Archives of Virology

, Volume 157, Issue 12, pp 2447–2452 | Cite as

Caladenia virus A, an unusual new member of the family Potyviridae from terrestrial orchids in Western Australia

  • Stephen J. Wylie
  • Aaron J. Y. Tan
  • Hua Li
  • Kingsley W. Dixon
  • Michael G. K. Jones
Brief Report

Abstract

An isolate of a new virus, Caladenia virus A (CalVA), was identified infecting Australian terrestrial orchids. The complete genome of 9,847 nucleotides encodes 11 gene products typical of most members of the family Potyviridae. Sequence comparisons of the polyprotein revealed that CalVA shared highest sequence identity (37.5-39.6 %) with members of the genus Poacevirus. Although a vector for CalVA was not identified, a mite transmission motif was present in the helper component protease, indicating that, like other poaceviruses, mites may transmit it. CalVA is the only proposed member of the genus Poacevirus not isolated from a poaceous host.

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Stephen J. Wylie
    • 1
  • Aaron J. Y. Tan
    • 1
  • Hua Li
    • 1
  • Kingsley W. Dixon
    • 2
  • Michael G. K. Jones
    • 1
  1. 1.Plant Virology, Western Australian State Agricultural Biotechnology Centre, School of Biological Sciences and BiotechnologyMurdoch UniversityPerthAustralia
  2. 2.Botanic Gardens and Parks AuthorityKings Park and Botanic GardenWest PerthAustralia

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