A black-streaked dwarf disease on rice in China is caused by a novel fijivirus

文献类型： 外文期刊

第一作者： Zhang, Heng-Mu

作者： Zhang, Heng-Mu;Chen, Jian-Ping;Zhang, Heng-Mu;Yang, Jian;Chen, Jian-Ping;Adams, M. J.

作者机构：

期刊名称：ARCHIVES OF VIROLOGY （ 影响因子：2.574； 五年影响因子：2.466 ）

ISSN： 0304-8608

年卷期： 2008 年 153 卷 10 期

页码：

收录情况： SCI

摘要： An isolate of a plant reovirus causing severe stunting and dark leaf symptoms on rice from Guangdong, China, was similar in virion morphology and serologically related to rice black-streaked dwarf virus (RBSDV). The electrophoretic profiles of genome segments of the two viruses in agarose or polyacrylamide gel were indistinguishable. The four genome segments of the new isolate corresponding to RBSDV S7-S10 were amplified by ligation RT-PCR and sequenced. The size and organization of each genome segment was very similar to its counterparts in RBSDV, maize rough dwarf virus (MRDV), and mal de Rio Cuarto virus (MRCV). Sequence identity was greatest to RBSDV and MRDV (ranging from about 60-85% depending on the protein), but identities were always much lower than those between RBSDV and MRDV. These comparisons and phylogenetic analyses suggested that the virus represents a new species in genus Fijivirus group 2, tentatively named Rice black-streaked dwarf virus-2.

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