Adaptive evolution and structure modeling of rbcL gene in Ephedra

作者：Liu Nian; Wang QingBiao; Chen Jie; Zhu Yong; Tashi, Tsering; Hu YiYao; Chen Fan; Zhong Yang^*

来源：Chinese Science Bulletin, 2010, 55(22): 2341-2346.

DOI：10.1007/s11434-010-3023-9

• Ephedra
• gymnosperms
• rbcL
• adaptation evolution
• 3D structure modeling

The adaptive evolution of the rbcL gene in 14 species of Ephedra and 9 other gymnosperms was tested by the PAML program. Three large-scale selections were found in the catalytic region of the RbcL protein by branch model. Species in Ephedra with positive selection at the 365th codon site in rbcL gene were detected by branch-site model. 3D structure modeling showed that the 365th codon could change the spatial structure of the beta-sheet (beta G, beta H, or beta E) of the RbcL protein. These changes may be associated with the adaptation of the protein in Ephedra to the environment.

• 出版日期2010-8
• 单位复旦大学; 中国科学院遗传与发育生物学研究所; 西藏大学