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Characterization of the RNA Transcription Profile of Bombyx mori Bidensovirus.


ABSTRACT: Bombyx mori bidensovirus (BmBDV) is a single-stranded DNA (ssDNA) virus from the genus Bidensovirus of the Bidnaviridae family, which, thus far, solely infects insects. It has a unique genome that contains bipartite DNA molecules (VD1 and VD2). In this study, we explored the detailed transcription mapping of the complete BmBDV genome (VD1 and VD2) by rapid amplification of cDNA ends (RACE), reverse transcription quantitative real-time PCR (RT-qPCR), and luciferase assays. For the first time, we report the transcription map of VD2. Our mapping of the transcriptional start sites reveals that the NS genes in VD1 have separate transcripts that are derived from overlapping promoters, P5 and P5.5. Thus, our study provides a strategy for alternative promoter usage in the expression of BmBDV genes.

SUBMITTER: Li R 

PROVIDER: S-EPMC6521256 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature

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Characterization of the RNA Transcription Profile of <i>Bombyx mori</i> Bidensovirus.

Li Rui R   Chang Pengfei P   Lü Peng P   Hu Zhaoyang Z   Chen Keping K   Yao Qin Q   Yu Qian Q  

Viruses 20190403 4


<i>Bombyx mori</i> bidensovirus (BmBDV) is a single-stranded DNA (ssDNA) virus from the genus <i>Bidensovirus</i> of the Bidnaviridae family, which, thus far, solely infects insects. It has a unique genome that contains bipartite DNA molecules (VD1 and VD2). In this study, we explored the detailed transcription mapping of the complete BmBDV genome (VD1 and VD2) by rapid amplification of cDNA ends (RACE), reverse transcription quantitative real-time PCR (RT-qPCR), and luciferase assays. For the f  ...[more]

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