Novel sugarcane streak and sugarcane streak Reunion mastreviruses from southern Africa and La Réunion.
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2008
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Archives of Virology
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Springer Verlag
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University of Cape Town
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Abstract
The sugarcane infecting streak viruses (SISVs) are mastreviruses (Family Geminiviridae) belonging to a group of ‘‘African streak viruses’’ (AfSVs) that includes the economically devastating Maize streak virus (MSV). Although there are three currently described SISV species (Sugarcane streak virus [SSV], Sugarcane streak Egypt virus [SSEV] and Sugarcane streak Re´union virus [SSRV]), only one strain variant has been fully sequenced for each of these species and as a result very little is known about the diversity and evolutionary origins of the SCISVs. Here we present annotated full genome sequences of four new SISV isolates, including a new strain of both SSRV and SSV, and one potentially new SISV species, sampled from wild grasses in La Re´union and Zimbabwe. For the first time, we report the finding of SSRV isolates in Zimbabwe and SSV isolates on the island of La Re´union. Phylogenetic and recombination analyses indicate continent-wide SSRV strain diversity and that our isolate potentially representing a new SISV species is a recombinant.
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Shepherd, D. N., Varsani, A., Windram, O. P., Lefeuvre, P., Monjane, A. L., Owor, B. E., & Martin, D. P. (2008). Novel sugarcane streak and sugarcane streak Reunion mastreviruses from southern Africa and La Reunion. Archives of virology, 153(3), 605-609.