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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.

From: Gene family structure, expression and functional analysis of HD-Zip III genes in angiosperm and gymnosperm forest trees

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*
  1. 1SD is one standard deviation.
  2. 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