TABLE 1.
Likelihood-ratio tests of molecular clock for a putative seed maturation protein, an ATP-dependent metalloprotease, and a hydroxylase
| Gene | Substitution modela | 2ΔL | d.f. | P-value |
|---|---|---|---|---|
| SMP first and second position | K80 + G | 4.607 | 5 | 0.466 |
| SMP third position | HKY | 11.620 | 5 | 0.040 |
| SMP all three positions | HKY + G | 3.062 | 5 | 0.690 |
| ADM first and second position | TrN + G | 355.559 | 4 | <0.01 |
| ADM third position | HKY + G | 14.186 | 4 | 0.007 |
| ADM all positions | TrN + G | 27.097 | 4 | <0.01 |
| ADM first position | GTR + G | 6.894 | 4 | 0.486 |
| ADM second position | TrN + G | 29.600 | 4 | <0.01 |
| HX first position | HKY + G | 12.863 | 4 | 0.012 |
| HX second position | HKY + G | 5.397 | 4 | 0.249 |
| HX third position | HKY + G | 5.155 | 4 | 0.272 |
| HX first and second position | HKY + G | 7.721 | 4 | 0.102 |
| HX all positions | HKY + G | 7.809 | 4 | 0.099 |
SMP, seed maturation protein; ADM, ATP-dependent metalloprotease; HX, hydroxylase.
a
K80 is the Kimura-2-parameter model (Kimura 1980), HKY is the Hasegawa, Kishino, Yano model (Hasegawa et al. 1985), TrN is the Tamura-Nei model (Tamura and Nei 1993), GTR is the general time reversible model (Rodriguez et al. 1990), and +G stands for rate variation among sites.