Lack of sequence homology between the nucleic acids of Rauscher leukaemia virus and polyoma virus Y8e produced simultaneously in a continuous mouse cell line.

In a continuous cell line (Y8e) from spleen and thymus cells of mice, infected with RLV, the presence of both RLV and polyoma virus Y8e in a single cell could be demonstrated by electron microscopy. A comparison of the nucleic acids of RLV and polyoma virus from Y8e cells by two molecular hybridization methods showed lack of sequence homology between the viral nucleic acids.