Archives of Virology

, Volume 155, Issue 6, pp 935–940

Characterization of siRNAs derived from rice stripe virus in infected rice plants by deep sequencing

  • Fei Yan
  • Hengmu Zhang
  • Michael J. Adams
  • Jian Yang
  • Jiejun Peng
  • John F. Antoniw
  • Yijun Zhou
  • Jianping Chen
Original Article

DOI: 10.1007/s00705-010-0670-8

Cite this article as:
Yan, F., Zhang, H., Adams, M.J. et al. Arch Virol (2010) 155: 935. doi:10.1007/s00705-010-0670-8

Abstract

RNA interference is a natural defense against viruses in plants. To date, the only viral siRNAs characterized have been those for positive-sense RNA viruses with one or two genome components. Here, we characterized siRNAs derived from rice stripe virus (RSV), a member of the genus Tenuivirus with four genomic RNAs and an ambisense coding strategy. Deep sequencing of small RNAs from infected rice leaves showed that siRNAs were derived almost equally from virion and complementary RNA strands and were mostly 20–22 nucleotides long. Most viral siRNAs were produced within the coding sequences and 5′ termini of the RSV genome. RSV siRNAs had a higher G and lower C content than the viral genome but a strong A/U bias at the first nucleotide and a U bias at the final one, suggesting preferential targeting of such sequences by rice Dicer-like proteins.

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Fei Yan
    • 1
  • Hengmu Zhang
    • 1
  • Michael J. Adams
    • 2
  • Jian Yang
    • 1
  • Jiejun Peng
    • 1
  • John F. Antoniw
    • 2
  • Yijun Zhou
    • 3
  • Jianping Chen
    • 1
  1. 1.Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhouPeople’s Republic of China
  2. 2.Department of Plant Pathology and MicrobiologyRothamsted ResearchHertsUK
  3. 3.Institution of Plant ProtectionJiangsu Academy of Agricultural SciencesNanjingPeople’s Republic of China