete their life cycle in nutritionally poor substrates and some can kill enormous numbers of trees during population outbreaks. The Eurasian spruce bark beetle (Ips typographus) can destroy >100 million m3 of spruce in a single year. We report a 236.8 Mb I. typographus genome assembly using PacBio long-read sequencing. The final phased assembly has a contig N50 of 6.65 Mb in 272 contigs and is predicted to contain 23,923 protein-coding genes. We reveal expanded gene families associated with plant cell wall degradation, including pectinases, aspartyl proteases, and glycosyl hydrolases. This genome sequence from the genus Ips provides timely resources to address questions about the evolutionary biology of the true weevils (Curculionidae), one of the most species-rich animal families. In forests of today, increasingly stressed by global warming, this draft genome may assist in developing pest control strategies to mitigate outbreaks.
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Affiliation(s)
- Daniel Powell
- Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Excellent Team for Mitigation (ETM), Kamýcká 129, Praha 6, Suchdol, Czech Republic
- Department of Biology, Lund University, Lund, Sweden
- Global Change Ecology Research Group, School of Science, Technology and Engineering, University of the Sunshine Coast, Sippy Downs, QLD, Australia
| | - Ewald Groβe-Wilde
- Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Excellent Team for Mitigation (ETM), Kamýcká 129, Praha 6, Suchdol, Czech Republic
| | - Paal Krokene
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Ås, Norway
| | - Amit Roy
- Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Excellent Team for Mitigation (ETM), Kamýcká 129, Praha 6, Suchdol, Czech Republic
| | - Amrita Chakraborty
- Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, EVA 4.0 Unit, Kamýcká 129, Praha 6, Suchdol, Czech Republic
| | | | - Heiko Vogel
- Entomology Department, Max Planck Institute for Chemical Ecology, Jena, Germany
| | | | - Fredrik Schlyter
- Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Excellent Team for Mitigation (ETM), Kamýcká 129, Praha 6, Suchdol, Czech Republic
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Alnarp, Sweden
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Bernaola L, Butterfield TS, Tai TH, Stout MJ. Epicuticular Wax Rice Mutants Show Reduced Resistance to Rice Water Weevil (Coleoptera: Curculionidae) and Fall Armyworm (Lepidoptera: Noctuidae). Environ Entomol 2021; 50:948-957. [PMID: 33899088 PMCID: PMC8359818 DOI: 10.1093/ee/nvab038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Indexed: 06/12/2023]
Abstract
Plant structural traits can act as barriers for herbivore attachment, feeding, and oviposition. In particular, epicuticular waxes (EWs) on the aerial surfaces of many land plants offer protection from biotic and abiotic stresses. In rice (Oryza sativa L.), mutations that reduce EWs have been previously reported. However, whether such mutations affect rice water weevil (Lissorhoptrus oryzophilus Kuschel) and fall armyworm (Spodoptera frugiperda Smith) performance has not been investigated yet. These pests cause significant economic problems in important rice-producing areas of the United States. The aim of our study was to characterize the EWs of EW mutants and wild-type rice plants by gas chromatography-mass spectrometry and compare the resistance of mutant and wild-type plants against rice water weevil and fall armyworm. We hypothesized that mutants with reduced EWs would have weaker resistance to pests than wild-type plants. Three mutant lines (6-1A, 7-17A, and 11-39A) and their wild-type parent (cv. 'Sabine') were used to test this hypothesis. Levels of EWs were significantly lower in mutant lines than in the wild-type, and qualitative differences in EW composition were also observed. Reduction in EWs significantly affected performance of insects in experiments conducted under greenhouse conditions. Experiments with rice water weevils were conducted in arenas in which females were given a choice of the mutants and the wild-type for oviposition. Number of first instars emerging from the three EW mutants (an indication of oviposition preference) was higher on the three EW mutants than on wild-type plants with normal wax levels. Similarly, in no-choice experiments using whole plants or detached leaves, weight gains of armyworms on leaves were higher on the mutant lines than on the wild-type. These results indicate that EW traits are involved in rice resistance to weevils and armyworms. Understanding the plant traits that contribute to resistance to rice pests will be helpful for the development of resistant varieties for reducing pest insect damage.
