Table 3.
Percent sequence identity in the S1 and ORF3 genes of PEDV strains identified in the present study
| PEDV strains compared (GenBank accession no.) | nt/aa level | ORF3 | S1 |
|---|---|---|---|
| 14 PEDV strains identified in current study | nt | 95.1-99.7% | 97.2-100.0% |
| aa | 96.4-99.6% | 95.8-100.0% | |
| Comparison with the PEDV CV777 strain (AF353511.1) | nt | 95.9-97.2% | 91.4-92.3% |
| aa | 93.8-96.4% | 89.1-90.0% | |
| Comparison with the PEDV CV777 attenuated strain (KT323979.1) | nt | 93.8-97.1% | 90.7-91.6% |
| aa | 85.9-89.1% | 88.5-89.1% | |
| Comparison with the variant PEDV strain AJ1102 from Hubei province, China, in 2011 (JX188454.1) | nt | 95.7-99.3% | 97.3-98.7% |
| aa | 95.6-99.1% | 97.2-98.2% | |
| Comparison with the natural recombinant PEDV strain from Henan province, China, in 2016 (KR095279.1) | nt | 94.0-97.8% | 94.8-96.3% |
| aa | 93.5-96.8% | 92.5-94.5% | |
| Comparison with the PEDV prototype strain USA/Colorado/2013 (highly pathogenic strain) from the USA in 2013 (KF272920) | nt | 95.3-99.4% | 97.9-99.5% |
| aa | 96.0-99.1% | 97.2-99.2% | |
| Comparison with the PEDV S-INDEL strain OH851 (low-pathogenic strain) from the USA in 2014 (KJ399978) | nt | 95.6-99.7% | 91.9-92.9% |
| aa | 96.4-99.1% | 90.7-92.5% |