2015, 28(4): 593-596.
In this study, the transgenic poplar (Populus × euramericana‘Guariento’) harboring five exogenous genes (SacB, Vgb, BtCry3A, OC-I and JERF36#) and the control plants were selected, comparing the wood property variation of 5-year-old trees, and trying to understand whether the transgenic of exogenous genes produce unintended effects. The results showed that the transgenic of exogenous genes caused a wide range of variation in non-target wood properties, the variations were found not only between transgenic and wild-type lines, but also among transgenic lines. Compared with the control, the transgenic lines, the contents of holocellulose and cellulose increased, the total lignin and acid soluble lignin decreased, the fiber length, the fiber width, the microfibril angle and the acid insoluble lignin varied uncertainly. It is concluded that the introduced exogenous gene could generate unintended effects on corresponding non-target target traits.