TABLE 4.
The cell wall related gene classes from the initial cell wall QTLs whose conservation through SQTLs resulted highest and lowest.
| Gene function | Broad cell wall process | Conservation level in SQTLs | Copy number in cell wall QTLs | Copy number in SQTLs (for species with available QTLs) | Copy number decrement SQTLs/QTLs (%) |
| STL | Cellulose synthesis | Highly conserved | 1 | 1 | 0 |
| BLH9 | Transcription factor | Highly conserved | 4 | 4 | 0 |
| KNAT3 | Transcription factor | Highly conserved | 2 | 2 | 0 |
| MYB46 | Transcription factor | Highly conserved | 4 | 4 | 0 |
| MYB52 | Transcription factor | Highly conserved | 5 | 5 | 0 |
| MYB54 | Transcription factor | Highly conserved | 5 | 5 | 0 |
| MYB83 | Transcription factor | Highly conserved | 4 | 4 | 0 |
| CESA (II) | Cellulose synthesis | Highly conserved | 10 | 9 | 10 |
| UAfT | Hemicellulose metabolism | Highly conserved | 10 | 9 | 10 |
| UXT | Hemicellulose metabolism | Highly conserved | 10 | 9 | 10 |
| UUAT | Hemicellulose metabolism | Highly conserved | 19 | 17 | 11 |
| NST1 | Transcription factor | Highly conserved | 8 | 7 | 13 |
| NST2 | Transcription factor | Highly conserved | 8 | 7 | 13 |
| NST3 | Transcription factor | Highly conserved | 8 | 7 | 13 |
| WRKY12 | Transcription factor | Highly conserved | 8 | 7 | 13 |
| GATL | Pectin metabolism | Highly conserved | 14 | 12 | 14 |
| RHM | Pectin metabolism | Highly conserved | 14 | 12 | 14 |
| XND1 | Transcription factor | Highly conserved | 7 | 6 | 14 |
| UGE | Hemicellulose metabolism | Highly conserved | 12 | 10 | 17 |
| MYB58 | Transcription factor | Highly conserved | 6 | 5 | 17 |
| MYB63 | Transcription factor | Highly conserved | 6 | 5 | 17 |
| UGP | Cellulose synthesis | Highly conserved | 5 | 4 | 20 |
| F5H | Lignin metabolism | Highly conserved | 5 | 4 | 20 |
| WND | Transcription factor | Highly conserved | 39 | 31 | 21 |
| ERF | Transcription factor | Highly conserved | 34 | 27 | 21 |
| IRX8 | Hemicellulose metabolism | Highly conserved | 54 | 42 | 22 |
| QUA1 | Pectin metabolism | Highly conserved | 54 | 42 | 22 |
| PARVUS | Hemicellulose metabolism | Highly conserved | 44 | 34 | 23 |
| PGI | Pectin metabolism | Poorly conserved | 72 | 21 | 71 |
| FMT | Lignin metabolism | Poorly conserved | 14 | 4 | 71 |
| UGD | Hemicellulose metabolism | Poorly conserved | 4 | 1 | 75 |
| SND2 | Transcription factor | Poorly conserved | 4 | 1 | 75 |
| SND3 | Transcription factor | Poorly conserved | 4 | 1 | 75 |
| CAD | Lignin metabolism | Poorly conserved | 52 | 11 | 79 |
| C4H | Lignin metabolism | Poorly conserved | 5 | 1 | 80 |
| DIR | Lignin metabolism | Poorly conserved | 44 | 8 | 82 |
| UGT75B1 | Callose synthesis | Poorly conserved | 12 | 2 | 83 |
| SPS | Cellulose synthesis UDP Glu supply | Poorly conserved | 6 | 1 | 83 |
| AGAL | Other cell wall protein | Poorly conserved | 6 | 1 | 83 |
| XYN | Other cell wall protein | Poorly conserved | 12 | 2 | 83 |
| COMT | Lignin metabolism | Poorly conserved | 19 | 3 | 84 |
| BGLU45 | Lignin metabolism | Poorly conserved | 20 | 3 | 85 |
| KTN1 | Other cell wall protein | Poorly conserved | 2 | 0 | 100 |
| MANT | Other cell wall protein | Poorly conserved | 1 | 0 | 100 |
| PNT | Other cell wall protein | Poorly conserved | 1 | 0 | 100 |
| AXY9 | Hemicellulose metabolism | Poorly conserved | 1 | 0 | 100 |
| MAN | Hemicellulose metabolism | Poorly conserved | 4 | 0 | 100 |
| E2FC | Transcription factor | Poorly conserved | 2 | 0 | 100 |
| MYB75 | Transcription factor | Poorly conserved | 3 | 0 | 100 |