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Yang D, Li D, Jiang L, Lin J, Yue G, Xiao K, Hao X, Ji Q, Hong Y, Cai P, Yang J. Antennal transcriptome analysis of Psyttalia incisi (silvestri) (Hymenoptera: Braconidae): identification and tissue expression profiling of candidate odorant-binding protein genes. Mol Biol Rep 2024; 51:333. [PMID: 38393425 DOI: 10.1007/s11033-024-09281-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/23/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND Olfaction plays an important role in host-seeking by parasitoids, as they can sense chemical signals using sensitive chemosensory systems. Psyttalia incisi (Silvestri) (Hymenoptera: Braconidae) is the dominant parasitoid of Bactrocera dorsalis (Hendel) in fruit-producing regions of southern China. The olfactory behavior of P. incisi has been extensively studied; however, the chemosensory mechanisms of this species are not fully understood. RESULTS Bioinformatics analysis of 64,515 unigenes from the antennal transcriptome of both male and female adults P. incisi identified 87 candidate chemosensory genes. These included 13 odorant-binding proteins (OBPs), seven gustatory receptors (GRs), 55 odorant receptors (ORs), 10 ionotropic receptors (IRs), and two sensory neuron membrane proteins (SNMPs). Phylogenetic trees were constructed to predict evolutionary relationships between these chemosensory genes in hymenopterans. Moreover, the tissue expression profiles of 13 OBPs were analyzed by quantitative real-time PCR, revealing high expression of seven OBPs (1, 3, 6, 7, 8, 12, and 13) in the antennae. CONCLUSION This study represents the first identification of chemosensory genes and the determination of their expression patterns in different tissues of P. incisi. These results contribute to a better understanding of the function of the chemosensory system of this parasitoid species.
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Affiliation(s)
- Deqing Yang
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- Department of Horticulture, College of Tea and Food Science, Wuyi University, Wuyishan, China
| | - Dongliang Li
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
- Department of Horticulture, College of Tea and Food Science, Wuyi University, Wuyishan, China
| | - Lili Jiang
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jia Lin
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Guoqing Yue
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Kang Xiao
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xuxing Hao
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qinge Ji
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Yongcong Hong
- Department of Horticulture, College of Tea and Food Science, Wuyi University, Wuyishan, China
| | - Pumo Cai
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China.
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China.
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China.
- Department of Horticulture, College of Tea and Food Science, Wuyi University, Wuyishan, China.
| | - Jianquan Yang
- Institute of Biological Control, Plant Protection College, Fujian Agriculture and Forestry University, Fuzhou, China.
- Key Laboratory of Biopesticide and Chemical Biology, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China.
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, China.
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Yang J, Xu X, Lin S, Chen S, Lin G, Song Q, Bai J, You M, Xie M. Profiling of MicroRNAs in Midguts of Plutella xylostella Provides Novel Insights Into the Bacillus thuringiensis Resistance. Front Genet 2021; 12:739849. [PMID: 34567090 PMCID: PMC8455949 DOI: 10.3389/fgene.2021.739849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/20/2021] [Indexed: 01/03/2023] Open
Abstract
The diamondback moth (DBM), Plutella xylostella, one of the most destructive lepidopteran pests worldwide, has developed field resistance to Bacillus thuringiensis (Bt) Cry toxins. Although miRNAs have been reported to be involved in insect resistance to multiple insecticides, our understanding of their roles in mediating Bt resistance is limited. In this study, we constructed small RNA libraries from midguts of the Cry1Ac-resistant (Cry1S1000) strain and the Cry1Ac-susceptible strain (G88) using a high-throughput sequencing analysis. A total of 437 (76 known and 361 novel miRNAs) were identified, among which 178 miRNAs were classified into 91 miRNA families. Transcripts per million analysis revealed 12 differentially expressed miRNAs between the Cry1S1000 and G88 strains. Specifically, nine miRNAs were down-regulated and three up-regulated in the Cry1S1000 strain compared to the G88 strain. Next, we predicted the potential target genes of these differentially expressed miRNAs and carried out GO and KEGG pathway analyses. We found that the cellular process, metabolism process, membrane and the catalytic activity were the most enriched GO terms and the Hippo, MAPK signaling pathway might be involved in Bt resistance of DBM. In addition, the expression patterns of these miRNAs and their target genes were determined by RT-qPCR, showing that partial miRNAs negatively while others positively correlate with their corresponding target genes. Subsequently, novel-miR-240, one of the differentially expressed miRNAs with inverse correlation with its target genes, was confirmed to interact with Px017590 and Px007885 using dual luciferase reporter assays. Our study highlights the characteristics of differentially expressed miRNAs in midguts of the Cry1S1000 and G88 strains, paving the way for further investigation of miRNA roles in mediating Bt resistance.
