Fig 3. Maximum-likelihood phylogeny of 64 partial Marburg virus polymerase gene (L gene) fragments with a total length of 1262 bp.

Tree was constructed using the best-fit nucleotide substitution model (T93+G). Sequences in brown were obtained from ERB, and sequences in black come from human and nonhuman primate samples. The sequence from R. aegyptiacus ID ERB-452 generated in this study is indicated with an asterisk and bold text. Scale bar indicates the mean number of nucleotide substitutions per site. The filled circles on branches indicate bootstrap values greater than 0.9.