Genetic and morphological variation in the venus clam Cyclina sinensis along the coast of China

文献类型： 外文期刊

第一作者： Li, Qi

作者： Li, Qi;Kong, Lingfeng;Zhao, Yuming;Mao, Yuze

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关键词： Cyclina sinensis - Allozyme - Genetic variation - Morphology

期刊名称：HYDROBIOLOGIA （ 影响因子：2.694； 五年影响因子：2.781 ）

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收录情况： SCI

摘要： Six geographic samples of Cyclina sinensis were collected from the coast along China and analyzed to reveal morphological and genetic variation by using nine allozyme loci and 11 morphological variables. The discriminant function analysis (DFA) of morphology suggested a clear separation between the southern and northern populations. Polymorphism was detected at nine loci across all six populations. The mean allele number ranged from 2.44 to 2.78, and the mean observed heterozygosity ranged from 0.218 to 0.296. High level of genetic differentiation was found between three northern populations and three southern populations. The marked genetic differentiation can be explained by the upwelling of the Zhejiang province and the freshwater outflow of Yangtze River. The results obtained in this study indicate that the northern and southern populations of C. sinensis should be treated as separate units for conservation management.

分类号： Q17

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