浙江农业学报 ›› 2024, Vol. 36 ›› Issue (10): 2416-2425.DOI: 10.3969/j.issn.1004-1524.20231156

• 综述 • 上一篇    下一篇

辣椒抗番茄斑萎病毒研究进展

郭娜纳(), 李伟, 黄立娟, 张涛, 魏兵强*()   

  1. 甘肃农业大学 园艺学院,甘肃 兰州 730070
  • 收稿日期:2023-10-07 出版日期:2024-10-25 发布日期:2024-10-30
  • 作者简介:郭娜纳(2000—),女,甘肃平凉人,硕士研究生,研究方向为蔬菜遗传与分子育种。E-mail:g18093367179@163.com
  • 通讯作者: *魏兵强,E-mail:bqwei@gsau.edu.cn
  • 基金资助:
    甘肃省重点研发计划(21YF5NA091);兰州市人才项目(2021-RC-65);甘肃农业大学青年导师扶持项目(GAU-KYQD-2018-17)

Research progress on resistance of pepper to Tomato spotted wilt virus (TSWV)

GUO Nana(), LI Wei, HUANG Lijuan, ZHANG Tao, WEI Bingqiang*()   

  1. College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2023-10-07 Online:2024-10-25 Published:2024-10-30

摘要:

番茄斑萎病毒属(Tospovirus)是布尼亚病毒科(Bunyaviridae)中唯一能够侵染植物的病毒属,其核心成员番茄斑萎病毒(Tomato spotted wilt virus,TSWV)对全球农业构成了严峻挑战。TSWV作为一种负单链RNA型病毒,主要通过蓟马持久性增殖传播。辣椒受TSWV危害尤为严重,常表现为落叶、新叶黄化畸形、生长点坏死等多种复合症状,造成了巨大的经济损失。近年来,随着生物信息学研究的不断深入和辣椒全基因组测序的完成,研究者对TSWV的致病机理与辣椒抗TSWV机制的研究取得了较好的进展。PCR和逆转录PCR(RT-PCR)技术已被广泛应用于TSWV的精准检测,特别是针对核壳体蛋白基因(N-gene)设计的特异性引物,显著提升了检测效率与准确性。同时,抗性分子标记已广泛应用于TSWV抗性种质资源的检测与鉴定。选育抗病品种是防治TSWV最有效的途径,通过广泛筛选国内外抗性种质资源,并结合分子标记技术,已成功培育出中椒115等抗TSWV辣椒新品种。此外,TSWV还可通过抗原结构变异或宿主免疫抑制等免疫逃逸机制,成功规避植物防御系统,从而加剧防控难度。因此,未来研究需聚焦于抗性遗传资源的深度挖掘、育种技术体系的完善与新型抗性基因的发掘,以培育出更广泛、更持久抗性的辣椒新品种。

关键词: 辣椒, 番茄斑萎病毒, 抗性, 种质创新

Abstract:

Tospovirus, the only genus of viruses within the Bunyaviridae family that can invade plants, poses a significant challenge to global agriculture. Its primary member, Tomato spotted wilt virus (TSWV), is particularly detrimental to the pepper industry. TSWV, a negative single-stranded RNA virus, is primarily transmitted through the persistent proliferation of thrips. Peppers frequently exhibit a range of complex symptoms, including leaf shedding, yellowing of new leaves, and necrosis at the growth point when infected with TSWV. In recent years, as bioinformatics research has advanced and the whole-genome sequencing of pepper has been completed, researchers have made significant progress in understanding the pathogenesis of TSWV and the mechanisms of resistance to TSWV in pepper plants. In terms of TSWV detection, PCR and RT-PCR technologies have been widely used for the precise detection of TSWV, especially the specific primers designed for the nuclear capsid protein gene (N-gene), which have significantly improved the detection efficiency and accuracy. Concurrently, molecular markers associated with resistance have been extensively applied for detecting and characterizing germplasm resources resistant to TSWV. The most effective strategy for preventing and controlling TSWV is to develop disease-resistant varieties. New varieties of resistant to TSWV in pepper such as ‘Zhongjiao 115’ have been successfully cultivated via extensive screening of resistant germplasm resources at home and abroad, combined with molecular marker technology. In addition, the virus can effectively evade the plant defense system through immune evasion strategies, such as antigenic structural mutations or host immunosuppression, thereby increasing the challenge of prevention and control. So, future research needs to focus on the in-depth mining of resistance genetic resources, improvement of breeding technology system and discovery of novel resistance genes, in order to breed pepper varieties with broader and more durable resistance.

Key words: pepper, Tomato spotted wilt virus, germplasm innovation, resistance

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