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  • Title: Rapid induction of osteopetrosis by subgroup E recombinant viruses.
    Author: Morgan JH, Smith RE.
    Journal: Virology; 1983 Sep; 129(2):493-500. PubMed ID: 6312686.
    Abstract:
    Avian osteopetrosis is a proliferative bone disorder initiated at high frequency by MAV-2(O), a subgroup B avian myeloblastosis-associated virus. To examine the role of the MAV-2(O) genome in osteopetrosis induction, a series of recombinant viruses between MAV-2(O) and RAV-O was constructed. Recombinant viruses were selected for rapid growth and subgroup E envelopes. The T1 oligonucleotide fingerprint patterns of viruses selected in this manner demonstrated that they were recombinants and were clonally pure because they had oligonucleotides from each parent, and each oligonucleotide was present in single molar yield. When injected into 10-day-old chicken embryos, approximately 50% of the recombinant viruses induced osteopetrosis within 3 weeks after hatch. Therefore, subgroup E envelope did not inhibit osteopetrosis induction. The osteopetrosis that was induced varied from slight to severe, but none of the recombinant viruses induced osteopetrosis as severe as the MAV-2(O) parent.
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