Acknowledgments
This work was supported by grants from the National Natural Science
Foundation of China (31572136, 31372061), Development Fund Project of
Fujian Agriculture and Forestry University (CXZX2016158, CXZX2017548).
The authors thank Mark D. Curtis for kindly providing the Gateway
destination vectors and Dr. S. P. Dinesh-Kumar of Yale University for
the pTRV1 and pTRV2 vectors.