Prevalence and Characterization of Murine Leukemia Virus Contamination in Human Cell Lines
The chart demonstrates the relationship of the complete MLV genomes. The alignment and the tree construction were performed with the MEGA6 software. The investigated sequences produce the same major groups of MLV subtypes as found for the partial sequences. The scale bar represents the number of nucleotide substitutions per site. * Sequences obtained from the NCBI sequence database.