浙江农业科学 ›› 2026, Vol. 67 ›› Issue (10): 2470-2474.DOI: 10.16178/j.issn.0528-9017.20250874

• 植保技术 • 上一篇    下一篇

中国西瓜上新病毒Watermelon botourmiavirus 1的鉴定及其分子特性分析

王浩然1,2(), 王宇聪1, 肖鸣3, 明珂4, 吴会杰5(), 冯国忠1()   

  1. 1.中国农业科学院 中国水稻研究所,水稻生物育种全国重点实验室,浙江 杭州 310006
    2.襄阳市农业科学院,湖北 襄阳 441057
    3.浙江省植保检疫与农药管理总站,浙江 杭州 310020
    4.台州市农业生态保护与质量安全中心,浙江 台州 318000
    5.中国农业科学院 郑州果树研究所,河南省果树瓜类生物学重点实验室,河南 郑州 450009
  • 收稿日期:2025-11-28 出版日期:2026-10-11 发布日期:2026-10-19
  • 通讯作者: 吴会杰,冯国忠
  • 作者简介:吴会杰,E-mail:wuhuijie@caas.cn。
    冯国忠,E-mail:fengguozhong@caas.cn
    王浩然,主要从事农产品质量检验研究。E-mail:wanghaoran_12@163.com。
  • 基金资助:
    浙江省“三农九方”科技协作计划项目(2024SNJF072)

Identification of a novel virus Watermelon botourmiavirus 1 in watermelon in China and analysis of its molecular characteristics

WANG Haoran1,2(), WANG Yucong1, XIAO Ming3, MING Ke4, WU Huijie5(), FENG Guozhong1()   

  1. 1.State Key Laboratory of Rice Biology and Breeding,China National Rice Research Institute,Chinese Academy of Agricultural Sciences,Hangzhou 310006,Zhejiang
    2.Xiangyang Academy of Agricultural Sciences,Xiangyang 441057,Hubei
    3.Zhejiang Provincial Station of Plant Protection,Quarantine,and Pesticide Management,Hangzhou 310020,Zhejiang
    4.Taizhou Agricultural Ecological Protection and Quality Safety Center,Taizhou 318000,Zhejiang
    5.Henan Key Laboratory of Fruit and Cucurbit Biology,Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou 450009,Henan
  • Received:2025-11-28 Online:2026-10-11 Published:2026-10-19
  • Contact: WU Huijie,FENG Guozhong

摘要:

本研究从浙江省台州市采集了表现花叶、褪绿及斑驳等症状的西瓜病叶样本。为明确其病原类型,提取病叶总RNA进行宏转录组测序,经序列拼接与比对后,鉴定出一个属于Botourmiaviridae科的新病毒成员,并将其命名为Watermelon botourmiavirus 1(WBV1)。通过RT-PCR和DNA测序检测发现,在10份西瓜病叶样本中,有6份检测到该病毒的目标序列。系统发育分析显示,WBV1的RdRp蛋白与Botourmiaviridae科Ourmiavirus属病毒的相应蛋白具有较高的氨基酸序列同源性。本研究首次报道了侵染我国西瓜植株的WBV1病毒,为明确该病毒病的发生机理与防控策略提供了理论依据。

关键词: 西瓜, 病毒鉴定, Watermelon botourmiavirus 1

Abstract:

In this study,watermelon leaf samples showing symptoms of mosaic,chlorosis,and mottling were collected from Taizhou,Zhejiang Province. To identify the type of pathogen,total RNA was extracted from the diseased leaves and subjected to metatranscriptomic sequencing. Through sequence assembly and alignment,a novel virus belonging to the family Botourmiaviridae was identified and named Watermelon botourmiavirus 1(WBV1). RT-PCR and DNA sequencing confirmed that the target sequences of the virus were present in 6 out of the 10 collected samples. Phylogenetic analysis showed that the RdRp protein of WBV1 shares high amino acid sequence identity with those of viruses in the genus Ourmiavirus,family Botourmiaviridae. This study provides the first report of WBV1 infecting watermelon plants in China,providing a theoretical basis for understanding the occurrence mechanisms and developing control strategies for this viral disease.

Key words: watermelon, virus identification, Watermelon botourmiavirus 1

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