Home HOME Acta Virologica 2017 Acta Virologica Vol.61, No.2, p.217-222, 2017

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ISSN 0001-723X
E-ISSN 1336-2305

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Acta Virologica Vol.61, No.2, p.217-222, 2017

Title: Genetic diversity of banana bunchy top virus isolates from China
Author: XUE-QIN RAO, ZI-LIN WU, LIN ZHOU, JIE SUN, HUA-PING LI

Abstract: Banana bunchy top virus (BBTV) (the genus Babuvirus, the family Nanoviridae) is a single-stranded circular DNA virus with a genome composed of six components designated as DNA-R, -U3, -S, -M, -C, and -N. This study analyzed the nucleotide identities of the DNA-R of 23 isolates from banana-producing provinces of China, including Guangdong, Hainan, Guangxi, and Yunnan. Results showed that the nucleotide identity of DNA-R was 72.3–100%. Phylogenetic analysis indicated that these BBTV isolates were clustered in different subgroups within the Asian group (AG). Sequence analysis of the five other components (DNA -U3, -S, -M, -C, and -N) of the five isolates from China confirmed the results established for DNA-R of these BBTV isolates. This study suggested that the variation of DNA-R from Chinese BBTV isolates was considerably higher than the variation of other AG isolates, but their genetic diversity was low.

Keywords: banana; banana bunchy top virus; genetic diversity; phylogenetic analysis
Published online: 19-May-2017
Year: 2017, Volume: 61, Issue: 2 Page From: 217, Page To: 222
doi:10.4149/av_2017_02_13


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