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Affiliation(s)
- Jie Yang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China.,Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China.,Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Xuejiao Xu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China.,Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China.,Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Sujie Lin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China.,Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China.,Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Shiyao Chen
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Guifang Lin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China.,Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China.,Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qisheng Song
- Division of Plant Sciences, University of Missouri, Columbia, MO, United States
| | - Jianlin Bai
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China.,Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China.,Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Minsheng You
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China.,Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China.,Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Miao Xie
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Institute of Applied Ecology, Fujian Agriculture and Forestry University, Fuzhou, China.,Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fujian Agriculture and Forestry University, Fuzhou, China.,Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, China.,College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
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Oeyen JP, Baa-Puyoulet P, Benoit JB, Beukeboom LW, Bornberg-Bauer E, Buttstedt A, Calevro F, Cash EI, Chao H, Charles H, Chen MJM, Childers C, Cridge AG, Dearden P, Dinh H, Doddapaneni HV, Dolan A, Donath A, Dowling D, Dugan S, Duncan E, Elpidina EN, Friedrich M, Geuverink E, Gibson JD, Grath S, Grimmelikhuijzen CJP, Große-Wilde E, Gudobba C, Han Y, Hansson BS, Hauser F, Hughes DST, Ioannidis P, Jacquin-Joly E, Jennings EC, Jones JW, Klasberg S, Lee SL, Lesný P, Lovegrove M, Martin S, Martynov AG, Mayer C, Montagné N, Moris VC, Munoz-Torres M, Murali SC, Muzny DM, Oppert B, Parisot N, Pauli T, Peters RS, Petersen M, Pick C, Persyn E, Podsiadlowski L, Poelchau MF, Provataris P, Qu J, Reijnders MJMF, von Reumont BM, Rosendale AJ, Simao FA, Skelly J, Sotiropoulos AG, Stahl AL, Sumitani M, Szuter EM, Tidswell O, Tsitlakidis E, Vedder L, Waterhouse RM, Werren JH, Wilbrandt J, Worley KC, Yamamoto DS, van de Zande L, Zdobnov EM, Ziesmann T, Gibbs RA, Richards S, Hatakeyama M, Misof B, Niehuis O. Sawfly Genomes Reveal Evolutionary Acquisitions That Fostered the Mega-Radiation of Parasitoid and Eusocial Hymenoptera. Genome Biol Evol 2021; 12:1099-1188. [PMID: 32442304 PMCID: PMC7455281 DOI: 10.1093/gbe/evaa106] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2020] [Indexed: 12/12/2022] Open
Abstract
The tremendous diversity of Hymenoptera is commonly attributed to the evolution of parasitoidism in the last common ancestor of parasitoid sawflies (Orussidae) and wasp-waisted Hymenoptera (Apocrita). However, Apocrita and Orussidae differ dramatically in their species richness, indicating that the diversification of Apocrita was promoted by additional traits. These traits have remained elusive due to a paucity of sawfly genome sequences, in particular those of parasitoid sawflies. Here, we present comparative analyses of draft genomes of the primarily phytophagous sawfly Athalia rosae and the parasitoid sawfly Orussus abietinus. Our analyses revealed that the ancestral hymenopteran genome exhibited traits that were previously considered unique to eusocial Apocrita (e.g., low transposable element content and activity) and a wider gene repertoire than previously thought (e.g., genes for CO2 detection). Moreover, we discovered that Apocrita evolved a significantly larger array of odorant receptors than sawflies, which could be relevant to the remarkable diversification of Apocrita by enabling efficient detection and reliable identification of hosts.
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Affiliation(s)
- Jan Philip Oeyen
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany.,Lead Contact
| | | | | | - Leo W Beukeboom
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, The Netherlands
| | | | - Anja Buttstedt
- B CUBE-Center for Molecular Bioengineering, Technische Universität Dresden, Germany
| | - Federica Calevro
- INSA-Lyon, INRAE, BF2I, UMR0203, Université de Lyon, Villeurbanne, France
| | - Elizabeth I Cash
- School of Life Sciences, College of Liberal Arts and Sciences, Arizona State University.,Department of Environmental Science, Policy, and Management, College of Natural Resources, University of California, Berkeley
| | - Hsu Chao
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Hubert Charles
- INSA-Lyon, INRAE, BF2I, UMR0203, Université de Lyon, Villeurbanne, France
| | - Mei-Ju May Chen
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
| | | | - Andrew G Cridge
- Genomics Aotearoa and Biochemistry Department, University of Otago, Dunedin, New Zealand
| | - Peter Dearden
- Genomics Aotearoa and Biochemistry Department, University of Otago, Dunedin, New Zealand
| | - Huyen Dinh
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Harsha Vardhan Doddapaneni
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | | | - Alexander Donath
