1. College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China
2. Nara Institute of Science and Technology, Biological Sciences, Plant Stem Cell Regulation and Floral Patterning Laboratory, Takayama, Ikoma, Nara, Japan
3. Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, Honcho, Kawaguchi-shi, Saitama, Japan
4. Archisen, Singapore, Singapore