Diversity and evolution of potato mop-top virus

• Published in: Archives of virology 2015-05, Vol.160 (5), p.1345-1351
• Main Authors: Beuch, Ulrike, Berlin, Sofia, Åkerblom, Jonas, Nicolaisen, Mogens, Nielsen, Steen Lykke, Crosslin, James M., Hamm, Philip B., Santala, Johanna, Valkonen, Jari P. T., Kvarnheden, Anders
• Format: Article
• Language: English
• Subjects: Agricultural Science; Biomedical and Life Sciences; Biomedicine; Botanik; Botany; Brief Report; Cluster Analysis; Denmark; Evolution, Molecular; Gene Order; Genetic diversity; Genetics; Genetik; Infectious Diseases; Jordbruksvetenskap; Medical Microbiology; Microbiology; Mikrobiologi; Molecular Sequence Data; Phylogeography; Plant biology; Plant Biotechnology; Plant diseases; Plant Diseases - virology; Plant Viruses - classification; Plant Viruses - genetics; Plant Viruses - isolation & purification; Potato mop-top virus; Potatoes; Proteins; RNA polymerase; RNA Viruses - classification; RNA Viruses - genetics; RNA Viruses - isolation & purification; RNA, Viral - genetics; Selection, Genetic; Sequence Analysis, DNA; Soil Microbiology; Solanum tuberosum; Solanum tuberosum - virology; Sweden; United States; Virology; Viruses; Växtbioteknologi
• ISSN: 0304-8608; 1432-8798; 1432-8798
• DOI: 10.1007/s00705-015-2381-7

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.