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany
| | - Daniel Dowling
- Institute for Evolution and Biodiversity, University of Münster, Germany
| | - Shannon Dugan
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Elizabeth Duncan
- School of Biology, Faculty of Biological Sciences, University of Leeds, United Kingdom
| | - Elena N Elpidina
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Russia
| | - Markus Friedrich
- Department of Biological Sciences, Wayne State University, Detroit
| | - Elzemiek Geuverink
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, The Netherlands
| | - Joshua D Gibson
- Department of Biology, Georgia Southern University, Statesboro.,Department of Entomology, Purdue University, West Lafayette
| | - Sonja Grath
- Division of Evolutionary Biology, Faculty of Biology, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany
| | | | - Ewald Große-Wilde
- Department of Evolutionary Neuroethology, Max-Planck-Institute for Chemical Ecology, Jena, Germany.,Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague (CULS), Praha 6-Suchdol, Czech Republic
| | - Cameron Gudobba
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago
| | - Yi Han
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Bill S Hansson
- Department of Evolutionary Neuroethology, Max-Planck-Institute for Chemical Ecology, Jena, Germany
| | - Frank Hauser
- Department of Biology, University of Copenhagen, Denmark
| | - Daniel S T Hughes
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Panagiotis Ioannidis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Switzerland.,Swiss Institute of Bioinformatics, Geneva, Switzerland.,Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Crete, Greece
| | - Emmanuelle Jacquin-Joly
- INRAE, CNRS, IRD, UPEC, Univ. P7, Institute of Ecology and Environmental Sciences of Paris, Sorbonne Université, Versailles, France
| | | | - Jeffery W Jones
- Department of Biological Sciences, Oakland University, Rochester
| | - Steffen Klasberg
- Institute for Evolution and Biodiversity, University of Münster, Germany
| | - Sandra L Lee
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Peter Lesný
- Institute of Evolutionary Biology and Ecology, Zoology and Evolutionary Biology, University of Bonn, Germany
| | - Mackenzie Lovegrove
- Genomics Aotearoa and Biochemistry Department, University of Otago, Dunedin, New Zealand
| | - Sebastian Martin
- Institute of Evolutionary Biology and Ecology, Zoology and Evolutionary Biology, University of Bonn, Germany
| | | | - Christoph Mayer
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany
| | - Nicolas Montagné
- INRAE, CNRS, IRD, UPEC, Univ. P7, Institute of Ecology and Environmental Sciences of Paris, Sorbonne Université, Paris, France
| | - Victoria C Moris
- Department of Evolutionary Biology and Ecology, Institute of Biology I (Zoology), Albert Ludwig University Freiburg, Germany
| | - Monica Munoz-Torres
- Berkeley Bioinformatics Open-source Projects (BBOP), Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California
| | - Shwetha Canchi Murali
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Donna M Muzny
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Brenda Oppert
- USDA Agricultural Research Service, Center for Grain and Animal Health Research, Manhattan, Kansas
| | - Nicolas Parisot
- INSA-Lyon, INRAE, BF2I, UMR0203, Université de Lyon, Villeurbanne, France
| | - Thomas Pauli
- Department of Evolutionary Biology and Ecology, Institute of Biology I (Zoology), Albert Ludwig University Freiburg, Germany
| | - Ralph S Peters
- Arthropoda Department, Center for Taxonomy and Evolutionary Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany
| | - Malte Petersen
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany.,Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | | | - Emma Persyn
- INRAE, CNRS, IRD, UPEC, Univ. P7, Institute of Ecology and Environmental Sciences of Paris, Sorbonne Université, Paris, France
| | - Lars Podsiadlowski
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany
| | | | - Panagiotis Provataris
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany
| | - Jiaxin Qu
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Maarten J M F Reijnders
- Department of Ecology and Evolution, University of Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Björn Marcus von Reumont
- Institute for Insect Biotechnology, University of Gießen, Germany.,Center for Translational Biodiversity Genomics (LOEWE-TBG), Frankfurt, Germany
| | | | - Felipe A Simao
- Department of Genetic Medicine and Development, University of Geneva Medical School, Switzerland.,Swiss Institute of Bioinformatics, Geneva, Switzerland
| | - John Skelly
- Genomics Aotearoa and Biochemistry Department, University of Otago, Dunedin, New Zealand
| | | | - Aaron L Stahl
- Department of Biological Sciences, University of Cincinnati.,Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida
| | - Megumi Sumitani
- Transgenic Silkworm Research Unit, Division of Biotechnology, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), Owashi, Tsukuba, Japan
| | - Elise M Szuter
- School of Life Sciences, College of Liberal Arts and Sciences, Arizona State University
| | - Olivia Tidswell
- Biochemistry Department, University of Otago, Dunedin, New Zealand.,Zoology Department, University of Cambridge, United Kingdom
| | | | - Lucia Vedder
- Center for Bioinformatics Tübingen (ZBIT), University of Tübingen, Germany
| | - Robert M Waterhouse
