Table II.
Overrepresentation of Arabidopsis GO categories related to transcriptional regulation
| Categories | Description | Oi,Ea | Oi,Ua | Obs. % in EOGb | Ei,Ea | Ei,Ua | Exp. % in EOGb | P Valuec |
|---|---|---|---|---|---|---|---|---|
| Molecular function | ||||||||
| GO:0016563 | Transcriptional activator activity | 19 | 4 | 82.6 | 12.2 | 10.8 | 53.0 | 0.005 |
| GO:0003700 | TF activity | 565 | 242 | 70.0 | 428.7 | 378.3 | 53.0 | 6.890e-22 |
| Biological process | ||||||||
| GO:0045449 | Regulation of transcription | 170 | 73 | 70.0 | 126.6 | 116.4 | 52.0 | 2.560e-08 |
| GO:0006355 | Regulation of transcription, DNA dependent | 398 | 188 | 67.9 | 305.4 | 280.6 | 52.0 | 1.870e-14 |
a
For each category i, Oi,E is the observed number of genes in expanded OGs, Oi,U is the observed number of genes in unexpanded OGs, Ei,E is the expected number of genes in expanded OGs, and Ei,U is the expected number of genes in unexpanded OGs.
b
Observed (Obs.) or expected (Exp.) percentage of genes in expanded OGs (EOG).
c
For each category, the observed numbers of genes were compared to the expected in a 2 × 2 contingency table with chi-squared test. The significance (P value) of the chi-squared statistics is shown.