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Affiliation(s)
- Lina Bernaola
- Department of Entomology, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
| | - Timothy S Butterfield
- United States Department of Agriculture-Agricultural Research Service, Crops Pathology and Genetics Research Unit, Davis, CA 95616, USA
| | - Thomas H Tai
- United States Department of Agriculture-Agricultural Research Service, Crops Pathology and Genetics Research Unit, Davis, CA 95616, USA
- Department of Plant Sciences, University of California, Davis, CA 95616, USA
| | - Michael J Stout
- Department of Entomology, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA
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Sun Y, Fu D, Kang X, Liu B, Ning H, Chen H. Function of mevalonate pathway genes in the synthesis of frontalin in Chinese white pine beetle, Dendroctonus armandi (curculionidae: Scolytinae). Arch Insect Biochem Physiol 2021; 107:e21828. [PMID: 34173689 DOI: 10.1002/arch.21828] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/31/2021] [Accepted: 06/10/2021] [Indexed: 06/13/2023]
Abstract
The Chinese white pine beetle (Dendroctonus armandi Tsai and Li) is a significant pest of pine forests in the Qinling and Bashan Mountains of China. Adult males commonly produce frontalin using precursors synthesized through the mevalonate pathway, which is regulated by juvenile hormone III (JHIII). In this study, the expression levels of mevalonate pathway genes were quantified after phloem feeding and topical application of the JHIII solution. The frontalin was quantified by gas chromatography-mass spectrometry. Both the phloem feeding and JHIII treatments produced an evident upregulation in the male gut, mainly in 3-hydroxy-3-methylglutaryl-CoA synthase (HMGS) and 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR). Moreover, HMGS, HMGR, isopentenyl diphosphate isomerase, and geranyl diphosphate synthase/farnesyl diphosphate synthase were upregulated in fed and JHIII-stimulated males of D. armandi under both conditions (solitary and paired). The expression levels were higher in paired compared to solitary males. Males had higher expression levels compared with females. Correspondingly, the phloem-feeding males produced more frontalin than JHIII-treated males, and the production of frontalin was higher in paired males than in solitary males. The knockdown of mevalonate pathway genes using RNAi in vivo effectively reduced the messenger RNA level of these genes and inhibited the production of frontalin. Among them, the silencing of HMGR or HMGS genes reduced the synthesis of frontalin most significantly.
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Affiliation(s)
- Yaya Sun
- College of Forestry, Northwest A and F University, Yangling, Shaanxi, China
| | - Danyang Fu
- College of Forestry, Northwest A and F University, Yangling, Shaanxi, China
| | - Xiaotong Kang
- College of Forestry, Northwest A and F University, Yangling, Shaanxi, China
| | - Bin Liu
- College of Forestry, Northwest A and F University, Yangling, Shaanxi, China
| | - Hang Ning
- College of Forestry, Northwest A and F University, Yangling, Shaanxi, China
| | - Hui Chen
- College of Forestry, Northwest A and F University, Yangling, Shaanxi, China
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, Guangdong, China
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Van Dam MH, Cabras AA, Henderson JB, Rominger AJ, Pérez Estrada C, Omer AD, Dudchenko O, Lieberman Aiden E, Lam AW. The Easter Egg Weevil (Pachyrhynchus) genome reveals syntenic patterns in Coleoptera across 200 million years of evolution. PLoS Genet 2021; 17:e1009745. [PMID: 34460814 PMCID: PMC8432895 DOI: 10.1371/journal.pgen.1009745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 09/10/2021] [Accepted: 07/27/2021] [Indexed: 01/01/2023] Open
Abstract
Patterns of genomic architecture across insects remain largely undocumented or decoupled from a broader phylogenetic context. For instance, it is unknown whether translocation rates differ between insect orders. We address broad scale patterns of genome architecture across Insecta by examining synteny in a phylogenetic framework from open-source insect genomes. To accomplish this, we add a chromosome level genome to a crucial lineage, Coleoptera. Our assembly of the Pachyrhynchus sulphureomaculatus genome is the first chromosome scale genome for the hyperdiverse Phytophaga lineage and currently the largest insect genome assembled to this scale. The genome is significantly larger than those of other weevils, and this increase in size is caused by repetitive elements. Our results also indicate that, among beetles, there are instances of long-lasting (>200 Ma) localization of genes to a particular chromosome with few translocation events. While some chromosomes have a paucity of translocations, intra-chromosomal synteny was almost absent, with gene order thoroughly shuffled along a chromosome. This large amount of reshuffling within chromosomes with few inter-chromosomal events contrasts with patterns seen in mammals in which the chromosomes tend to exchange larger blocks of material more readily. To place our findings in an evolutionary context, we compared syntenic patterns across Insecta in a phylogenetic framework. For the first time, we find that synteny decays at an exponential rate relative to phylogenetic distance. Additionally, there are significant differences in decay rates between insect orders, this pattern was not driven by Lepidoptera alone which has a substantially different rate.
