Incidence and Distribution of Four Viruses Causing Diverse Mosaic Diseases of Sugarcane in China
Incidence and Distribution of Four Viruses Causing Diverse Mosaic Diseases of Sugarcane in China
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DOI：
10.3390/agronomy12020302
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发表时间：
2022-02-01
期刊：
影响因子：
3.7
通讯作者：
Gao, San-Ji
中科院分区：
文献类型：
--
作者：
He, Er-Qi;Bao, Wen-Qing;Gao, San-Ji
由各种病毒引起的甘蔗花叶病在大多数甘蔗种植国都有报道，并威胁着全球的糖业生产。对中国的花叶病及其病原病毒缺乏广泛、系统的研究。本研究从中国地区8个省(市)市采集了90 1个表现花叶病症状的叶片样品，用4对特异的引物对高粱花叶病毒、甘蔗花叶病毒、甘蔗条纹花叶病毒和玉米黄花叶病毒进行了检测。在检测的901份样本中，38.5%(347/901)的样本单独感染了四种病毒中的一种。42.6%(384/901)的标本被两种或两种以上病毒感染。甘蔗花叶病毒病发病率最高的是花叶病毒病(70.1%)，其次是花叶病毒病(33.4%)和花叶病毒病(30.3%)，最低的是花叶病毒病(5.1%)。在8个甘蔗种植省份发现了3种病毒(SRMV、SCMV和SCSMV)，而MaYMV仅在福建、广西和四川三省发现。甘蔗样品中普遍存在三种主要病毒的混合侵染，其中以SrMV+SCMV和SrMV+SCSMV最为常见。本研究系统地测定了与甘蔗花叶病有关的4种核糖核酸病毒的发生和分布，为指导中国甘蔗花叶病防治策略的制定提供依据。
Mosaic diseases of sugarcane caused by various viruses have been reported in most sugarcane planting countries and threaten global sugar production. There is a lack of extensive, systematic investigation of mosaic diseases and their causal viruses in China. In this study, a total of 901 leaf samples showing mosaic symptoms were collected from commercial fields in eight provincial regions in China and tested for sorghum mosaic virus (SrMV), sugarcane mosaic virus (SCMV), sugarcane streak mosaic virus (SCSMV), and maize yellow mosaic virus (MaYMV) using RT-PCR with four specific primer pairs. Of 901 tested samples, 38.5% (347/901) of samples were infected with one of the four viruses alone. Infection by two or more viruses was seen for 42.6% (384/901) of samples. The highest incidence of virus-causing sugarcane mosaic disease was SrMV (70.1%), followed by SCMV (33.4%) and SCSMV (30.3%), and the lowest incidence was seen for MaYMV (5.1%). Three viruses (SrMV, SCMV, and SCSMV) were found in eight sugarcane-planting provinces, whereas MaYMV was only found in Fujian, Guangxi, and Sichuan provinces. Mixed infections of the three main viruses, particularly for SrMV + SCMV and SrMV + SCSMV, were commonly found in the sugarcane samples. Our systematic determination of the occurrence and distribution of four RNA viruses associated with sugarcane mosaic diseases can provide evidence to guide the development of strategies for the prevention and control of sugarcane mosaic diseases in China.