Archives of Virology

, Volume 71, Issue 1, pp 43–55

The genome of orf virus: Restriction endonuclease analysis of viral DNA isolated from lesions of orf in sheep

  • A. J. Robinson
  • G. Ellis
  • T. Balassu
Original Papers

DOI: 10.1007/BF01315174

Cite this article as:
Robinson, A.J., Ellis, G. & Balassu, T. Archives of Virology (1982) 71: 43. doi:10.1007/BF01315174

Summary

The purification of orf virus directly from scab material from clinical cases of orf in sheep and restriction endonuclease analysis of the viral DNA is described. Between 7×109 and 1.6×1011 virus particles, and 0.7 to 22.8 µg of viral DNA could be recovered from lg of scab material. Considerable heterogeneity was observed between different field isolates when restriction endonuclease digests of orf DNA were compared by gel electrophoresis. It was also shown, for two isolates, that these fragment patterns did not change after plaque purification and passage in cell culture. it is suggested that restriction endonuclease analysis of viral DNA offers a convenient method of identification of isolates of orf virus. The molecular weight of orf DNA was determined and found to be 88.8×106.

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • A. J. Robinson
    • 1
  • G. Ellis
    • 1
  • T. Balassu
    • 1
  1. 1.Department of Veterinary Pathology and Public HealthMassey UniversityPalmerston NorthNew Zealand