Table 4. The result of Gene-set enrichment analysis on functional categories.
| Functional categories | IRBL18 vs LTHP-value | IRBL22 vsLTHP-value | IRBL18 vs IRBL22P-value |
| Secondary metabolism | 0.0079 | 0.0242 | 0.1785 |
| Amino acid metabolism | 0.0255 | 0.0292 | 0.4445 |
| Stress response | 0.0314 | 0.0815 | 0.2068 |
| Lipid metabolism | 0.0429 | 0.1288 | 0.1562 |
| Signaling | 0.0574 | 0.0962 | 0.3255 |
| Protein metabolism | 0.0583 | 0.1571 | 0.1804 |
| Hormone metabolism | 0.07 | 0.3105 | 0.0917 |
| Transporter | 0.0746 | 0.1392 | 0.255 |
| DNA regulation | 0.0972 | 0.2947 | 0.135 |
| Cell wall modification | 0.1084 | 0.1221 | 0.5054 |
| RNA regulation | 0.1142 | 0.3158 | 0.1267 |
| Nucleotide metabolism | 0.1197 | 0.1657 | 0.3717 |
| Redox regulation | 0.1352 | 0.3261 | 0.1332 |
| Development | 0.3478 | 0.4245 | 0.3777 |
| Photosynthesis | 0.4271 | 0.4195 | 0.5273 |