1. College of Bioscience and Biotechnology; Hunan Agricultural University; Changsha China
2. Advanced Biotechnology and Application Research Center; School of Chemistry and Biological Engineering; University of Science and Technology Beijing; Beijing China
3. Beijing Engineering Laboratory of Main Crop Biotechnology Breeding; Beijing Solidwill Sci-Tech Co. Ltd.; Beijing China
4. Beijing Key Laboratory of Maize DNA Fingerprinting and Molecular Breeding; Maize Research Center; Beijing Academy of Agriculture & Forestry Sciences; Beijing China