Identification of a Nanovirus-Alphasatellite Complex in Sophora alopecuroides

Jahangir Heydarnejad, Mehdi Kamali, Hossain Massumi, Anders Kvarnheden, Maketalena F. Male, Simona Kraberger, Daisy Stainton, Darren P. Martin, Arvind Varsani

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


Viruses in the genus Nanovirus of the family Nanoviridae generally have eight individually encapsidated circular genome components and have been predominantly found infecting Fabaceae plants in Europe, Australia, Africa and Asia. For over a decade Sophora alopecuroides L. (Fabaceae) plants have been observed across Iran displaying dwarfing, yellowing, stunted leaves and yellow vein banding. Using a high-throughput sequencing approach, sequences were identified within one such plant that had similarities to nanovirus genome components. From this plant, the nanovirus-like molecules DNA-R (n = 4), DNA-C (n = 2), DNA-S (n = 1), DNA-M (n = 1), DNA-N (n = 1), DNA-U1 (n = 1), DNA-U2 (n = 1) and DNA-U4 (n = 1) were amplified, cloned and sequenced. Other than for the DNA-R, these components share less than 71% identity with those of other known nanoviruses. The four DNA-R molecules were highly diverse, sharing only 65–71% identity with each other and 64–86% identity with those of other nanoviruses. In the S. alopecuroides plant 14 molecules sharing 57.7–84.6% identity with previously determined sequences of nanovirus-associated alphasatellites were also identified. Given the research activity in the nanovirus field during the last five years coupled with high-throughput sequence technologies, many more diverse nanoviruses and nanovirus-associated satellites are likely to be identified.

Original languageEnglish (US)
Pages (from-to)24-32
Number of pages9
JournalVirus research
StatePublished - May 2 2017


  • Alphasatellite
  • High throughput sequencing
  • Iran
  • Nanovirus
  • Sophora alopecuroides

ASJC Scopus subject areas

  • Virology
  • Infectious Diseases
  • Cancer Research


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