Table 3.
Differential transcript level of HD-Zip III genes in developing secondary xylem from P. trichocarpa × P. deltoides (clone H-1111) following removal of the apex or application of an auxin transport inhibitor (NPA), compared to untreated controls.
| Gene | Treatment | Log2-fold difference | SD1 | p-value2 |
|---|---|---|---|---|
| PtdHB1 | apex (-) | -0.5062 | 1.17 | 0.1092 |
| NPA | -1.201 | 1.09 | 0.0270* | |
| PtdHB2 | apex (-) | 0.4671 | 1.17 | 0.4777 |
| NPA | -0.4111 | 0.89 | 0.4307 | |
| PtdHB3 | apex (-) | 0.1637 | 0.91 | 0.4663 |
| NPA | -0.4473 | 0.71 | 0.4762 | |
| PtdHB5 | apex (-) | -1.9739 | 0.69 | 0.0461* |
| NPA | -2.0375 | 1.22 | 0.0496* | |
| PtdHB6 | apex (-) | -0.9145 | 0.91 | 0.1346 |
| NPA | -1.4915 | 1.14 | 0.1090 | |
| PtdHB7 | apex (-) | -1.6421 | 0.76 | 0.0776 |
| NPA | -1.3204 | 1.26 | 0.1725 | |
| PtdHB8 | apex (-) | -0.5686 | 0.98 | 0.1488 |
| NPA | -0.7031 | 1.93 | 0.0455* | |
1SD is one standard deviation.
2p-value is based on Student's t test, N = 2 pools of 3 samples); * indicates the treatment had significant effect a threshold of 0.05