Guiyou Liu1, Keshen Li2. 1. Genome Analysis Laboratory, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Xiqi Dao 32, Tianjin Airport Economic Area, Tianjin, 300308, China. Electronic address: liuguiyou1981@163.com. 2. Institute of Neurology, Guangdong Medical College, Zhanjiang, China.