1. Agricultural Biotechnology Research Center, Academia Sinica, Taipei 115, Taiwan
2. Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, National Chung-Hsing University and Academia Sinica, Taipei 115, Taiwan
3. Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung 402, Taiwan
4. Department of Life Sciences, National Chung-Hsing University, Taichung 402, Taiwan