Table 1.
Comparison of the evolutionary models
| Model | Variables in the model | Log-likelihood | AIC |
|---|---|---|---|
| LINEAR_RATE_DEMI_EST | Dups/demi/linear loss/linear gain | –259·5 | 531·1 |
| CONST_RATE_DEMI_EST | Dups/demi/loss/gain | –262 | 531·9 |
| LINEAR_RATE_DEMI | Dups = demi/linear loss/linear gain | –262·7 | 535·3 |
| CONST_RATE_DEMI | Dups = demi/loss/gain | –264·9 | 535·9 |
| LINEAR_RATE | Dups/linear loss/linear gain | –392·2 | 794·5 |
| CONST_RATE | Dups/loss/gain | –398·2 | 802·5 |
| LINEAR_RATE_NO_DUPL | Linear gain/linear loss | –589·8 | 1188 |
| CONST_RATE_NO_DUPL | Gain/loss | –699·8 | 1404 |
Note that the models are ranked by their AIC values
Dups, polyploidization; demi, demi-polyploidization; loss, loss of a chromosome; gain, gain of a chromosome; linear, loss and gain rates scaled to the total chromosome number.