Table 1.
Summary of the results of dN/dS analyses and tests of positive selection
| Test | Inference | Significant results (proportion) |
Difference in proportion |
||
|---|---|---|---|---|---|
| cerebral cortex (n = 47) | cerebellum (n = 53) | Z test | Fisher's exact test | ||
| Site model test | pervasive positive selection | 5 (9.4) | 3 (6.4) | z = 0.561, p = 0.575 | p = 0.716 |
| Branch model test | accelerated evolution in apes | 6 (11.3) | 14 (29.8) | z = 2.304, p = 0.021 | p = 0.026 |
| Branch-site model test | |||||
| All | episodic positive selection in apes | 2 (3.8) | 6 (12.8) | z = 1.654, p = 0.099 | p = 0.143 |
| Restricted1 | episodic positive selection in apes | 0 (0.0) | 4 (10.0) | z = 2.136, p = 0.049 | p = 0.032 |
Values are presented as numbers (%) unless otherwise stated.
1
Excludes genes with significant site-model results.