Two Negative-Strand RNA Viruses Identified in Watermelon Represent a Novel Clade in the Order Bunyavirales
文献类型： 外文期刊
作者：
Xin, Min
1
;
Cao, Mengji
2
;
Liu, Wenwen
1
;
Ren, Yingdang
3
;
Zhou, Xueping
1
;
Wang, Xifeng
1
;
作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Diseases & Insect Pests, Beijing, Peoples R China
2.Southwest Univ, Natl Cirtus Engn Res Ctr, Citrus Res Inst, Chongqing, Peoples R China
3.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou, Henan, Peoples R China
关键词： watermelon (Citrullus lanatus);Next Generation Sequencing (NGS);negative-sense single-stranded RNA virus;novel virus clade;Bunyavirales
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：5.64； 五年影响因子：6.32 ）
ISSN： 1664-302X
年卷期： 2017 年 8 卷
页码：
收录情况： SCI
摘要： Two novel negative-sense, single-stranded (ss) RNA viruses were identified in watermelon plants and named watermelon crinkle leaf-associated virus 1 and 2 (WCLaV-1 and -2), respectively. The multipartite genomes consist of three RNA molecules of similar to 6.8, 1.4, and 1.3 kb. The genomes and the deduced proteins of RNA1 and RNA3 show features resembling those of members in the genus Phlebovirus and Tenuivirus; however, the predicted proteins encoded by RNA2 are related to the movement protein (MP) in the genus Ophiovirus and Emaravirus. Furthermore, these two viruses define a novel clade in the family Phenuiviridae, order Bunyavirales, which is phylogenetically related to the viruses in the above four genera. Moreover, after mechanical inoculation with WCLaV-1 seedlings of the natural host watermelon plants develop crinkling similar to those observed in the field. These findings enhance our understanding of the evolution and the classification of ssRNA viruses.
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