Figure 1: Phylogenetic analysis of the Fuzhou WU polyomavirus strains FZ18 and FZTF, based on nucleotide sequences of the VP2 gene. Multiple nucleotide sequence alignments were performed by using the ClustalX program and a phylogenetic tree was constructed with the PHYLIP software version 3.65 using the neighbor-joining algorithm with Kimura-2 parameters. The analysis included WU strains previously identified from Australian, American, South Korea and China i.e., B0, B3, B7, B9, B12, S1~S4, KRM- 2338, KR-M-3293, KR-M-3302, BCH-004A, BCH-123A, BCH-312A, BCH- 313A, LZ41 and CLFF (GenBank accession nos.: EF444549, EF444558, EF444580, EF444592, EF444557, EF444550, EF444551, EF444552, EF444553, EF655820, EU041606, EU041608, EU597008, EU754876, EU754881, EU754882, EU304322, and EU277015 respectively).