1. Laboratory of Ancient DNA; Department of Molecular Biology; School of Life Sciences, Jilin University; Changchun 130012 China
2. Department of Biopharmacy; College of Pharmacia Sciences; School of Life Sciences, Jilin University; Changchun 130012 China
3. Research Center for Chinese Frontier Archaeology; Department of Archaeology, Jilin University; Changchun 130012 China
4. Department of Biology; College of Life Science; Jilin Normal University; Siping 136000 China