- Department of Ecology and Evolution, University of Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | | | - Jeanne Wilbrandt
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany.,Computational Biology Group, Leibniz Institute on Aging-Fritz Lipmann Institute, Jena, Germany
| | - Kim C Worley
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Daisuke S Yamamoto
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Yakushiji, Shimotsuke, Japan
| | - Louis van de Zande
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, The Netherlands
| | - Evgeny M Zdobnov
- Department of Genetic Medicine and Development, University of Geneva Medical School, Switzerland.,Swiss Institute of Bioinformatics, Geneva, Switzerland
| | - Tanja Ziesmann
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany
| | - Richard A Gibbs
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Stephen Richards
- Human Genome Sequencing Center, Department of Human and Molecular Genetics, Baylor College of Medicine, Houston, Texas
| | - Masatsugu Hatakeyama
- Insect Genome Research and Engineering Unit, Division of Applied Genetics, Institute of Agrobiological Sciences, NARO, Owashi, Tsukuba, Japan
| | - Bernhard Misof
- Center for Molecular Biodiversity Research, Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany
| | - Oliver Niehuis
- Department of Evolutionary Biology and Ecology, Institute of Biology I (Zoology), Albert Ludwig University Freiburg, Germany
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4
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Michell C, Wutke S, Aranda M, Nyman T. Genomes of the willow-galling sawflies Euura lappo and Eupontania aestiva (Hymenoptera: Tenthredinidae): a resource for research on ecological speciation, adaptation, and gall induction. G3 (BETHESDA, MD.) 2021; 11:jkab094. [PMID: 33788947 PMCID: PMC8104934 DOI: 10.1093/g3journal/jkab094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/09/2021] [Indexed: 12/14/2022]
Abstract
Hymenoptera is a hyperdiverse insect order represented by over 153,000 different species. As many hymenopteran species perform various crucial roles for our environments, such as pollination, herbivory, and parasitism, they are of high economic and ecological importance. There are 99 hymenopteran genomes in the NCBI database, yet only five are representative of the paraphyletic suborder Symphyta (sawflies, woodwasps, and horntails), while the rest represent the suborder Apocrita (bees, wasps, and ants). Here, using a combination of 10X Genomics linked-read sequencing, Oxford Nanopore long-read technology, and Illumina short-read data, we assembled the genomes of two willow-galling sawflies (Hymenoptera: Tenthredinidae: Nematinae: Euurina): the bud-galling species Euura lappo and the leaf-galling species Eupontania aestiva. The final assembly for E. lappo is 259.85 Mbp in size, with a contig N50 of 209.0 kbp and a BUSCO score of 93.5%. The E. aestiva genome is 222.23 Mbp in size, with a contig N50 of 49.7 kbp and a 90.2% complete BUSCO score. De novo annotation of repetitive elements showed that 27.45% of the genome was composed of repetitive elements in E. lappo and 16.89% in E. aestiva, which is a marked increase compared to previously published hymenopteran genomes. The genomes presented here provide a resource for inferring phylogenetic relationships among basal hymenopterans, comparative studies on host-related genomic adaptation in plant-feeding insects, and research on the mechanisms of plant manipulation by gall-inducing insects.
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Affiliation(s)
- Craig Michell
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, 80100, Finland
| | - Saskia Wutke
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, 80100, Finland
| | - Manuel Aranda
- Biological and Environmental Sciences & Engineering Division, Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Tommi Nyman
- Department of Ecosystems in the Barents Region, Norwegian Institute of Bioeconomy Research, Svanvik, 9925, Norway
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5
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Ferguson ST, Bakis I, Zwiebel LJ. Advances in the Study of Olfaction in Eusocial Ants. INSECTS 2021; 12:252. [PMID: 33802783 PMCID: PMC8002415 DOI: 10.3390/insects12030252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/09/2021] [Accepted: 03/13/2021] [Indexed: 11/16/2022]
Abstract
Over the past decade, spurred in part by the sequencing of the first ant genomes, there have been major advances in the field of olfactory myrmecology. With the discovery of a significant expansion of the odorant receptor gene family, considerable efforts have been directed toward understanding the olfactory basis of complex social behaviors in ant colonies. Here, we review recent pivotal studies that have begun to reveal insights into the development of the olfactory system as well as how olfactory stimuli are peripherally and centrally encoded. Despite significant biological and technical impediments, substantial progress has been achieved in the application of gene editing and other molecular techniques that notably distinguish the complex olfactory system of ants from other well-studied insect model systems, such as the fruit fly. In doing so, we hope to draw attention not only to these studies but also to critical knowledge gaps that will serve as a compass for future research endeavors.
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Affiliation(s)
| | | | - Laurence J. Zwiebel
- Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235, USA; (S.T.F.); (I.B.)
