Gene | pp | n (m) | bp | ө | k | ω (M0) | M0:M3 | M7:M8 | M8:M8a |
---|
Galm
| −1 | 28 (2) | 681 | 0.11 | 1.86 | 0.16 |
210.93**
|
6.08*
| 0.68 |
Pgi1
| 2 | 20 (3) | 1452 | 0.06 | 2.80 | 0.10 |
292.65**
|
21.92**
|
15.33**
|
Pgi2
| 2 | 28 (4) | 675 | 0.08 | 4.69 | 0.10 |
216.97**
|
16.55**
|
4.59*
|
Tpi
| 5 | 28 (1) | 651 | 0.09 | 2.37 | 0.14 |
53.06**
| 1.27 | 0.95 |
Gapdh
| 6 | 29 (2) | 837 | 0.09 | 2.60 | 0.04 |
126.85**
|
10.78*
| 0.24 |
Pgk
| 7 | 29 (1) | 915 | 0.13 | 2.70 | 0.19 |
283.07**
| 3.34 | 0.57 |
Pglym
| 8 | 27 (0) | 486 | 0.10 | 3.67 | 0.08 |
153.05**
| 2.10 | 0.68 |
Eno
| 9 | 25 (1) | 903 | 0.09 | 1.99 | 0.11 |
131.51**
| 1.89 | 0.01 |
Pyk
| 10 | 29 (2) | 777 | 0.10 | 3.07 | 0.04 |
146.00**
| 0.00 | 0.00 |
Pdh
| +1 | 27 (2) | 729 | 0.09 | 3.95 | 0.05 |
103.29**
| 0.46 | 0.00 |
- Selection inferred using likelihood ratio tests between nested site-specific models.
- Eno = Enolase; Galm = Aldose 1-epimerase; Gapdh = Glyceraldehyde 3-phosphate dehydrogenase; Pdh = Pyruvate dehydrogenase; Pgi1 = Phosphoglucose isomerase 1; Pgi2 = Phosphoglucose isomerase 2; Pgk = Phosphoglycerate kinase; Pglym = Phosphoglycerate mutase; Pyk = Pyruvate kinase; Tpi = Triosephosphate isomerase; PP = pathway position of the enzyme out of the ten key glycolysis reactions, N.B. Galm and Pdh are the steps immediately before and after the pathway. n = number of species with complete and partial (m) sequences; bp = sequence length; ө = nucleotide diversity; k = ratio of transitions to transversions; ω(M0) = ratio of synonymous to nonsynonymous substitutions under the M0 model; 2∆l is given for each model comparison (MO:M3; M7:M8 and M8:M8a), which is twice the difference between the log likelihood of the two nested site-specific models implemented in PAML. Models are judged to have a significantly better fit (* = P-value < 0.05; ** = P-value < 0.001) based on the χ2 distribution with degrees of freedom proportional to the difference in the number of parameters between models; M7/M8 = 2, M8/M8a = 50:50 mixture of point mass 0 and 1.