Fig. 6
From: Over-expression of poplar NAC15 gene enhances wood formation in transgenic tobacco
Relative expression level of lignin- and cellulose-related genes. The relative expression level of lignin- and cellulose-related genes was higher in the TLs than that in the CLs. TL1–5, transgenic lines; CL, control line. Mean values and standard errors were calculated from three independent biological experiments. * indicates P < 0.05, ** indicates P < 0.01