The sequences of Cyt b gene were amplified by PCR and sequenced to obtain the whole sequences of Cyt b gene in 10 individuals sampled randomly from four scallop species including rock scallop Crassadoma gigantea,bay scallop Argopecten irradians,Zhikong scallop Chlamys farreri and yesso scallop Patinopecten yessoensis to understand the genetic variation and the relationships among the four scallop species. Then,the related analysis of sequence characterization,genetic diversity,genetic distance and phylogene...