FIG. 1.

Phylogeny of group C virus members based on their N ORF complete nucleotide sequences. Phylogenetic analyses were carried out using both NJ and MP methods, yielding identical topologies, and the NJ tree is presented. Group C virus members were distributed into tree major lineages called groups I, II, and III. Numbers adjacent to each branch represent the percentage bootstrap support calculated for 1,000 replicates. Values inside and outside parentheses indicate bootstrap values obtained by the MP and NJ methods, respectively. Members of the California, Bunyamwera, and Simbu serogroups were used as outgroups to root the tree. The scale bar represent 10% nucleotide sequence divergence.