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. 1986 Sep;59(3):669–675. doi: 10.1128/jvi.59.3.669-675.1986

Molecular cloning and characterization of gag-, pol-, and env-related gene sequences in the ev- chicken.

C T Dunwiddie, R Resnick, M Boyce-Jacino, J N Alegre, A J Faras
PMCID: PMC253233  PMID: 3016330

Abstract

Using less stringent hybridization conditions and cloned viral DNA probes representing the avian sarcoma virus gag, pol, env, and long terminal repeat (LTR) gene sequences, we detected related sequences in two avian species purportedly lacking all endogenous avian leukosis viruses, the ev- chicken and the Japanese quail. The blot hybridization patterns obtained with the various probes suggest the presence of between 40 and 100 copies of retrovirus-related sequences in the genomes of these two species. An ev- chicken genomic DNA library was prepared and screened with gag-specific and pol-specific DNA probes. Several different clones were obtained from this library and characterized. Analysis of these clones revealed that the retrovirus-related gene sequences are linked in the order LTR-gag-pol-env-LTR, a structure indicative of a complete provirus. These data indicate the presence of previously unidentified endogenous retrovirus species in avian cells, suggesting that under the appropriate conditions of hybridization additional, more distantly evolved families of endogenous retrovirus genes may be identified in vertebrate species.

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These references are in PubMed. This may not be the complete list of references from this article.

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