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Affiliation(s)
- Matthew H. Van Dam
- Entomology Department, Institute for Biodiversity Science and Sustainability, California Academy of Sciences, San Francisco, California, United States of America
- Center for Comparative Genomics, Institute for Biodiversity Science and Sustainability, California Academy of Science, San Francisco, California, United States of America
| | - Analyn Anzano Cabras
- Coleoptera Research Center, Institute for Biodiversity and Environment, University of Mindanao, Matina, Davao City, Philippines
| | - James B. Henderson
- Center for Comparative Genomics, Institute for Biodiversity Science and Sustainability, California Academy of Science, San Francisco, California, United States of America
| | - Andrew J. Rominger
- School of Biology and Ecology, University of Maine, Orono, Maine, United States of America
| | - Cynthia Pérez Estrada
- The Center for Genome Architecture, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Arina D. Omer
- The Center for Genome Architecture, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Olga Dudchenko
- The Center for Genome Architecture, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Erez Lieberman Aiden
- The Center for Genome Architecture, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Athena W. Lam
- Center for Comparative Genomics, Institute for Biodiversity Science and Sustainability, California Academy of Science, San Francisco, California, United States of America
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Mackay-Smith A, Dornon MK, Lucier R, Okimoto A, Mendonca de Sousa F, Rodriguero M, Confalonieri V, Lanteri AA, Sequeira AS. Host-specific gene expression as a tool for introduction success in Naupactus parthenogenetic weevils. PLoS One 2021; 16:e0248202. [PMID: 34329290 PMCID: PMC8323892 DOI: 10.1371/journal.pone.0248202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 07/13/2021] [Indexed: 11/22/2022] Open
Abstract
Food resource access can mediate establishment success in invasive species, and generalist herbivorous insects are thought to rely on mechanisms of transcriptional plasticity to respond to dietary variation. While asexually reproducing invasives typically have low genetic variation, the twofold reproductive capacity of asexual organisms is a marked advantage for colonization. We studied host-related transcriptional acclimation in parthenogenetic, invasive, and polyphagous weevils: Naupactus cervinus and N. leucoloma. We analyzed patterns of gene expression in three gene categories that can mediate weevil-host plant interactions through identification of suitable host plants, short-term acclimation to host plant defenses, and long-term adaptation to host plant defenses and their pathogens. This approach employed comparative transcriptomic methods to investigate differentially expressed host detection, detoxification, immune defense genes, and pathway-level gene set enrichment. Our results show that weevil gene expression responses can be host plant-specific, and that elements of that response can be maintained in the offspring. Some host plant groups, such as legumes, appear to be more taxing as they elicit a complex gene expression response which is both strong in intensity and specific in identity. However, the weevil response to taxing host plants shares many differentially expressed genes with other stressful situations, such as host plant cultivation conditions and transition to novel host, suggesting that there is an evolutionarily favorable shared gene expression regime for responding to different types of stressful situations. Modulating gene expression in the absence of other avenues for phenotypic adaptation may be an important mechanism of successful colonization for these introduced insects.
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Affiliation(s)
- Ava Mackay-Smith
- Department of Biological Sciences, Wellesley College, Wellesley, Massachusetts, United States of America
| | - Mary Kate Dornon
- Department of Biological Sciences, Wellesley College, Wellesley, Massachusetts, United States of America
| | - Rosalind Lucier
- Department of Biological Sciences, Wellesley College, Wellesley, Massachusetts, United States of America
| | - Anna Okimoto
- Department of Biological Sciences, Wellesley College, Wellesley, Massachusetts, United States of America
| | - Flavia Mendonca de Sousa
- Department of Biological Sciences, Wellesley College, Wellesley, Massachusetts, United States of America
| | - Marcela Rodriguero
- Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Viviana Confalonieri
- Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Analia A. Lanteri
- Facultad de Ciencias Naturales y Museo, Universidad de La Plata, La Plata, Argentina
| | - Andrea S. Sequeira
- Department of Biological Sciences, Wellesley College, Wellesley, Massachusetts, United States of America
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Singh SK, Jagadeesan R, Thangaraj SR, Selvapandian U, Nayak MK, Subbarayalu M. Phenotypic and molecular analyses in rice weevil, Sitophilus oryzae (Linneaus) (Coleoptera: Curculionidae): identification of a super kdr mutation, T929I, conferring resistance to deltamethrin. Pest Manag Sci 2021; 77:3289-3299. [PMID: 33763965 DOI: 10.1002/ps.6373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/13/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND The rice weevil, Sitophilus oryzae (L.) (Coleoptera: Curculionidae) is a cosmopolitan pest of stored cereal grains and other commodities globally. Infestations caused by S. oryzae makes grains unsuitable for consumption, processing, and export. Deltamethrin, a synthetic pyrethroid insecticide, is widely used in major grain storages in India as a prophylactic treatment to control this pest. However, recurrent