1. College of Life Sciences, University of Chinese Academy of Sciences , Beijing 100049, China
2. BGI Research , Wuhan 430074, China
3. State Key Laboratory of Agricultural Genomics, Key Laboratory of Genomics, Ministry of Agriculture, BGI Research , Shenzhen 518083, China
4. China National GeneBank, BGI Research , Shenzhen 518120, China
5. Guangdong Genomics Data Center, BGl research , Shenzhen 518120, China
6. South China Agricultural University , Guangzhou 510642, China
7. Centre for Genetic Resources, the Netherlands , P.O. Box 16, Wageningen 6700 AA, The Netherlands