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中国农学通报 ›› 2026, Vol. 42 ›› Issue (9): 197-206.doi: 10.11924/j.issn.1000-6850.casb2025-0603

• 植物保护·农药 • 上一篇    下一篇

甘薯新储藏害虫一点缀螟的鉴定及线粒体基因组分析

汤法江1,2(), 周诗栩1,2, 黄立飞2, 王章英2, 邹宏达2, 柯杰3, 陈新亮2(), 张少润4()   

  1. 1 华南农业大学农学院, 广州 510642
    2 广东省农业科学院作物研究所/广东省农作物遗传改良重点实验室, 广州 510640
    3 汕尾市农业科学院, 广东汕尾 516600
    4 陆丰市农业农村发展中心, 广东汕尾 516500
  • 收稿日期:2025-07-16 修回日期:2026-01-15 出版日期:2026-05-15 发布日期:2026-05-15
  • 通讯作者:
    张少润,男,1975年出生,广东陆丰人,高级农艺师,大专,研究方向:农业技术推广。通信地址:516500 陆丰市东海街道南堤路 7号,Tel:0660-8991216,E-mail:
    陈新亮,男,1982年出生,河南叶县人,高级农艺师,学士,本科,研究方向:甘薯遗传育种。通信地址:510640 中国广东省广州市天河区五山金颖路西二街18号,E-mail:
  • 作者简介:

    汤法江,男,2000年出生,安徽淮南人,在读研究生,研究方向:甘薯抗病遗传育种。通信地址:516600中国广东省汕尾市城区汕尾农业科学院,E-mail:

  • 基金资助:
    国家甘薯产业技术体系“广州综合试验站”(CARS-10); 国家重点研发计划项目“广东省薯类病虫害绿色防控技术体系集成示范”(2024YFD1401203-5); 广东省现代农业产业技术体系创新团队建设专项资金资助“旱地作物创新团队病虫害防控岗位”(2024CXTD07)

Identification and Mitochondrial Genome Analysis of a New Stored Pest of Sweetpotato: Paralipsa gularis (Zeller)

TANG Fajiang1,2(), ZHOU Shixu1,2, HUANG Lifei2, WANG Zhangying2, ZOU Hongda2, KE Jie3, CHEN Xinliang2(), ZHANG Shaorun4()   

  1. 1 College of Agriculture, South China Agricultural University, Guangzhou 510642
    2 Crop Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Key Laboratory of Crops Genetics Improvement, Guangzhou 510640
    3 Shanwei City Agricultural Science Academy, Shanwei, Guangdong 516600
    4 Lufeng Agricultural and Rural Development Center, Shanwei, Guangdong 516500
  • Received:2025-07-16 Revised:2026-01-15 Published:2026-05-15 Online:2026-05-15

摘要:

本研究旨在明确甘薯储藏期新害虫一点缀螟的基础生物学信息及其在螟蛾总科昆虫中的系统发育地位,为该害虫的准确识别和有效防控奠定基础。通过形态学观察和cox1基因分析对该害虫进行了鉴定,使用Illumina MiSeq测序技术完成了其线粒体基因组的测序,分析其基因组的结构特征和碱基组成。基于近缘物种的线粒体全基因组序列,应用最大似然法(ML)构建了系统发育树,从而揭示该害虫与近缘种的系统发育关系。结果表明:甘薯储藏期新害虫确认为一点缀螟Paralipsa gularis (Zeller),其线粒体基因组全长为15393 bp,A+T含量为79.67%,包含13个蛋白编码基因、22个tRNA基因和2个rRNA基因,共37个基因,以及1个非编码的控制区域。13个蛋白质编码基因中除cox1基因起始密码子为CGA,其余基因的起始密码子均为典型的ATN,nad2cox1cox2nad4基因的终止密码子为不完全终止密码子T--,其余蛋白编码基因的终止密码子为典型的TAA或TAG。22个tRNA中,仅trnS1-GCT的DHU臂缺失,其余均可以形成典型的三叶草结构。系统发育分析表明,一点缀螟(甘薯)隶属于螟蛾总科螟蛾科蜡螟亚科,与米蛾(Corcyra cephalonica)Stainton的亲缘关系最近。本研究首次发现了一点缀螟为害甘薯薯块,明确了其形态特征和线粒体基因组序列,为该害虫的识别、防控和研究提供了基础数据。

关键词: 甘薯, 虫害, 一点缀螟, 形态特征, 线粒体基因组

Abstract:

This study aims to provide basic information on the new storage pest of sweet potatoes, Paralipsa gularis (Zeller), clarifying its phylogenetic relationship within the order Lepidoptera. This lays the basic for the identification and control of this pest. The author identified the morphological characteristics and cox1 gene of the pest, and utilized Illumina MiSeq sequencing technology to sequence its mitochondrial genome. The structural features and base composition were analyzed, and a phylogenetic tree was constructed using the maximum likelihood method (ML) based on the complete mitochondrial genomic sequences of closely related species to analyze the phylogenetic relationship with related species. The results indicate that the new sweetpotato storage pest is identified as P. gularis (Zeller), with a complete mitochondrial genome length of 15393 bp, an A+T content of 79.67%, and comprising 13 protein-coding genes, 22 tRNA genes, and 2 rRNA genes, totaling 37 genes, along with one non-coding control region. Among the 13 protein-coding genes, the start codon of the cox1 gene is CGA, while the start codons of the other genes are typical ATN. The termination codons for the nad2, cox1, cox2, and nad4 genes are incomplete stop codons (T--), whereas the termination codons for the other protein-coding genes are typical TAA or TAG. Of the 22 tRNA, only trnS1-GCT lacks the DHU arm, while the others can form typical cloverleaf structures. Phylogenetic analysis reveals that P. gularis (sweetpotato) is a member of the family Pyralidae (subfamily Galleriinae, superfamily Pyraloidea), closely related to Corcyra cephalonica (Stainton). This study is the first to report that P. gularis (Zeller) damages sweetpotato storage roots, and its distinct morphological characteristics and mitochondrial genomic sequence are clarified, which provide fundamental data for the identification, control, and research of this pest.

Key words: sweetpotato, pest, Paralipsa gularis (Zeller), morphological characteristics, mitochondrial genome

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