Table III. Number of flax unigenes in major TF classes.
| TF Family | No. of Unigenes | No. of Unigenes Up-Regulated in Stem Inner Tissues | No. of Unigenes Up-Regulated in Stem Outer Tissues | No. of Unigenes Not Differentially Regulated |
| Myb | 62 | 8 | 3 | 51 |
| ERF | 13 | 0 | 0 | 13 |
| bZip | 35 | 4 | 0 | 31 |
| MADS | 9 | 0 | 0 | 9 |
| bHLH | 25 | 1 | 1 | 23 |
| HD-ZIP | 18 | 8 | 0 | 10 |
| WRKY | 35 | 3 | 1 | 31 |
| LIM | 13 | 4 | 0 | 9 |
| NAC | 18 | 2 | 2 | 14 |
| DRE | 5 | 0 | 0 | 5 |
| ATH | 3 | 1 | 0 | 2 |
| GRAS | 7 | 1 | 0 | 6 |
| BEL | 3 | 0 | 0 | 3 |
| Others | 367 | 31 | 11 | 325 |
| Total | 613 | 63 | 18 | 532 |