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Liu Y, Li X, Lin L. Transcriptome of the pygmy grasshopper Formosatettix qinlingensis (Orthoptera: Tetrigidae). PeerJ 2023; 11:e15123. [PMID: 37016680 PMCID: PMC10066883 DOI: 10.7717/peerj.15123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 03/03/2023] [Indexed: 04/03/2023] Open
Abstract
Formosatettix qinlingensis (Zheng, 1982) is a tiny grasshopper endemic to Qinling in China. For further study of its transcriptomic features, we obtained RNA-Seq data by Illumina HiSeq X Ten sequencing platform. Firstly, transcriptomic analysis showed that transcriptome read numbers of two female and one male samples were 25,043,314, 24,429,905, and 25,034,457, respectively. We assembled 65,977 unigenes, their average length was 1,072.09 bp, and the length of N50 was 2,031 bp. The average lengths of F. qinlingensis female and male unigenes were 911.30 bp, and 941.82 bp, and the N50 lengths were 1,745 bp and 1,735 bp, respectively. Eight databases were used to annotate the functions of unigenes, and 23,268 functional unigenes were obtained. Besides, we also studied the body color, immunity and insecticide resistance of F. qinlingensis. Thirty-nine pigment-related genes were annotated. Some immunity genes and signaling pathways were found, such as JAK-STAT and Toll-LIKE receptor signaling pathways. There are also some insecticide resistance genes and signal pathways, like nAChR, GST and DDT. Further, some of these genes were differentially expressed in female and male samples, including pigment, immunity and insecticide resistance. The transcriptomic study of F. qinlingensis will provide data reference for gene prediction and molecular expression study of other Tetrigidae species in the future. Differential genetic screening of males and females provides a basis for studying sex and immune balance in insects.
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Affiliation(s)
- Yuxin Liu
- Shaanxi Normal University, Xi’an, China
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Béliveau C, Gagné P, Picq S, Vernygora O, Keeling CI, Pinkney K, Doucet D, Wen F, Spencer Johnston J, Maaroufi H, Boyle B, Laroche J, Dewar K, Juretic N, Blackburn G, Nisole A, Brunet B, Brandão M, Lumley L, Duan J, Quan G, Lucarotti CJ, Roe AD, Sperling FAH, Levesque RC, Cusson M. The Spruce Budworm Genome: Reconstructing the Evolutionary History of Antifreeze Proteins. Genome Biol Evol 2022; 14:evac087. [PMID: 35668612 PMCID: PMC9210311 DOI: 10.1093/gbe/evac087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 11/13/2022] Open
Abstract
Insects have developed various adaptations to survive harsh winter conditions. Among freeze-intolerant species, some produce "antifreeze proteins" (AFPs) that bind to nascent ice crystals and inhibit further ice growth. Such is the case of the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae), a destructive North American conifer pest that can withstand temperatures below -30°C. Despite the potential importance of AFPs in the adaptive diversification of Choristoneura, genomic tools to explore their origins have until now been limited. Here we present a chromosome-scale genome assembly for C. fumiferana, which we used to conduct comparative genomic analyses aimed at reconstructing the evolutionary history of tortricid AFPs. The budworm genome features 16 genes homologous to previously reported C. fumiferana AFPs (CfAFPs), 15 of which map to a single region on chromosome 18. Fourteen of these were also detected in five congeneric species, indicating Choristoneura AFP diversification occurred before the speciation event that led to C. fumiferana. Although budworm AFPs were previously considered unique to the genus Choristoneura, a search for homologs targeting recently sequenced tortricid genomes identified seven CfAFP-like genes in the distantly related Notocelia uddmanniana. High structural similarity between Notocelia and Choristoneura AFPs suggests a common origin, despite the absence of homologs in three related tortricids. Interestingly, one Notocelia AFP formed the C-terminus of a "zonadhesin-like" protein, possibly representing the ancestral condition from which tortricid AFPs evolved. Future work should clarify the evolutionary path of AFPs between Notocelia and Choristoneura and assess the role of the "zonadhesin-like" protein as precursor of tortricid AFPs.
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Affiliation(s)
- Catherine Béliveau
- Laurentian Forestry Centre, Natural Resources Canada, Quebec City, Quebec, Canada
| | - Patrick Gagné
- Laurentian Forestry Centre, Natural Resources Canada, Quebec City, Quebec, Canada
| | - Sandrine Picq
- Laurentian Forestry Centre, Natural Resources Canada, Quebec City, Quebec, Canada
| | - Oksana Vernygora
- Department of Entomology, University of Kentucky, Lexington, Kentucky, USA
| | - Christopher I Keeling
- Laurentian Forestry Centre, Natural Resources Canada, Quebec City, Quebec, Canada
- Département de biochimie, de microbiologie et de bio-informatique, Université Laval, Quebec City, Quebec, Canada
| | - Kristine Pinkney
- Great Lakes Forestry Centre, Natural Resources Canada, Sault Ste. Marie, Ontario, Canada
| | - Daniel Doucet
- Great Lakes Forestry Centre, Natural Resources Canada, Sault Ste. Marie, Ontario, Canada
| | - Fayuan Wen
- Great Lakes Forestry Centre, Natural Resources Canada, Sault Ste. Marie, Ontario, Canada
- Center for Sickle Cell Disease, College of Medicine, Howard University, Washington DC, USA
| | - J Spencer Johnston
- Department of Entomology, Texas A&M University, 2475 College Station, Texas, USA
| | - Halim Maaroufi
- Institut de biologie intégrative et des systèmes, Université Laval, Quebec City, Quebec, Canada
| | - Brian Boyle
- Institut de biologie intégrative et des systèmes, Université Laval, Quebec City, Quebec, Canada
| | - Jérôme Laroche
- Institut de biologie intégrative et des systèmes, Université Laval, Quebec City, Quebec, Canada
| | - Ken Dewar
- Quantitative Life Sciences, McGill University, Montreal, Quebec, Canada
| | - Nikoleta Juretic
- Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Gwylim Blackburn
- Pacific Forestry Centre, Natural Resources Canada, Victoria, British Columbia, Canada
| | - Audrey Nisole
- Laurentian Forestry Centre, Natural Resources Canada, Quebec City, Quebec, Canada
| | - Bryan Brunet
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, Ontario, Canada
| | - Marcelo Brandão
- Laboratório de Biologia Integrativa e Sistêmica - CBMEG/UNICAMP, Campinas, Brazil
| | - Lisa Lumley
- Alberta Biodiversity Monitoring Institute, University of Alberta, Edmonton, Alberta, Canada
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Jun Duan
- Great Lakes Forestry Centre, Natural Resources Canada, Sault Ste. Marie, Ontario, Canada
- University of British Columbia, Vancouver, British Columbia, Canada
| | - Guoxing Quan
- Great Lakes Forestry Centre, Natural Resources Canada, Sault Ste. Marie, Ontario, Canada
| | | | - Amanda D Roe
- Great Lakes Forestry Centre, Natural Resources Canada, Sault Ste. Marie, Ontario, Canada
| | - Felix A H Sperling
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Roger C Levesque
- Institut de biologie intégrative et des systèmes, Université Laval, Quebec City, Quebec, Canada
| | - Michel Cusson
- Laurentian Forestry Centre, Natural Resources Canada, Quebec City, Quebec, Canada
- Département de biochimie, de microbiologie et de bio-informatique, Université Laval, Quebec City, Quebec, Canada
- Institut de biologie intégrative et des systèmes, Université Laval, Quebec City, Quebec, Canada
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