Table 3.
Comparison of the nucleotide and deduced amino acid sequences of the membrane protein genes of Chinese PEDV isolates and PEDV reference strains
| Strains | Br1/87 | Chinju99 | CV777 | JMe2 | JS-2004-2 | KPEDV-9 | KPEDV-9F | LJB/03 | LZC | QH | CH/HLJH/06 | CH/HNCH/06 | CH/IMB/06 | CH/IMT/06 | CH/JSX/06 | CH/SHH/06 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Br1/87 | – | 98.7 | 99.9 | 99.1 | 98.4 | 98.7 | 98.2 | 97.8 | 98.8 | 98.4 | 98.8 | 98.7 | 98.7 | 99.0 | 99.3 | 98.7 | 
| Chinju99 | 97.3 | – | 98.8 | 99.3 | 97.9 | 98.8 | 98.4 | 97.4 | 97.8 | 97.9 | 98.4 | 98.2 | 98.2 | 98.2 | 98.5 | 98.2 | 
| CV777 | 99.6 | 97.8 | – | 99.3 | 98.5 | 98.8 | 98.4 | 97.9 | 99.0 | 98.5 | 99.0 | 98.8 | 98.8 | 99.1 | 99.4 | 98.8 | 
| JMe2 | 98.7 | 98.7 | 99.1 | – | 98.4 | 99.3 | 98.8 | 97.8 | 98.2 | 98.4 | 98.8 | 98.7 | 98.7 | 98.7 | 99.0 | 98.7 | 
| JS-2004-2 | 98.7 | 97.8 | 99.1 | 99.1 | – | 97.9 | 97.5 | 97.7 | 97.5 | 98.2 | 99.0 | 98.5 | 98.5 | 98.5 | 98.8 | 98.5 | 
| KPEDV-9 | 97.3 | 97.3 | 97.8 | 98.7 | 97.8 | – | 99.0 | 97.4 | 97.8 | 97.9 | 98.4 | 98.2 | 98.2 | 98.2 | 98.5 | 98.2 | 
| KPEDV-9F | 97.8 | 97.8 | 98.2 | 99.1 | 98.2 | 98.7 | – | 96.9 | 97.4 | 97.5 | 97.9 | 97.8 | 97.8 | 97.8 | 98.1 | 97.8 | 
| LJB/03 | 97.3 | 96.5 | 97.8 | 97.8 | 96.9 | 96.5 | 96.9 | – | 96.9 | 98.5 | 97.2 | 97.7 | 97.7 | 97.4 | 97.7 | 97.7 | 
| LZC | 97.8 | 96.0 | 98.2 | 97.3 | 97.3 | 96.0 | 96.5 | 96.0 | – | 97.5 | 97.9 | 97.8 | 97.8 | 98.1 | 98.4 | 97.8 | 
| QH | 98.7 | 97.8 | 99.1 | 99.1 | 98.2 | 97.8 | 98.2 | 97.8 | 97.3 | – | 97.8 | 98.2 | 98.2 | 97.9 | 98.2 | 98.2 | 
| CH/HLJH/06 | 98.7 | 97.8 | 99.1 | 99.1 | 100.0 | 97.8 | 98.2 | 96.9 | 97.3 | 98.2 | – | 99.0 | 99.0 | 99.0 | 99.6 | 99.0 | 
| CH/HNCH/06 | 99.1 | 98.2 | 99.6 | 99.6 | 98.7 | 98.2 | 98.7 | 98.2 | 97.8 | 99.6 | 98.7 | – | 100.0 | 98.8 | 99.4 | 100.0 | 
| CH/IMB/06 | 99.1 | 98.2 | 99.6 | 99.6 | 98.7 | 98.2 | 98.7 | 98.2 | 97.8 | 99.6 | 98.7 | 100.0 | – | 98.8 | 99.4 | 100.0 | 
| CH/IMT/06 | 98.7 | 96.9 | 99.1 | 98.2 | 98.2 | 96.9 | 97.3 | 96.9 | 97.3 | 98.2 | 98.2 | 98.7 | 98.7 | – | 99.4 | 98.8 | 
| CH/JSX/06 | 99.6 | 97.8 | 100.0 | 99.1 | 99.1 | 97.8 | 98.2 | 97.8 | 98.2 | 99.1 | 99.1 | 99.6 | 99.6 | 99.1 | – | 99.4 | 
| CH/SHH/06 | 99.1 | 98.2 | 99.6 | 99.6 | 98.7 | 98.2 | 98.7 | 98.2 | 97.8 | 99.6 | 98.7 | 100 | 100.0 | 98.7 | 99.6 | – | 
Nucleotide identity (%) in upper triangle; Deduced amino acid identity (%) in lower triangle