Blackcurrant Leaf Chlorosis Associated Virus: Evidence of the Presence of Circular RNA during Infections

Viruses
Delano JamesDaniel Sanderson

Abstract

Blackcurrant leaf chlorosis associated virus (BCLCaV) was detected recently by next-generation sequencing (NGS) and a new and distinct species in the genus Idaeovirus was proposed. Analysis of NGS-derived paired-end reads revealed the existence of bridge reads encompassing the 3'-terminus and 5'-terminus of RNA-2 or RNA-3 of BCLCaV. The full RNA-2 or RNA-3 could be amplified using outward facing or abutting primers; also, RNA-2/RNA-3 could be detected even after three consecutive RNase R enzyme treatments, with denaturation at 95 °C preceding each digestion. Evidence was obtained indicating that there are circular forms of BCLCaV RNA-2 and RNA-3.

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Methods Mentioned

BETA
PCR

Software Mentioned

CLC Genomics Workbench
mfold
RACE
Clone Manager
RNAfold Vienna

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