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Diversity and evolution of potato mop-top virus

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Abstract

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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Acknowledgments

The authors thank Dr. Paula Persson, Ms. Rue Snell, Dr. Willie Kirk and Dr. Jonathan Whitworth for providing samples. Financial support from the Nordic Joint Committee for Agricultural Research (grant no. NKJ-122), Swedish Farmers’ Foundation for Agricultural Research, Kungliga Fysiografiska Sällskapet i Lund and The Viikki Doctoral Programme of Molecular Sciences is gratefully acknowledged.

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Author notes

  1. Jonas Åkerblom

    Present address: Leica Microsystems AB, P.O. Box 1179, 164 26, Kista, Sweden

Authors and Affiliations

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

    Ulrike Beuch, Sofia Berlin, Jonas Åkerblom & Anders Kvarnheden

  2. Department of Agroecology, AU-Flakkebjerg, Aarhus University, 4200, Slagelse, Denmark

    Mogens Nicolaisen & Steen Lykke Nielsen

  3. United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Prosser, WA, 99350, USA

    James M. Crosslin

  4. Agricultural Research and Extension Center, Oregon State University, Hermiston, OR, USA

    Philip B. Hamm

  5. Department of Agricultural Sciences, University of Helsinki, Helsinki, Finland

    Johanna Santala & Jari P. T. Valkonen

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  1. Ulrike Beuch
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  2. Sofia Berlin
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Correspondence to Anders Kvarnheden.

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Beuch, U., Berlin, S., Åkerblom, J. et al. Diversity and evolution of potato mop-top virus. Arch Virol 160, 1345–1351 (2015). https://doi.org/10.1007/s00705-015-2381-7

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