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United States Department of Agriculture

Agricultural Research Service

Research Project: BIOLOGY, EPIDEMIOLOGY, PATHOGENESIS, AND VECTOR SPECIFICITY OF SUGARBEET AND VEGETABLE VIRUSES

Location: Crop Improvement and Protection Research

Title: Molecular characterization of an endornavirus from Cucumis spp

Authors
item Sabanadzovic, Sead -
item Valverde, Rodrigo -
item Wintermantel, William

Submitted to: American Phytopathological Society Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: May 1, 2011
Publication Date: June 1, 2011
Citation: Sabanadzovic, S., Valverde, R.A., Wintermantel, W.M. 2011. Molecular characterization of an endornavirus from Cucumis spp. American Phytopathological Society Annual Meeting. Online.

Technical Abstract: Endornaviruses infect hosts in the kingdoms Plantae, Fungi and Chromista. They are efficiently transmitted vertically and generally do not induce visible symptoms. In this investigation high molecular weight dsRNA, representing the genome of an endornavirus, was isolated from an unknown melon (Cucumis melo) cultivar and used as a template for molecular characterization. The complete genome of the virus, provisionally named Cucumis endornavirus 1 (CucEV-1) consisted of ca 15 kbp, terminating with a stretch of cytidine residues and encoding a large precursor polyprotein containing domains characteristic of a RNA-dependent RNA polymerase and glycosyltransferase. CucEV-1 is phylogenetically closely related to endornaviruses reported from cultivated and wild Oryza spp. Preliminary studies indicate the presence of variants of this virus, or related endornavirus species in several other wild and cultivated cucurbit species.

Last Modified: 9/10/2014
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