Table 2 Results of log-likelihood ratio tests that compare different site models
Test for | Null Model | Experimental Model | df | P-value |
|---|---|---|---|---|
Difference in ω among sites | Model 0 (one ratio) | Model 1A (nearly neutral) | 2 | < 0.0001 |
Positive selection | Model 1A (nearly neutral) | Model 2A (positive selection) | 2 | > 0.9996 |
Difference in ω among sites | Model 0 (one ratio) | Model 3 (discrete) | 2 | < 0.0001 |
Positive selection | Model 7 (beta) | Model 8 (beta & ω) | 2 | < 0.0001 |