Chromosome-level genome assembly of Dendrothrips minowai and genomic analysis highlights distinct adaptations to high polyphenols in tea plants
文献类型： 外文期刊
作者： Xiu, Chunli 1 ; Zhao, Dehai 1 ; Zhang, Jiahui 3 ; Liu, Haitao 4 ; Wang, Yusheng 3 ; Liu, Hangwei 5 ; Cai, Xiaoming 1 ; Luo, Zongxiu 1 ; Bian, Lei 1 ; Fu, Nanxia 1 ; Zhou, Li 1 ; Chen, Zongmao 1 ; Li, Zhaoqun 1 ;
作者机构： 1.Chinese Acad Agr Sci, Tea Res Inst, Key Lab Biol Genet & Breeding Special Econ Anim &, Minist Agr & Rural Affairs, Hangzhou 310008, Peoples R China
2.Anhui Agr Univ, Sch Tea Sci, Hefei, Peoples R China
3.Hunan Agr Univ, Coll Plant Protect, Hunan Prov Key Lab Biol & Control Plant Dis & Inse, Changsha, Peoples R China
4.Weifang Nat Resources & Planning Bur, Weifang, Peoples R China
5.Yangzhou Univ, Coll Plant Protect, Yangzhou, Peoples R China
关键词：
thrips;
期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：3.8； 五年影响因子：4.3 ）
ISSN： 1526-498X
年卷期： 2025 年 81 卷 7 期
页码：
收录情况： SCI
摘要： BACKGROUNDDendrothrips minowai Priesner, a significant pest in tea-producing regions of Asia, particularly China, damages tea plants (Camellia sinensis) by feeding on their tender leaves rich in polyphenols. Seven assembled genomes from the order Thysanoptera are currently available.RESULTSThis study presents the first chromosome-level genome assembly of D. minowai generated by PacBio Revio, Oxford Nanopore Technologies, MGI, and Hi-C technology. The assembled genome measures 350.11 Mb with 1269 contigs with a contig N50 of 536.34 Kb and a scaffold N50 of 16.86 Mb, organized across 19 chromosomes. A total of 16 730 protein-coding genes were identified, with 92.28% functionally annotated. The phylogenetic analysis reveals that D. minowai diverged approximately 103.2 million years ago, preceding all reported genomes of Thripidae species. Comparative genomic analysis identified 12 expanded and 172 contracted gene families of D. minowai, with expanded gene families linked to host plant metabolite processing and detoxification enzymes. Additionally, oligophagous thrips, D. minowai and Stenchaetothrips biformis, possess fewer chemosensory genes (gustatory receptors, odorant receptors, ionotropic receptors, chemosensory proteins, and odorant binding proteins) and detoxification genes (P450s, carboxyl/cholinesterases, UDP-glycosyltransferases) than polyphagous species (Frankliniella occidentalis and Thrips palmi). Interestingly, D. minowai exhibits an expansion in ABC transporter families, especially ABCG and ABCC, which is likely essential for detoxifying the high polyphenol content in tea plants.CONCLUSIONThis study provides another genome sequence for oligophagous thrips species, which enriches the genomic data for further studies on the evolution, host adaptation, and novel control strategies of thrips. (c) 2025 Society of Chemical Industry.
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