The Structure of Marek's Disease Virus DNA

J-STAGE
  • HAYASHI Masanobu
    Department of Laboratory Animal Science, Faculty of Veterinary Medicine, Hokkaido University
  • JESSIP John
    Department of Virology, Showa University Research Institute for Biomedicine in Florida
  • FUKUCHI Kunihiko
    Department of Virology, Showa University Research Institute for Biomedicine in Florida
  • SMITH Mary
    Department of Virology, Showa University Research Institute for Biomedicine in Florida
  • TANAKA Akiko
    Department of Virology, Showa University Research Institute for Biomedicine in Florida
  • NONOYAMA Meihan
    Department of Virology, Showa University Research Institute for Biomedicine in Florida

抄録

The structure of Marek's disease virus (MDV) DNA was investigated by using Southern blot hybridization analysis. A heterogeneous region was observed in the inverted repeats region, IRS and TRS, as well as in the TRL and IRL. The results of DNA sequencing of the heterogeneous region showed that the heterogeneity of IRS and TRS was due to amplification of a 178-bp repeat sequence. Amplification of IRS and TRS was found in viral DNA from both pathogenic and nonpathogenic strains. The structure of DNA from the latent MDV genome present in established lymphoblastic cells was also determined. Amplification of the 132-bp repeat sequence in IRL and TRL was not found in latent MDV DNA of established lymphoblastic cells, whereas amplification of the 178-bp repeat sequence in IRS and TRS was found in the same DNA.

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