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6
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Guo B, Hao E, Qiao H, Wang J, Wu W, Zhou J, Lu P. Antennal transcriptome analysis of olfactory genes and characterizations of odorant binding proteins in two woodwasps, Sirex noctilio and Sirex nitobei (Hymenoptera: Siricidae). BMC Genomics 2021; 22:172. [PMID: 33691636 PMCID: PMC7945326 DOI: 10.1186/s12864-021-07452-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 02/19/2021] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The woodwasp Sirex noctilio Fabricius is a major quarantine pest worldwide that was first discovered in China in 2013 and mainly harms Pinus sylvestris var. mongolica Litv.. S. nitobei Matsumura is a native species in China and is closely related to S. noctilio. Recently, the two woodwasps species were found attacking the P. sylvestris var. mongolica Litv in succession. The olfactory system is the foundation of insect behavior. Olfactory genes were identified through antennal transcriptome analysis. The expression profiles odorant binding proteins (OBPs) were analyzed with RT-qPCR. RESULTS From our transcriptome analysis, 16 OBPs, 7 chemosensory proteins (CSPs), 41 odorant receptors (ORs), 8 gustatory receptors (GRs), 13 ionotropic receptors (IRs), and one sensory neuron membrane protein (SNMP) were identified in S. noctilio, while 15 OBPs, 6 CSPs, 43 ORs, 10 GRs, 16 IRs, and 1 SNMP were identified in S. nitobei. Most of the olfactory genes identified in two species were homologous. However, some species-specific olfactory genes were identified from the antennal transcriptomes, including SnocOBP13, SnocCSP6, SnocOR26, SnocGR2, SnocIR7 in S. noctilio and SnitGR9, SnitGR11, SnitIR17 in S. nitobei. In total, 14 OBPs were expressed primarily in the antennae. SnocOBP9 and SnitOBP9, identified as PBP homologues, were sex-biased expression in two siricid, but with different pattern. SnocOBP11 and SnitOBP11 were highly expressed in antennae and clearly expressed in external genitalia. SnocOBP7 and SnitOBP7 were highly expressed in male genitalia. SnocOBP3 and SnocOBP10 were highly expressed in female genitalia and male heads, while SnitOBP3 and SnitOBP10 did not show obvious tissue bias. CONCLUSION We analyzed 86 and 91 olfactory genes from S. noctilio and S. nitobei, respectively. Most of the olfactory genes identified were homologous, but also some species-specific olfactory genes were identified, which indicated the similarities and differences of the molecular mechanisms between the two closely-related species. Different expression in the antennae, external genitals or heads, exhibiting an obvious sex bias, suggested their different role in recognizing sex pheromones or plant volatiles. Species-specific expression for several OBPs genes may suggest that they strengthened or lost their original function during species differentiation, resulting in olfactory differences between the two species.
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Affiliation(s)
- Bing Guo
- The Key Laboratory for Silviculture and Conservation of the Ministry of Education, School of Forestry, Beijing Forestry University, 35 Qinghua Dong Road, Haidian District, Beijing, 100083, People's Republic of China
| | - Enhua Hao
- The Key Laboratory for Silviculture and Conservation of the Ministry of Education, School of Forestry, Beijing Forestry University, 35 Qinghua Dong Road, Haidian District, Beijing, 100083, People's Republic of China
| | - Haili Qiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100193, People's Republic of China
| | - Jingzhen Wang
- The Key Laboratory for Silviculture and Conservation of the Ministry of Education, School of Forestry, Beijing Forestry University, 35 Qinghua Dong Road, Haidian District, Beijing, 100083, People's Republic of China
| | - Weiwei Wu
- The Key Laboratory for Silviculture and Conservation of the Ministry of Education, School of Forestry, Beijing Forestry University, 35 Qinghua Dong Road, Haidian District, Beijing, 100083, People's Republic of China
| | - Jingjiang Zhou
- The Key Laboratory for Silviculture and Conservation of the Ministry of Education, School of Forestry, Beijing Forestry University, 35 Qinghua Dong Road, Haidian District, Beijing, 100083, People's Republic of China
| | - Pengfei Lu
- The Key Laboratory for Silviculture and Conservation of the Ministry of Education, School of Forestry, Beijing Forestry University, 35 Qinghua Dong Road, Haidian District, Beijing, 100083, People's Republic of China.
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7
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Obiero GF, Pauli T, Geuverink E, Veenendaal R, Niehuis O, Große-Wilde E. Chemoreceptor Diversity in Apoid Wasps and Its Reduction during the Evolution of the Pollen-Collecting Lifestyle of Bees (Hymenoptera: Apoidea). Genome Biol Evol 2021; 13:6117318. [PMID: 33484563 PMCID: PMC8011036 DOI: 10.1093/gbe/evaa269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2020] [Indexed: 12/15/2022] Open
Abstract
Chemoreceptors help insects to interact with their environment, to detect and assess food sources and oviposition sites, and to aid in intra- and interspecific communication. In Hymenoptera, species of eusocial lineages possess large chemoreceptor gene repertoires compared with solitary species, possibly because of their additional need to recognize nest-mates and caste. However, a critical piece of information missing so far has been the size of chemoreceptor gene repertoires of solitary apoid wasps. Apoid wasps are a paraphyletic group of almost exclusively solitary Hymenoptera phylogenetically positioned between ant and bee, both of which include eusocial species. We report the chemosensory-related gene repertoire sizes of three apoid wasps: Ampulex compressa, Cerceris arenaria, and Psenulus fuscipennis. We annotated genes encoding odorant (ORs), gustatory, and ionotropic receptors and chemosensory soluble proteins and odorant-binding proteins in transcriptomes of chemosensory tissues of the above three species and in early draft genomes of two species, A. compressa and C. arenaria. Our analyses revealed that apoid wasps possess larger OR repertoires than any bee lineage, that the last common ancestor of Apoidea possessed a considerably larger OR repertoire (∼160) than previously estimated (73), and that the expansion of OR genes in eusocial bees was less extensive than previously assumed. Intriguingly, the evolution of pollen-collecting behavior in the stem lineage of bees was associated with a notable loss of OR gene diversity. Thus, our results support the view that herbivorous Hymenoptera tend to possess smaller OR repertoires than carnivorous, parasitoid, or kleptoparasitic species.
