Table 3. Positive and purifying selection in porcine IFNAs, IFNDs and IFNWs.
| Pairwise analysis group | p-value | dN-dS |
| Positive selection | ||
| IFNA2; IFNA3 | 0.016 | 2.159 |
| IFND9; IFND11 | 0.010 | 2.361 |
| Overall IFNDs | 1.000 | -2.323 |
| Overall IFNAs | 1.000 | -0.577 |
| Overall IFNWs | 1.000 | -1.622 |
| Purifying selection | ||
| IFNA2; IFNA17 | 0.045 | -1.707 |
| IFNA8; IFNA17 | 0.040 | -1.769 |
| IFNA15; IFNA17 | 0.030 | -1.906 |
| IFND1; IFND7 | 0.008 | -2.431 |
| IFND2; IFND7 | 0.008 | -2.431 |
| IFND3; IFND5 | 0.029 | -1.912 |
| IFND3; IFND6 | 0.010 | -2.355 |
| IFND3; IFND7 | 0.000 | -3.770 |
| IFND3; IFND9 | 0.048 | -1.677 |
| IFND3; IFND11 | 0.043 | -1.732 |
| IFND4; IFND6 | 0.009 | -2.384 |
| IFND4; IFND5 | 0.025 | -1.974 |
| IFND4; IFND7 | 0.000 | -3.913 |
| IFND4; IFND9 | 0.043 | -1.736 |
| IFND4; IFND11 | 0.038 | -1.790 |
| IFND5; IFND6 | 0.017 | -2.142 |
| IFND6; IFND7 | 0.008 | -2.456 |
| IFND6; IFND10 | 0.019 | -2.097 |
| IFND7; IFND10 | 0.000 | -3.620 |
| IFNW3; IFNW6 | 0.044 | -1.719 |
| IFNW4; IFNW6 | 0.029 | -1.921 |
| IFNW6; IFNW7 | 0.020 | -2.069 |
| Overall IFNDs | 0.011 | -2.323 |
| Overall IFNAs | 0.283 | -0.577 |
| Overall IFNWs | 0.054 | -1.622 |