1. Department of Animal Science, Dali Vocational and Technical College of Agriculture and Forestry , Dali 671003 , China
2. CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences , Kunming 650000 , China
3. University of Chinese Academy of Sciences , Beijing 100049 , China Jianjun Li
4. University of Chinese Academy of Sciences , Beijing 100049 , China