Abstract
Domestic pigs (Sus scrofa) and other members of the family Suidae have multiple copies of type C viral gene sequences in the cellular DNA of all their tissues. Partially homologous viral gene sequences are also found in cellular DNA of rodents, particularly Muridae. The results lead to the conclusion that type C viral genes were introduced into the Suidae lineage as a result of trans-species infection by an ancestral xenotropic murine virus. The rate of evolution of the virogene sequences in the pig appears to be much slower than that of genes that have remained in the rodent lineage; this may be a consequence of transfer from a shorter-lived animal (the rodent) to a longer-lived one (the pig). We estimate the time of gene transmission as 5-10 million years ago and conclude that the present-day porcine type C virogenes most closely approximate the viral genes as they were several million years ago in the rodent lineage.
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- Benveniste R. E., Heinemann R., Wilson G. L., Callahan R., Todaro G. J. Detection of baboon type C viral sequences in various primate tissues by molecular hybridization. J Virol. 1974 Jul;14(1):56–67. doi: 10.1128/jvi.14.1.56-67.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Benveniste R. E., Lieber M. M., Livingston D. M., Sherr C. J., Todaro G. J., Kalter S. S. Infectious C-type virus isolated from a baboon placenta. Nature. 1974 Mar 1;248(5443):17–20. doi: 10.1038/248017a0. [DOI] [PubMed] [Google Scholar]
- Benveniste R. E., Scolnick E. M. RNA in mammalian sarcoma virus transformed nonproducer cells homologous to murine leukemia virus RNA. Virology. 1973 Feb;51(2):370–382. doi: 10.1016/0042-6822(73)90436-4. [DOI] [PubMed] [Google Scholar]
- Benveniste R. E., Todaro G. J. Evolution of C-type viral genes: inheritance of exogenously acquired viral genes. Nature. 1974 Dec 6;252(5483):456–459. doi: 10.1038/252456a0. [DOI] [PubMed] [Google Scholar]
- Benveniste R. E., Todaro G. J. Evolution of type C viral genes: I. Nucleic acid from baboon type C virus as a measure of divergence among primate species. Proc Natl Acad Sci U S A. 1974 Nov;71(11):4513–4518. doi: 10.1073/pnas.71.11.4513. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Benveniste R. E., Todaro G. J. Multiple divergent copies of endogenous C-type virogenes in mammalian cells. Nature. 1974 Nov 8;252(5479):170–173. doi: 10.1038/252170a0. [DOI] [PubMed] [Google Scholar]
- Breese S. S., Jr Virus-like particles occurring in cultures of stable pig kidney cell lines. Brief report. Arch Gesamte Virusforsch. 1970;30(4):401–404. doi: 10.1007/BF01258369. [DOI] [PubMed] [Google Scholar]
- Britten R. J., Kohne D. E. Repeated sequences in DNA. Hundreds of thousands of copies of DNA sequences have been incorporated into the genomes of higher organisms. Science. 1968 Aug 9;161(3841):529–540. doi: 10.1126/science.161.3841.529. [DOI] [PubMed] [Google Scholar]
- Kohne D. E. Evolution of higher-organism DNA. Q Rev Biophys. 1970 Aug;3(3):327–375. doi: 10.1017/s0033583500004765. [DOI] [PubMed] [Google Scholar]
- Lieber M. M., Sherr C. J., Benveniste R. E., Todaro G. J. Biologic and immunologic properties of porcine type C viruses. Virology. 1975 Aug;66(2):616–619. doi: 10.1016/0042-6822(75)90234-2. [DOI] [PubMed] [Google Scholar]
- Lieber M. M., Sherr C. J., Todaro G. J., Benveniste R. E., Callahan R., Coon H. G. Isolation from the asian mouse Mus caroli of an endogenous type C virus related to infectious primate type C viruses. Proc Natl Acad Sci U S A. 1975 Jun;72(6):2315–2319. doi: 10.1073/pnas.72.6.2315. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Okabe H., Gilden R. V., Hatanaka M. Specificity of the DNA product of RNA-dependent DNA polymerase in type C viruses: 3. Analysis of viruses derived from Syrian hamsters. Proc Natl Acad Sci U S A. 1974 Aug;71(8):3278–3282. doi: 10.1073/pnas.71.8.3278. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Oroszlan S., Summers M., Gilden R. V. Amino-terminal sequence of baboon type C virus p30. Virology. 1975 Apr;64(2):581–583. doi: 10.1016/0042-6822(75)90138-5. [DOI] [PubMed] [Google Scholar]
- Sherr C. J., Fedele L. A., Benveniste R. E., Todaro G. J. Interspecies antigenic determinants of the reverse transcriptases and p30 proteins of mammalian type C viruses. J Virol. 1975 Jun;15(6):1440–1448. doi: 10.1128/jvi.15.6.1440-1448.1975. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sherr C. J., Todaro G. J. Radioimmunoassay of the major group specific protein of endogenous baboon type C viruses: relation to the RD-114-CCC group and detection of antigen in normal baboon tissues. Virology. 1974 Sep;61(1):168–181. doi: 10.1016/0042-6822(74)90252-9. [DOI] [PubMed] [Google Scholar]
- Teitz Y., Lennette E. H., Oshiro L. S., Cremer N. E. Release of C-type particles from normal rat thymus cultures and those infected with Moloney leukemia virus. J Natl Cancer Inst. 1971 Jan;46(1):11–23. [PubMed] [Google Scholar]
- Todaro G. J., Benveniste R. E., Lieber M. M., Sherr C. J. Characterization of a type C virus released from the porcine cell line PK(15). Virology. 1974 Mar;58(1):65–74. doi: 10.1016/0042-6822(74)90141-x. [DOI] [PubMed] [Google Scholar]
- Todaro G. J., Huebner R. J. N.A.S. symposium: new evidence as the basis for increased efforts in cancer research. Proc Natl Acad Sci U S A. 1972 Apr;69(4):1009–1015. doi: 10.1073/pnas.69.4.1009. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Todaro G. J., Sherr C. J., Benveniste R. E., Lieber M. M., Melnick J. L. Type C viruses of baboons: isolation from normal cell cultures. Cell. 1974 May;2(1):55–61. doi: 10.1016/0092-8674(74)90008-7. [DOI] [PubMed] [Google Scholar]
- Todaro G. J. Spontaneous release of type C viruses from clonal lines of spontaneously transformed Blab-3T3 cells. Nat New Biol. 1972 Nov 29;240(100):157–160. doi: 10.1038/newbio240157a0. [DOI] [PubMed] [Google Scholar]