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Arch Virol. 2015 May;160(5):1345-51. doi: 10.1007/s00705-015-2381-7. Epub 2015 Mar 10.

Diversity and evolution of potato mop-top virus.

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Department of Plant Biology, Uppsala BioCenter, Linnean Center of Plant Biology in Uppsala, Swedish University of Agricultural Sciences, Box 7080, 750 07, Uppsala, Sweden.


Nearly complete sequences of RNA-CP and 3'-proximal RNA-TGB were determined for 43 samples of potato mop-top virus (PMTV) originating from potato tubers and field soil from Sweden, Denmark and the USA. The results showed limited diversity and no strict geographical grouping, suggesting only a few original introductions of PMTV from the Andes. Two distinguishable types of RNA-CP and RNA-TGB were found in the samples, but no specific combination of them correlated with spraing symptoms in tubers. Lack of positive selection in the coding sequences indicates that there is no specific molecular adaptation of PMTV to new vectors or hosts.

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