Table 2.
Comparison of the nucleotide and deduced amino acid sequences of ORF3 genes of Chinese PEDV strains and PEDV reference strains
| Strain/isolate | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 Br1/87 | *** | 95.8 | 96.4 | 96.1 | 96.1 | 95.8 | 95.8 | 96.3 | 95.7 | 96.3 | 95.4 | 96.0 | 96.3 | 96.1 | 99.0 | 95.2 | 96.1 | 95.7 | 97.6 |
| 2 CH/GSJI/07 | 94.2 | *** | 98.4 | 96.3 | 99.7 | 99.3 | 99.0 | 99.1 | 99.1 | 99.1 | 98.8 | 98.4 | 99.1 | 98.2 | 96.9 | 97.3 | 98.7 | 97.4 | 95.6 |
| 3 CH/GSJII/07 | 94.6 | 98.2 | *** | 98.1 | 98.7 | 98.1 | 97.8 | 97.9 | 97.9 | 97.9 | 97.6 | 97.2 | 97.9 | 97.2 | 96.1 | 96.6 | 97.6 | 96.8 | 94.8 |
| 4 CH/GSJIII/07 | 86.8 | 87.9 | 87.9 | *** | 96.6 | 96.3 | 96.3 | 96.5 | 96.1 | 96.5 | 95.8 | 96.0 | 96.5 | 96.0 | 95.8 | 99.0 | 96.1 | 97.9 | 94.4 |
| 5 CH/HLJH/06 | 94.2 | 100.0 | 98.2 | 87.9 | *** | 99.4 | 99.1 | 99.3 | 99.3 | 99.3 | 99.0 | 98.5 | 99.3 | 98.5 | 97.2 | 97.6 | 99.0 | 97.8 | 95.9 |
| 6 CH/HLJM/07 | 93.7 | 98.7 | 96.9 | 89.0 | 98.7 | *** | 99.4 | 99.6 | 99.9 | 99.6 | 99.6 | 98.8 | 99.6 | 98.5 | 96.9 | 97.3 | 98.7 | 97.4 | 95.6 |
| 7 CH/HNCH/06 | 94.2 | 99.1 | 97.3 | 89.0 | 99.1 | 99.6 | *** | 99.3 | 99.3 | 99.3 | 99.0 | 98.8 | 99.3 | 98.5 | 96.9 | 97.3 | 98.4 | 97.4 | 95.6 |
| 8 CH/HNHJ/08 | 94.2 | 99.1 | 97.3 | 89.0 | 99.1 | 99.6 | 100.0 | *** | 99.4 | 100.0 | 99.1 | 98.7 | 100.0 | 98.7 | 97.2 | 97.4 | 98.5 | 97.6 | 95.9 |
| 9 CH/IMT/06 | 93.3 | 98.2 | 96.4 | 89.0 | 98.2 | 99.6 | 99.1 | 99.1 | *** | 99.4 | 99.4 | 98.7 | 99.4 | 98.4 | 96.7 | 97.1 | 98.5 | 97.3 | 95.4 |
| 10 CH/JL/08 | 94.2 | 99.1 | 97.3 | 89.0 | 99.1 | 99.6 | 100.0 | 100.0 | 99.1 | *** | 99.1 | 98.7 | 100.0 | 98.7 | 97.2 | 97.4 | 98.5 | 97.6 | 95.9 |
| 11 CH/JL/09 | 93.7 | 98.7 | 96.9 | 89.0 | 98.7 | 100.0 | 99.6 | 99.6 | 99.6 | 99.6 | *** | 98.4 | 99.1 | 98.1 | 96.4 | 96.8 | 98.2 | 97.0 | 95.1 |
| 12 CH/S | 94.2 | 99.1 | 97.3 | 89.0 | 99.1 | 99.6 | 100.0 | 100.0 | 99.1 | 100.0 | 99.6 | *** | 98.7 | 98.2 | 97.0 | 97.0 | 98.7 | 97.1 | 95.7 |
| 13 CH/SHH/06 | 94.2 | 99.1 | 97.3 | 89.0 | 99.1 | 99.6 | 100.0 | 100.0 | 99.1 | 100.0 | 99.6 | 100.0 | *** | 98.7 | 97.2 | 97.4 | 98.5 | 97.6 | 95.9 |
| 14 Chinju99 | 93.7 | 98.7 | 96.9 | 89.0 | 98.7 | 98.2 | 98.7 | 98.7 | 97.8 | 98.7 | 98.2 | 98.7 | 98.7 | *** | 97.2 | 97.0 | 98.1 | 97.1 | 95.9 |
| 15 CV777 vs | 86.8 | 87.9 | 87.9 | 100.0 | 87.9 | 89.0 | 89.0 | 89.0 | 89.0 | 89.0 | 89.0 | 89.0 | 89.0 | 89.0 | *** | 96.8 | 97.2 | 97.3 | 98.7 |
| 16 CV777 | 97.8 | 96.4 | 94.6 | 86.8 | 96.4 | 96.0 | 96.4 | 96.4 | 95.5 | 96.4 | 96.0 | 96.4 | 96.4 | 96.0 | 86.8 | *** | 97.1 | 99.2 | 95.4 |
| 17 DR13 | 94.6 | 99.6 | 97.8 | 89.0 | 99.6 | 99.1 | 99.6 | 99.6 | 98.7 | 99.6 | 99.1 | 99.6 | 99.6 | 99.1 | 89.0 | 96.9 | *** | 97.3 | 95.9 |
| 18 DR13 vs | 93.2 | 97.6 | 95.2 | 89.0 | 97.6 | 97.1 | 97.6 | 97.6 | 96.6 | 97.6 | 97.1 | 97.6 | 97.6 | 97.1 | 89.0 | 96.1 | 98.1 | *** | 95.8 |
| 19 LZC | 96.0 | 94.6 | 92.8 | 85.7 | 94.6 | 94.2 | 94.6 | 94.6 | 93.8 | 94.6 | 94.2 | 94.6 | 94.6 | 94.2 | 85.7 | 98.2 | 95.1 | 94.2 | *** |
Nucleotide identity (%) in upper triangle
Deduced amino acid identity (%) in lower triangle