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Affiliation(s)
- George F Obiero
- Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.,School of Biological and Life Sciences, The Technical University of Kenya, Nairobi, Kenya
| | - Thomas Pauli
- Department of Evolutionary Biology and Ecology, Institute of Biology I (Zoology), Albert Ludwig University of Freiburg, Germany
| | - Elzemiek Geuverink
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, The Netherlands
| | | | - Oliver Niehuis
- Department of Evolutionary Biology and Ecology, Institute of Biology I (Zoology), Albert Ludwig University of Freiburg, Germany
| | - Ewald Große-Wilde
- Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Jena, Germany.,EXTEMIT-K, Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Praha-Suchdol, Czech Republic
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8
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Xu W. How do moth and butterfly taste?-Molecular basis of gustatory receptors in Lepidoptera. INSECT SCIENCE 2020; 27:1148-1157. [PMID: 31433559 PMCID: PMC7687262 DOI: 10.1111/1744-7917.12718] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 07/21/2019] [Accepted: 08/10/2019] [Indexed: 05/04/2023]
Abstract
Insect gustatory system plays a central role in guiding insect feeding behaviors, insect-plant interactions and coevolutions. Gustatory receptors (GRs) form the interface between the insect taste system and their environment. Previously, most studies on insect GRs are focused on Drosophila; much less attention has been paid to Lepidoptera species, which consist of a large number of serious agricultural crop pests. With the exceptional advances in the next generation sequencing (NGS), cellular biology, RNA interference (RNAi), and clustered regularly interspaced short palindromic repeats (CRISPR) technologies in recent years, extraordinary progresses have been achieved elucidating the molecular mechanisms of Lepidopteran GRs. In this review, we highlighted these advances, discussed what these advances have revealed and provide our new insights into this field.
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Affiliation(s)
- Wei Xu
- Agricultural SciencesCollege of Science, Health, Engineering and Education, Murdoch UniversityWAAustralia
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9
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Dennis AB, Ballesteros GI, Robin S, Schrader L, Bast J, Berghöfer J, Beukeboom LW, Belghazi M, Bretaudeau A, Buellesbach J, Cash E, Colinet D, Dumas Z, Errbii M, Falabella P, Gatti JL, Geuverink E, Gibson JD, Hertaeg C, Hartmann S, Jacquin-Joly E, Lammers M, Lavandero BI, Lindenbaum I, Massardier-Galata L, Meslin C, Montagné N, Pak N, Poirié M, Salvia R, Smith CR, Tagu D, Tares S, Vogel H, Schwander T, Simon JC, Figueroa CC, Vorburger C, Legeai F, Gadau J. Functional insights from the GC-poor genomes of two aphid parasitoids, Aphidius ervi and Lysiphlebus fabarum. BMC Genomics 2020; 21:376. [PMID: 32471448 PMCID: PMC7257214 DOI: 10.1186/s12864-020-6764-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/30/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Parasitoid wasps have fascinating life cycles and play an important role in trophic networks, yet little is known about their genome content and function. Parasitoids that infect aphids are an important group with the potential for biological control. Their success depends on adapting to develop inside aphids and overcoming both host aphid defenses and their protective endosymbionts. RESULTS We present the de novo genome assemblies, detailed annotation, and comparative analysis of two closely related parasitoid wasps that target pest aphids: Aphidius ervi and Lysiphlebus fabarum (Hymenoptera: Braconidae: Aphidiinae). The genomes are small (139 and 141 Mbp) and the most AT-rich reported thus far for any arthropod (GC content: 25.8 and 23.8%). This nucleotide bias is accompanied by skewed codon usage and is stronger in genes with adult-biased expression. AT-richness may be the consequence of reduced genome size, a near absence of DNA methylation, and energy efficiency. We identify missing desaturase genes, whose absence may underlie mimicry in the cuticular hydrocarbon profile of L. fabarum. We highlight key gene groups including those underlying venom composition, chemosensory perception, and sex determination, as well as potential losses in immune pathway genes. CONCLUSIONS These findings are of fundamental interest for insect evolution and biological control applications. They provide a strong foundation for further functional studies into coevolution between parasitoids and their hosts. Both genomes are available at https://bipaa.genouest.org.
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Affiliation(s)
- Alice B Dennis
- Department of Aquatic Ecology, Eawag, 8600, Dübendorf, Switzerland.
- Institute of Integrative Biology, ETH Zürich, 8092, Zürich, Switzerland.
