Occurrence and characterization of virus species associated with black pepper (piper nigrum l.) virus diseases in Hainan province, China
文献类型： 外文期刊
作者： Che, Haiyan 1 ; Cao, Xueren 1 ; Liu, Peipei 1 ; Luo, Daquan 1 ;
作者机构： 1.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Minist Agr & Rural Affairs,Key Lab Integrated Pes, Hainan Key Lab Monitoring & Control Trop Agr Pest, Haikou, Hainan, Peoples R China
关键词： phylogenetic analysis; Piper nigrum c.v. Reyin-1; piper yellow mottle virus; RT-PCR
期刊名称：JOURNAL OF PHYTOPATHOLOGY （ 影响因子：1.789； 五年影响因子：1.574 ）
ISSN： 0931-1785
年卷期： 2021 年 169 卷 4 期
页码：
收录情况： SCI
摘要： Black pepper (Piper nigrum L.) is one of the most ancient spice crops in the world. Hainan Province is the largest black pepper-producing region in China. Viral disease is one of the main factors affecting black pepper. However, there are rarely studies on black pepper viral disease in China. We performed a survey in five major black pepper-growing counties (Qionghai, Wenchang, Wanning, Haikou and Ding'an) of Hainan Province and collected 589 samples, with virus-like symptoms from 2014 to 2019. Various viruses were identified including cucumber mosaic virus (CMV), piper yellow mottle virus (PYMoV), Piper DNA virus 1 (PDV-1) and Piper DNA virus 2 (PDV-2) using small RNA deep sequencing. The RT-PCR screening of field samples indicated three types of infection: CMV alone (5.56%), PYMoV + PDV-1 + PDV-2 (25.00%) and PYMoV + CMV +PDV-1 + PDV-2 (69.44%). The data suggested that PYMoV might be the main pathogen causing virus diseases of black pepper. Two complete genome sequences of PYMoV were obtained. Phylogenetic analysis showed that PYMoV isolates from China were placed in a branch distinct from PYMoV isolates from India. To our knowledge, this is the first report of PYMoV, PDV-1 and PDV-2 naturally infecting black pepper, and the first genome sequence of PYMoV in China.
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