Figure 2.

Phylogenetic trees of recently isolated bunyaviruses based on amino acid sequences of the polymerase protein (A) encoded by the large segment, the membrane glycoprotein polyprotein (B) encoded by the medium segment, and the nucleocapsid protein (C) and the nonstructural protein (D) encoded by the small segment of selected bunyaviruses. Maximum-likelihood trees were constructed by using MEGA5 (http://www.megasoftware.net/) with bootstrapping at 1,000 replicates. GenBank accession numbers are within parentheses next to the virus names. Scale bars indicate nucleotide substitutions per site.