- Institute of Biochemistry and Biology, University of Potsdam, 14476, Potsdam, Germany.
| | - Gabriel I Ballesteros
- Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
- Centre for Molecular and Functional Ecology in Agroecosystems, Universidad de Talca, Talca, Chile
- Laboratorio de Control Biológico, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Stéphanie Robin
- IGEPP, Agrocampus Ouest, INRAE, Université de Rennes, 35650, Le Rheu, France
- Université de Rennes 1, INRIA, CNRS, IRISA, 35000, Rennes, France
| | - Lukas Schrader
- Institute for Evolution and Biodiversity, Universität Münster, Münster, Germany
| | - Jens Bast
- Department of Ecology and Evolution, Université de Lausanne, 1015, Lausanne, Switzerland
- Institute of Zoology, Universität zu Köln, 50674, Köln, Germany
| | - Jan Berghöfer
- Institute for Evolution and Biodiversity, Universität Münster, Münster, Germany
| | - Leo W Beukeboom
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - Maya Belghazi
- Aix-Marseille Univ, CNRS, INP, Inst Neurophysiopathol, PINT, PFNT, Marseille, France
| | - Anthony Bretaudeau
- IGEPP, Agrocampus Ouest, INRAE, Université de Rennes, 35650, Le Rheu, France
- Université de Rennes 1, INRIA, CNRS, IRISA, 35000, Rennes, France
| | - Jan Buellesbach
- Institute for Evolution and Biodiversity, Universität Münster, Münster, Germany
| | - Elizabeth Cash
- Department of Environmental Science, Policy, & Management, University of California, Berkeley, Berkeley, CA, 94720, USA
| | | | - Zoé Dumas
- Department of Ecology and Evolution, Université de Lausanne, 1015, Lausanne, Switzerland
| | - Mohammed Errbii
- Institute for Evolution and Biodiversity, Universität Münster, Münster, Germany
| | | | - Jean-Luc Gatti
- Université Côte d'Azur, INRAE, CNRS, ISA, Sophia Antipolis, France
| | - Elzemiek Geuverink
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, The Netherlands
| | - Joshua D Gibson
- Department of Environmental Science, Policy, & Management, University of California, Berkeley, Berkeley, CA, 94720, USA
- Department of Biology, Georgia Southern University, Statesboro, GA, 30460, USA
| | - Corinne Hertaeg
- Department of Aquatic Ecology, Eawag, 8600, Dübendorf, Switzerland
- Department of Environmental Systems Sciences, D-USYS, ETH Zürich, Zürich, Switzerland
| | - Stefanie Hartmann
- Institute of Biochemistry and Biology, University of Potsdam, 14476, Potsdam, Germany
| | - Emmanuelle Jacquin-Joly
- INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Diderot, Institute of Ecology and Environmental Sciences of Paris, iEES-Paris, F-78000, Versailles, France
| | - Mark Lammers
- Institute for Evolution and Biodiversity, Universität Münster, Münster, Germany
| | - Blas I Lavandero
- Laboratorio de Control Biológico, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Ina Lindenbaum
- Institute for Evolution and Biodiversity, Universität Münster, Münster, Germany
| | | | - Camille Meslin
- INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Diderot, Institute of Ecology and Environmental Sciences of Paris, iEES-Paris, F-78000, Versailles, France
| | - Nicolas Montagné
- INRAE, Sorbonne Université, CNRS, IRD, UPEC, Université Paris Diderot, Institute of Ecology and Environmental Sciences of Paris, iEES-Paris, F-78000, Versailles, France
| | - Nina Pak
- Department of Environmental Science, Policy, & Management, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Marylène Poirié
- Université Côte d'Azur, INRAE, CNRS, ISA, Sophia Antipolis, France
| | - Rosanna Salvia
- Department of Sciences, University of Basilicata, 85100, Potenza, Italy
| | - Chris R Smith
- Department of Biology, Earlham College, Richmond, IN, 47374, USA
| | - Denis Tagu
- IGEPP, Agrocampus Ouest, INRAE, Université de Rennes, 35650, Le Rheu, France
| | - Sophie Tares
- Université Côte d'Azur, INRAE, CNRS, ISA, Sophia Antipolis, France
| | - Heiko Vogel
- Department of Entomology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Tanja Schwander
- Department of Ecology and Evolution, Université de Lausanne, 1015, Lausanne, Switzerland
| | | | - Christian C Figueroa
- Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
- Centre for Molecular and Functional Ecology in Agroecosystems, Universidad de Talca, Talca, Chile
| | - Christoph Vorburger
- Department of Aquatic Ecology, Eawag, 8600, Dübendorf, Switzerland
- Institute of Integrative Biology, ETH Zürich, 8092, Zürich, Switzerland
| | - Fabrice Legeai
- IGEPP, Agrocampus Ouest, INRAE, Université de Rennes, 35650, Le Rheu, France
- Université de Rennes 1, INRIA, CNRS, IRISA, 35000, Rennes, France
| | - Jürgen Gadau
- Institute for Evolution and Biodiversity, Universität Münster, Münster, Germany.
