Actin gene family in Branchiostoma belched  

出　　处：《科学教育与博物馆》2016年第1期28-36,共9页Science Education and Museums

摘　　要：Actin is a highly conserved cytoskeletal protein that is found in essentially all eukaryotic cells,which plays a paramount role in several basic functions of the organism, such as the maintenance of cellshape, cell division, cell mobility and muscle contraction. However, little is known about actin gene family inChinese amphioxus （Branchiostoma belcheri）. Here we systemically analyzed the actin genes family inBranchiostoma belched and found that amphioxus contains 33 actin genes. These genes have undergoneextensive expansion through tandem duplications by phylogenetic analysis. In addition, we also providedevidence indicating that actin genes have divergent functions by specializing their EST data in both Bran-chiostoma belched and Branchiostoma florida. Our results provided an alternative explanation for the evolu-tion of actin genes, and gave new insights into their functional roles.

关 键 词：ACTIN GENE family  amphioxus  evolution  EST data 

分 类 号：N[自然科学总论]