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Corchorus yellow vein virus, a New World geminivirus from the Old World

Peter Revill^1,

¹ Tropical Crops and Biocommodities, Institute of Health and Biomedical Innovation, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia
² Centre for Information Technology Innovation, Faculty of Information Technology, Queensland University of Technology, Brisbane, QLD 4001, Australia
³ Department of Plant Pathology, Hanoi Agriculture University, Gia Lam, Hanoi, Vietnam

Correspondence
James Dale
j.dale{at}qut.edu.au

A bipartite begomovirus infecting Jute mallow (Corchorus capsularis, Tilliaceae) in Vietnam was identified using novel degenerate PCR primers. Analysis of this virus, which was named Corchorus yellow vein virus (CoYVV), showed that it was more similar to New World begomoviruses than to viruses from the Old World. This was based on the absence of an AV2 open reading frame, the presence of an N-terminal PWRLMAGT motif in the coat protein and phylogenetic analysis of the DNA A and DNA B nucleotide and deduced amino acid sequences. Evidence is provided that CoYVV is probably indigenous to the region and may be the remnant of a previous population of New World begomoviruses in the Old World.

The GenBank/EMBL/DDBJ accession numbers for the sequences reported in this paper are AY727903 and AY27904.

Present address: Victorian Infectious Diseases Reference Laboratory, 10 Wreckyn Street, North Melbourne, VIC 3051, Australia.