Table 4.

VP2 gene homology analysis for the six isolates and 10 reference strains.

Accession Number	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
1		99.2	99.0	99.4	98.7	99.3	98.5	99.0	99.6	99.0	99.0	98.8	99.0	99.0	98.8	98.9
2	0.8		99.0	99.2	99.1	99.0	99.0	99.6	99.6	99.5	99.3	99.4	99.5	99.5	99.4	99.5
3	1.0	1.0		99.5	99.4	98.9	98.3	98.9	99.4	98.8	98.8	98.6	98.9	98.8	98.6	98.7
4	0.6	0.8	0.5		99.0	99.1	98.5	99.0	99.5	99.0	99.0	98.8	99.0	99.0	98.8	98.9
5	1.3	0.9	0.6	1.0		98.9	98.3	99.0	99.0	98.9	98.7	98.7	98.8	98.9	98.7	98.8
6	0.7	1.0	1.1	0.9	1.1		98.3	99.0	99.1	98.8	98.7	98.6	98.9	98.8	98.6	98.7
7	1.6	1.0	1.7	1.6	1.7	1.7		99.3	98.9	99.3	99.1	99.1	99.1	99.3	99.1	99.2
8	1.0	0.4	1.1	1.0	1.0	1.0	0.7		99.4	99.7	99.6	99.5	99.5	99.7	99.5	99.7
9	0.4	0.4	0.6	0.5	1.0	0.9	1.1	0.6		99.4	99.4	99.2	99.4	99.4	99.2	99.3
10	1.0	0.5	1.2	1.0	1.1	1.2	0.7	0.3	0.6		99.5	99.6	99.6	99.8	99.6	99.7
11	1.0	0.7	1.2	1.0	1.3	1.3	0.9	0.4	0.6	0.5		99.5	99.5	99.7	99.5	99.6
12	1.2	0.6	1.4	1.2	1.3	1.4	0.9	0.5	0.8	0.4	0.5		99.5	99.7	99.5	99.7
13	1.0	0.5	1.1	1.0	1.2	1.1	0.9	0.5	0.6	0.4	0.5	0.5		99.7	99.5	99.7
14	1.0	0.5	1.2	1.0	1.1	1.2	0.7	0.3	0.6	0.2	0.3	0.3	0.3		99.8	99.9
15	1.2	0.6	1.4	1.2	1.3	1.4	0.9	0.5	0.8	0.4	0.5	0.5	0.5	0.2		99.9
16	1.1	0.5	1.3	1.1	1.2	1.3	0.8	0.3	0.7	0.3	0.4	0.3	0.3	0.1	0.1

The upper right values are the percentage identities of the VP2 gene among viruses and the lower left values are the divergences; 1–6: CPV isolates from the Tibetan mastiff (CPV-CD-ZA1, CPV-LS-ZA1, CPV-YA-ZA1, CPV-YA-ZA2, CPV-YA-ZA4, CPV-YA-ZA5, respectively); 7–16: CPV isolates from China and other countries with GenBank accession numbers: GU569943, GU569947, HQ883267, FJ005259, GU569944, FJ222823, AY742951, FJ222821, FJ005214, GQ865519, respectively.