1. Centre for Soybean Research of the State Key Laboratory of Agrobiotechnology and School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
2. Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06510, USA
3. Laboratory of Plant Genetics and Genomics, Kazusa DNA Research Institute, Kisarazu 292-0828, Chiba, Japan