The development of biotechnology and molecular biology make it possible for us to regulate or even control the plant traits, by using DNA sequence information, such as the structure, function and mechanism etc. DNA technologies based on DNA molecular markers, transgenic technology and gene expression have been widely used in agricultural production which have showed great potential in improving agricultural yields and quality, reducing the loss that various biotic and abiotic stress caused, promoting the utilization of germplasm resource, improving breeding efficiency and strengthening the regulation of plant growth