水生生物学报Issue(6)：1007-1012,6.DOI:10.7541/2013.134
武汉东湖圆形盘肠溞种群遗传结构分析
GENETIC STRUCTURES OF CHYDORUS SPHAERICUS POPULATIONS FROM LAKE DONGHU, WUHAN
摘要
Abstract
To estimate the possible influence of the artificial embankments on the genetic structure of Chydorus sphaericus in Lake Donghu, the COⅠgene of C. sphaericus from Lake Donghu, Wuhan, was analyzed with classical DNA sequencing. The results showed that C. sphaericus collected from seven sampling sites at Lake Donghu were not classified into different groups. Both global test and pairwise difference test indicated that there was no remarkable in-heritance difference among seven C. sphaericus populations. The N-J tree indicated that COⅠgene of C. sphaericus from Lake Donghu was clustered into one group and those from different regions were clustered into different groups except Lake Kookatsoon, Yukon Territory, which were clustered into the Lake Donghu group. The correlation analysis between pairwise distances of COⅠgene sequences of C. sphaericus and geography distances among sampling sites showed that there were distance-decay relationships regardless within Lake Donghu or in larger scales. This result indi-cated that there was distribution restriction in C. sphaericus populations. In conclusion, the artificial embankments in Lake Donghu that were built 50 years ago did not cause remarkable influence on the genetic structure of C. sphaericus population in Lake Donghu. The relatively strong passive diffusivity of C. sphaericus in small scales may be one of the reasons that neutralized the influence of the artificial embankments on the population genetic structure.关键词
武汉东湖/圆形盘肠溞/COⅠ基因/遗传结构Key words
Lake Donghu/Chydorus sphaericus/COⅠgene/Genetic structure分类
生物科学引用本文复制引用
胡红娟,颜庆云,倪加加,余育和,李学梅,王纯..武汉东湖圆形盘肠溞种群遗传结构分析[J].水生生物学报,2013,(6):1007-1012,6.基金项目
国家自然科学基金(31071896) （31071896）
中国科学院知识创新工程青年人才领域前沿项目(Y15E04) （Y15E04）
中国科学院青年创新促进会(Y22Z07)资助 （Y22Z07）
