辣椒病毒组：多种病毒及其准种的自然共感染
The pepper virome: natural co-infection of diverse viruses and their quasispecies.
作者信息
Jo Yeonhwa, Choi Hoseong, Kim Sang-Min, Kim Sun-Lim, Lee Bong Choon, Cho Won Kyong
机构信息
Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, 151-921, Republic of Korea.
Crop Foundation Division, National Institute of Crop Science, RDA, Wanju, 55365, South Korea.
出版信息
BMC Genomics. 2017 Jun 8;18(1):453. doi: 10.1186/s12864-017-3838-8.
BACKGROUND
The co-infection of diverse viruses in a host plant is common; however, little is known about viral populations and their quasispecies in the host.
RESULTS
Here, we report the first pepper viromes that were co-infected by different types of viral genomes. The pepper viromes are dominated by geminivirus DNA-A followed by a novel carlavirus referred to as Pepper virus A. The two pepper cultivars share similar viral populations and replications. However, the quasispecies for double-stranded RNA virus and two satellite DNAs were heterogeneous and homogenous in susceptible and resistant cultivars, respectively, indicating the quasispecies of an individual virus depends on the host.
CONCLUSIONS
Taken together, we provide the first evidence that the host plant resistant to viruses has an unrevealed antiviral system, affecting viral quasispecies, not replication.
背景
多种病毒在宿主植物中共感染很常见；然而，对于宿主中的病毒群体及其准种知之甚少。
结果
在此，我们报道了首个由不同类型病毒基因组共同感染的辣椒病毒组。辣椒病毒组以双生病毒DNA-A为主，其次是一种名为辣椒病毒A的新型香石竹潜隐病毒。两个辣椒品种具有相似的病毒群体和复制情况。然而，双链RNA病毒和两种卫星DNA的准种在感病品种和抗病品种中分别是异质的和同质的，这表明单个病毒的准种取决于宿主。
结论
综上所述，我们首次提供证据表明，对病毒具有抗性的宿主植物具有尚未揭示的抗病毒系统，该系统影响病毒准种，而非病毒复制。
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