Fig. 4

Saccharification yield of P. deltoides PtGAUT12.1-overexpression lines. A Glucose, B xylose, and C total sugar release from P. deltoides WT, vector control, and PtGAUT12.1-OE lines. Data are mean ± SE, n = 25 for WT, n = 120 for vector control (eight different insertion vector control lines, each with n = 15, see Additional file 1 for the full dataset), and n = 10–15 for the PtGAUT12.1-OE lines. Statistical analysis was by one-way analysis of variance (ANOVA) followed by Tukey’s multiple comparison test using Statistica 5.0