TABLE 3.

Number of nucleotide differences in each gene

Gene	Sequence length, in bp (n)	Total no. of nucleotide differencesa (d)	d/n (×100)	No. of nucleotide differences defining clustersb (c)	c/dc (×100)
Agno	201	9	4.48	3	33.33
VP2	1,056	90	8.52	30	33.33
VP3	699	72	10.30	26	36.11
VP1	1,089	151	13.86	52	34.44
Large T	2,089	238	11.39	110	46.22
Small t	518	40	7.72	20	50
Total		600		241

^aTotal number of nucleotide differences in respective genes.

^bNumber of nucleotide differences that distinguished the six clusters in the phylogenetic analysis of whole genomes.

^cPercentage of number of variable sites contributing to the six clusters in the respective genes.