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. 2009 Jun 24;47(8):2475–2482. doi: 10.1128/JCM.00115-09

FIG. 2.

FIG. 2.

Phylogenetic trees for HRSV-A (a) and HRSV-B (b) nucleotide sequences based on the second variable region of the G protein (270 or 330 bp) using the neighbor-joining method with MEGA, version 4. Genotypes were assigned by Peret et al. (genotypes GA1 to GA7 and GB1 to GB4) (27) and Venter et al. (genotypes SAA1 and SAB1 to SAB3) (37). The new type, named BA virus, comprises strains with a 60-nucleotide insertion. Reference GenBank sequences of strains from throughout the world were compared with strains from Niigata (NG); the comparison strains were from Rochester, NY (CH) (27); Winnipeg, Manitoba, Canada (CN) (26); Houston, TX (TX) (26); Rochester, NY (NY) (26); St. Louis, MO (MO) (26); Soweto, South Africa (SA) (37); Birmingham, AL (AL) (26); West Virginia (WV) (32); Sapporo, Japan (SAP) (22); and Buenos Aires, Argentina (BA) (35). The scale bars show the proportions of nucleotide substitutions, and the numbers at the branches are bootstrap values determined for 1,000 iterations. Only bootstrap values of greater than 70% significance are shown.