use of this insecticide had led to genetic resistance in S. oryzae, questioning its ongoing use at the current recommended concentration. RESULTS Dose response analysis of resistant (Delta-R) and susceptible (Lab-S) strains of S. oryzae collected from grain storages across southern India, revealed that Delta-R was 134-fold more resistant than the Lab-S at median lethal concentration (LC50 ). A concentration of 180 ppm over 48 h effectively discriminated 16 resistant field populations from Lab-S with per cent resistance ranging from 8.72% to 75.86%. Exposing all the resistant populations to 1000 ppm over 48 h identified 12 populations with strongly resistant individuals and confirmed the existence of two distinct resistance phenotypes, 'weak' and 'strong' in S. oryzae. Furthermore, sequence analysis of the voltage-gated sodium channel (vgsc) gene in Delta-R identified a single target site mutation, T929I conferring resistance in S. oryzae. CAPS (Cleaved Amplified Polymorphic Sequence) marker analysis of this allele confirmed that frequency of resistance is high (up to 0.96) supporting the results of phenotypic analysis. CONCLUSION Both phenotype and molecular marker analyses clearly demonstrated that deltamethrin at 180 and 1000 ppm can be used to discriminate weakly and strongly resistant populations in S. oryzae, respectively. Resistance diagnostics based on the mutation, T929I, supports our phenotypic data and indicates that resistance to deltamethrin in S. oryzae is prevalent in southern parts of India, stressing the need to identify a synergist or suitable alternatives. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Sonu K Singh
- Department of Plant Biotechnology, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Rajeswaran Jagadeesan
- Department of Agriculture and Fisheries, Queensland, Ecosciences Precinct, Brisbane, QLD, Australia
| | - Sonai Rajan Thangaraj
- Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, India
| | - Upasna Selvapandian
- Department of Plant Biotechnology, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Manoj K Nayak
- Department of Agriculture and Fisheries, Queensland, Ecosciences Precinct, Brisbane, QLD, Australia
| | - Mohankumar Subbarayalu
- Department of Plant Biotechnology, Centre for Plant Molecular Biology and Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
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Rasool KG, Mehmood K, Husain M, Tufail M, Alwaneen WS, Aldawood AS. De novo transcriptome analysis and identification of reproduction control genes from the red palm weevil Rhynchophorus ferrugineus. PLoS One 2021; 16:e0251278. [PMID: 34029342 PMCID: PMC8143396 DOI: 10.1371/journal.pone.0251278] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 04/22/2021] [Indexed: 11/19/2022] Open
Abstract
Recent attacks by the red palm weevil, Rhynchophorus ferrugineus (Olivier), have become a severe problem for palm species. In present work, fat body transcriptome of adult female red palm weevil was analyzed, focusing on the identification of reproduction control genes. Transcriptome study was completed by means of next-generation sequencing (NGS) using Illumina Hiseq 2000 sequencing system. A total of 105,938,182 raw reads, 102,645,544 clean reads, and 9,238,098,960 clean nucleotides with a guanine-cytosine content of 40.31%, were produced. The processed transcriptome data resulted in 43,789 unique transcripts (with mean lengths of 1,172 bp). It was found that 20% of total unique transcripts shared up to 80%-100% sequence identity with homologous species, mainly the mountain pine beetle Dendroctonus ponderosae (59.9%) and red flour beetle Tribolium castaneum (26.9%). Nearly 25 annotated genes were predicted to be involved in red palm weevil reproduction, including five vitellogenin (Vg) transcripts. Among the five Vg gene transcripts, one was highly expressed compared with the other four (FPKM values of 1.963, 1.471, 1.028, and 1.017, respectively), and the five Vg gene transcripts were designated as RfVg, RfVg-equivalent1, RfVg-equivalent2, RfVg-equivalent3, and RfVg-equivalent4, respectively. The high expression level of RfVg verified by RT-polymerase chain reaction analysis suggested that RfVg is the primary functional Vg gene in red palm weevil. A high similarity of RfVg with other Coleopterans was also reflected in a phylogenetic tree, where RfVg was placed within the clade of the order Coleoptera. Awareness of the major genes that play critical roles in reproduction and proliferation of red palm weevil is valuable to understand their reproduction mechanism at a molecular level. In addition, for future molecular studies, the NGS dataset obtained will be useful and will promote the exploration of biotech-based control strategies against red palm weevil, a primary pest of palm trees.
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Affiliation(s)
- Khawaja Ghulam Rasool
- Economic Entomology Research Unit, Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Khalid Mehmood
- Economic Entomology Research Unit, Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
- Institute of Plant Protection, Faculty of Agriculture and Environmental Sciences, MNS-University of Agriculture, Multan, Pakistan
| | - Mureed Husain
- Economic Entomology Research Unit, Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Tufail
- Economic Entomology Research Unit, Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
- Ghazi University, Dera Ghazi Khan, Punjab, Pakistan
| | - Waleed Saleh Alwaneen
- National Center for Agricultural Technology (NCAT), King Abdulaziz City for Science and Technology (KACST), Riyadh, Saudi Arabia
| | - Abdulrahman Saad Aldawood
- Economic Entomology Research Unit, Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
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