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10
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Tvedte ES, Walden KKO, McElroy KE, Werren JH, Forbes AA, Hood GR, Logsdon JM, Feder JL, Robertson HM. Genome of the Parasitoid Wasp Diachasma alloeum, an Emerging Model for Ecological Speciation and Transitions to Asexual Reproduction. Genome Biol Evol 2020; 11:2767-2773. [PMID: 31553440 PMCID: PMC6781843 DOI: 10.1093/gbe/evz205] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2019] [Indexed: 12/24/2022] Open
Abstract
Parasitoid wasps are among the most speciose animals, yet have relatively few available genomic resources. We report a draft genome assembly of the wasp Diachasma alloeum (Hymenoptera: Braconidae), a host-specific parasitoid of the apple maggot fly Rhagoletis pomonella (Diptera: Tephritidae), and a developing model for understanding how ecological speciation can “cascade” across trophic levels. Identification of gene content confirmed the overall quality of the draft genome, and we manually annotated ∼400 genes as part of this study, including those involved in oxidative phosphorylation, chemosensation, and reproduction. Through comparisons to model hymenopterans such as the European honeybee Apis mellifera and parasitoid wasp Nasonia vitripennis, as well as a more closely related braconid parasitoid Microplitis demolitor, we identified a proliferation of transposable elements in the genome, an expansion of chemosensory genes in parasitoid wasps, and the maintenance of several key genes with known roles in sexual reproduction and sex determination. The D. alloeum genome will provide a valuable resource for comparative genomics studies in Hymenoptera as well as specific investigations into the genomic changes associated with ecological speciation and transitions to asexuality.
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Affiliation(s)
- Eric S Tvedte
- Department of Biology, University of Iowa, IA.,Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD
| | | | | | | | | | - Glen R Hood
- Department of Biological Sciences, Wayne State University, Detroit, MI
| | | | - Jeffrey L Feder
- Department of Biological Sciences, University of Notre Dame, IN
| | - Hugh M Robertson
- Department of Entomology, University of Illinois at Urbana-Champaign, IL
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11
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Yeoman CJ, Brutscher LM, Esen ÖC, Ibaoglu F, Fowler C, Eren AM, Wanner K, Weaver DK. Genome-resolved insights into a novel Spiroplasma symbiont of the Wheat Stem Sawfly ( Cephus cinctus). PeerJ 2019; 7:e7548. [PMID: 31523509 PMCID: PMC6716498 DOI: 10.7717/peerj.7548] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 07/25/2019] [Indexed: 12/24/2022] Open
Abstract
Arthropods often have obligate relationships with symbiotic microbes, and recent investigations have demonstrated that such host-microbe relationships could be exploited to suppress natural populations of vector carrying mosquitos. Strategies that target the interplay between agricultural pests and their symbionts could decrease the burden caused by agricultural pests; however, the lack of comprehensive genomic insights into naturally occurring microbial symbionts presents a significant bottleneck. Here we employed amplicon surveys, genome-resolved metagenomics, and scanning electron microscopy to investigate symbionts of the wheat stem sawfly (Cephus cinctus), a major pest that causes an estimated $350 million dollars or more in wheat yield losses in the northwestern United States annually. Through 16S rRNA gene sequencing of two major haplotypes and life stages of wheat stem sawfly, we show a novel Spiroplasma species is ever-present and predominant, with phylogenomic analyses placing it as a member of the ixodetis clade of mollicutes. Using state-of-the-art metagenomic assembly and binning strategies we were able to reconstruct a 714 Kb, 72.7%-complete Spiroplasma genome, which represents just the second draft genome from the ixodetis clade of mollicutes. Functional annotation of the Spiroplasma genome indicated carbohydrate-metabolism involved PTS-mediated import of glucose and fructose followed by glycolysis to lactate, acetate, and propionoate. The bacterium also encoded biosynthetic pathways for essential vitamins B2, B3, and B9. We identified putative Spiroplasma virulence genes: cardiolipin and chitinase. These results identify a previously undescribed symbiosis between wheat stem sawfly and a novel Spiroplasma sp., availing insight into their molecular relationship, and may yield new opportunities for microbially-mediated pest control strategies.
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Affiliation(s)
- Carl J Yeoman
- Department of Animal & Range Sciences, Montana State University, Bozeman, MT, United States of America
| | - Laura M Brutscher
- Department of Animal & Range Sciences, Montana State University, Bozeman, MT, United States of America.,Department of Microbiology & Immunology, Montana State University, Bozeman, MT, United States of America
| | - Özcan C Esen
- Department of Medicine, University of Chicago, Chicago, IL, United States of America
| | - Furkan Ibaoglu
- Department of Animal & Range Sciences, Montana State University, Bozeman, MT, United States of America.,Department of Microbiology & Immunology, Montana State University, Bozeman, MT, United States of America
| | - Curtis Fowler
- Department of Animal & Range Sciences, Montana State University, Bozeman, MT, United States of America
| | - A Murat Eren
- Department of Medicine, University of Chicago, Chicago, IL, United States of America.,Marine Biological Laboratory, The Josephine Bay Paul Center for Comparative Molecular Biology and Evolution, Woods Hole, Massachuetts, United States of America
| | - Kevin Wanner
- Department of Plant Sciences & Plant Pathology, Montana State University, Bozeman, MT, United States of America
| | - David K Weaver
- Department of Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, United States of America
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12
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Thoma M, Missbach C, Jordan MD, Grosse-Wilde E, Newcomb RD, Hansson BS. Transcriptome Surveys in Silverfish Suggest a Multistep Origin of the Insect Odorant Receptor Gene Family. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00281] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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