A begomovirus associated with yellow vein symptoms of Oxalis debilis

Document Type

Article

Publication Date

5-1-2015

Abstract

‘Gold Veined Oxalis’ (Oxalis debilis) is an ornamental plant cultivar with attractive yellow vein foliage. After grafting scions of this plant to O. debilis plants that lacked the yellow vein foliage, grafted plants developed yellow vein suggesting that an infectious agent was the cause of the yellow vein. DNA extracts from O. debilis plants showing yellow vein were used in rolling circle amplification and PCR experiments. Sequence analyses of amplified DNA products suggested that a begomovirus was the cause of the yellow vein symptoms. The same begomovirus was found in the original sample and in graft inoculated plants that developed the yellow vein symptoms. The DNA A of the putative begomovirus, designated Oxalis yellow vein virus (OxYVV), shared 87 % overall nucleotide identities with the corresponding genome segments of Sida mottle virus, 85 % with Okra mottle virus, and 83 % with Tomato yellow spot virus. OxYVV virus was transmitted by the whitefly Bemisia tabaci Middle East-Asia Minor 1. This is another example of a virus that enhances the aesthetics of an ornamental plant.

Publication Source (Journal or Book title)

European Journal of Plant Pathology

First Page

203

Last Page

208

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