1. School of Life Sciences Central South University Changsha 410078 China
2. State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology Hunan University Changsha 410082 China
3. Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation Hunan University Changsha 410082 China
4. Department of Plant and Microbial Biology University of California Berkeley CA 94720 USA
5. State Key Laboratory of Hybrid Rice Hunan Hybrid Rice Research Center Changsha 410125 China