1. College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China
2. Korean Bioinformation Center (KOBIC), Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Republic of Korea
3. Department of Biology, College of Life Sciences, Soochow University, Suzhou 215123, China
4. Department of Bioinformatics, University of Sciences and Technology, Daejeon 305-350, Republic of Korea