Phylogenetic Relationships among Members in Salmoninae and Genetic Variation amongDifferent Populationsof Rainbow Trout Farmedin China Basedon Cytb Sequence
Abstract：The Cytb sequences were amplified by PCR technique ,and genetic diversity was analyzed in different populations of rainbow trout Oncorhynchus mykiss farmed in China . The phylogenetic relationships among members in Salmoninae were established by comparing with the sequences from eleven other species representing five genera in subfamily Salmoninae .The results showed that the local rainbow trout population (0 .001 ) had the minimal intraspecies genetic distance ,and Donaldsons population the maximal (0 .004) .In the interspecies ,however ,there was the maximal genetic distance (0 .127) between taimen Hucho taimen and masou salmon O . masou ,followed by between taimen and coho salmon O . kisutch(0 .123)and the minimal genetic distances between Siberian char Salvelinus leucomaenis and brook trout S .fontinalis (0 .003) .Clustering analysis revealed that fish in the same genus was separately clustered ,lenok Brachymystax and H ucho being clustered together ,and Oncorhynchus and Salvelinus being clustered together .No clustering was observed in the individuals of different rainbow trout populations ,indicating that different populations of rainbow trout seem to have no significant genetic differentiation .
收稿日期: 2015-06-25
引用本文:
王伟伟. 基于细胞色素b基因序列分析我国鲑亚科鱼类系统发育关系和不同虹鳟养殖群体遗传变异[J]. 水产科学, 2015, (6): 386-390.
WANG Weiwei. Phylogenetic Relationships among Members in Salmoninae and Genetic Variation amongDifferent Populationsof Rainbow Trout Farmedin China Basedon Cytb Sequence. Fisheries Science, 2015, (6): 386-390.
