THE GENETIC DIVERSITY AND GENETIC STRUCTURE OF THREE CULTURED MYTILUS EDULIS POPULATIONS
紫贻贝(Mytilus edulis)养殖群体的遗传多样性及遗传结构分析

The genetic diversity and genetic structure of three cultured populations (Yantai of Shandong province, Rushan of Shandong province and Dongji of Zhejiang province) of Mytilus edulis were determined using the mitochondrial gene sequencing technology (COⅢ). The result revealed 18 haplotypes for total 32 individuals obtained using PCR method. The haplotype diversities (Hd), nucleotide diversities (Pi) and the average nucleotide differences (K) were 0.946, 0.0207 and 15.316, respectively, which showed high genetic diversity among populations. The fixation indices (Fst) of three populations showed that there was no genetic differentiation between Yantai and Rushan populations and significant genetic differentiation between Dongji and the other two populations.