Application of poplar glycosyl transferase gene PtGT1 in improving plant lignin content and promoting blossom

The invention discloses application of poplar glycosyl transferase gene PtGT1 in improving plant lignin content and promoting blossom. A nucleotide sequence of the glycosyl transferase gene PtGT1 is shown in an SEQIDNo.1 and is cloned from Chinese white poplar through RT-PCR technology. The application of poplar glycosyl transferase gene PtGT1 in improving plant lignin content and promoting blossom utilizes gene PtGT1 to construct plant over expression vector to perform plant transgene operation to obtain transgene plant. Detection shows that the lignin content of transgene plants is remarkably increased, and simultaneously plants are promoted to blossom earlier. Thus, by means of the application of poplar glycosyl transferase gene PtGT1 in improving plant lignin content and promoting blossom, novel plants can be created, and requirements of industrial and agricultural production can be well met.