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Insertional polymorphisms of endogenous feline leukemia viruses

  1. Author:
    Roca, A. L.
    Nash, W. G.
    Menninger, J. C.
    Murphy, W. J.
    O'Brien, S. J.

  2. Author Address

    Roca, AL, NCI, Lab Genet Divers, Bldg 560, Frederick, MD 21702 USA NCI, Lab Genet Divers, Frederick, MD 21702 USA. SAIC, Lab Genom Divers, Basic Res Program, Frederick, MD USA. H&W Cytogenet Serv, Lovettsville, VA USA. Texas A&M Univ, Dept Vet Integrat Biosci, College Stn, TX USA.
    1. Year: 2005
  2. Journal: Journal of Virology
    1. 79
    2. 7
    3. Pages: 3979-3986
  4. Type of Article: Article
  1. Abstract:

    The number, chromosomal distribution, and insertional polymorphisms of endogenous feline leukemia viruses (enFeLVs) were determined in four domestic cats (Burmese, Egyptian Mau, Persian, and nonbreed) using fluorescent in situ hybridization and radiation hybrid mapping. Twenty-nine distinct enFeLV loci were detected across 12 of the 18 autosomes. Each cat carried enFeLV at only 9 to 16 of the loci, and many loci were heterozygous for presence of the provirus. Thus, an average of 19 autosomal copies of enFeLV were present per cat diploid genome. Only five of the autosomal enFeLV sites were present in all four cats, and at only one autosomal locus, B4q15, was enFeLV present in both homologues of all four cats. A single enFeLV occurred in the X chromosome of the Burmese cat, while three to five enFeLV proviruses occurred in each Y chromosome. The X chromosome and nine autosomal enFeLV loci were telomeric, suggesting that ectopic recombination between nonhomologous subtelomeres may contribute to enFeLV distribution. Since endogenous FeLVs may affect the infectiousness or pathogenicity of exogenous FeLVs, genomic variation in enFeLVs represents a candidate for genetic influences on FeLV leukemogenesis in cats

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  1. View record in Web of Science®
  2. WOS: 000227743700009

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