Plant Pathol J > Volume 28(4); 2012 > Article
The Plant Pathology Journal 2012;28(4):428-432.
DOI: https://doi.org/10.5423/PPJ.NT.03.2012.0035    Published online December 31, 2012.
The Complete Genome Sequence of Southern rice black-streaked dwarf virus Isolated from Vietnam
Thi Sau Dinh, Cui Ji Zhou, Xiu Ling Cao, Cheng Gui Han, Jia Lin Yu, Da Wei Li, Yong Liang Zhang
Abstract
We determined the complete genome sequence of a Vietnamese isolate of Southern rice black-streaked dwarf virus (SRBSDV). Whole genome comparisons and phylogenetic analysis showed that the genome of the Vietnamese isolate shared high nucleotide sequence identities of over 97.5% with those of the reported Chinese isolates, confirming a common origin of them. Moreover, the greatest divergence between different SRBSDV isolates was found in the segments S1, S3, S4 and S6, which differs from the sequence alignment results between SRBSDV and Rice black streaked dwarf virus (RBSDV), implying that SRBSDV evolved in a unique way independent of RBSDV. This is the first report of a complete nucleotide sequence of SRBSDV from Vietnam and our data provides new clues for further understanding of molecular variation and epidemiology of SRBSDV in Southeast Asia.
Key Words: phylogenetic analysis, sequence, Southern rice black-streaked dwarf virus, vietnamese isolate


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