Wan-Jun Chen, Yun Bu, Antonio Carapelli, Romano Dallai, Sheng Li, Wen-Ying Yin and Yun-Xia Luan*
* Corresponding author: Yun-Xia Luan yxluan@sibs.ac.cn
BMC Evolutionary Biology 2011, 11:246 doi:10.1186/1471-2148-11-246