NDLI: Molecular variation and expansion of a rice black-streaked dwarf virus population based on analysis of segment 1 in Jining, China

Content Provider	Springer Nature Link
Author	Zhou, Yu Meng, Qingchang Chen, Yanping Wu, Jirong Hao, Zhuanfang Wang, Zhenhua Zhang, Degui Li, Mingshun Yong, Hongjun Zhang, Shihuang Li, Xinhai Weng, Jianfeng
Copyright Year	2016
Abstract	To analyze the variation in rice black-streaked dwarf virus (RBSDV) in an area with high incidence of maize rough dwarf disease (MRDD), the RBSDV S1 segment in a collection of 100 maize isolates (sample population A100) from Jining, Shandong Province, was sequenced. An additional 21 maize and rice isolates (subpopulation B21) that were sampled from nine other geographic locations in China in 2012 and 2013 were used as a control. A total of 914 nucleotide mutations, including 239 singleton variable and 675 parsimony-informative sites were detected among the segment 1 (S1) sequences from A100. A total of 614 nucleotide mutation sites including 164 singleton variable and 450 parsimony-informative sites were detected among the S1 sequences from B21, while 97.55 % of the parsimony-informative sites from B21 were also detected in A100. The nucleotide sequence diversities of A100 (π = 0.0479) and B21 (π = 0.0396) were significantly different (P = 0.0002) but showed similar trends. Phylogenetic analysis showed that the 121 RBSDV isolates could be classified into two groups based on their S1 sequences, independent of subpopulation, with a combination of host species and locations. A100 and B21 were under the same level of negative and purifying selection, with Ka/Ks ratios of 0.0337 and 0.0369, respectively. The combined RBSDV population, including 121 isolates, was expanding, with negative values for Tajima’s D, Fu and Li’s D, and Fu and Li’s F in both A100 and B21, except Tajima’s D in A100. Based on S1, the RBSDV population in China has long-term phytogeographic stability, and there do not appear to be any newly-emerging strains.
Starting Page	3435
Ending Page	3443
Page Count	9
File Format	PDF
ISSN	03048608
Journal	Archives of Virology
Volume Number	161
Issue Number	12
e-ISSN	14328798
Language	English
Publisher	Springer Vienna
Publisher Date	2016-09-14
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Virology Medical Microbiology Infectious Diseases
Content Type	Text
Resource Type	Article
Subject	Virology Medicine

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