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Grapevine leafroll-associated virus 3 (GLRaV-3) is a positive sense, single stranded RNA virus that has a detrimental effect on wine and table grapes worldwide. Previous studies have shown that GLRaV-3, like other closteroviruses produces subgenomic (sg) RNAs during replication and that these sgRNAs are deployed for the expression of the ORFs on the 3′ half of the genome. In this study a dsRNA blot...
Double stranded RNA, isolated from 44 pooled randomly selected vines from a diseased South African vineyard, has been used in a deep sequencing analysis to build a census of the viral population. The dsRNA was sequenced in an unbiased manner using the sequencing-by-synthesis technology offered by the Illumina Genome Analyzer II and yielded 837 megabases of metagenomic sequence data. Four known viral...
Grapevine fanleaf virus (GFLV) is responsible for severe fanleaf degeneration in grapevines of all major wine producing regions of the world, including South Africa. In order to successfully control the spread of the virus, specific and reliable diagnostic assays are necessary. The genetic variability of 12 GFLV isolates recovered from naturally infected grapevine plants in the Western Cape region...
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