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. 1982 Aug;43(2):511–518. doi: 10.1128/jvi.43.2.511-518.1982

Evidence for an early evolutionary origin and locus polymorphism of mouse VL30 DNA sequences.

M G Courtney, P K Elder, D L Steffen, M J Getz
PMCID: PMC256154  PMID: 7109032

Abstract

The VL30 sequences of mouse DNA are a family of sequences with retrovirus-like structure which code for a 30S RNA transcript that can be packaged into the virions of murine leukemia viruses and thereby transmitted from cell to cell. A Southern blot analysis of these sequences revealed that multiple copies are present in the DNA of all mice examined, regardless of species or geographic origin. Considerable locus polymorphism was also apparent, and at least one of these polymorphisms appeared to reflect the differing chromosomal location of a complete VL30 sequence. These data indicated that VL30 elements are not recent additions to the mouse genome and suggested that the evolution of the VL30 multigene family has been accompanied by duplication and dispersion of VL30 sequences to diverse genomic sites. In addition, we reexamined the issue of genetic relatedness between mouse VL30 sequences and a physically similar family of virus-like elements in the rat genome. We found that many, if not all, rat and mouse VL30 loci contain regions of sequence homology. These data suggested that rodent VL30 sequences have evolved from a common ancestral sequence.

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Selected References

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

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