Genetic and morphological variation in the venus clam Cyclina sinensis along the coast of China
Genetic and morphological variation in the venus clam Cyclina sinensis along the coast of China
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DOI：
10.1007/s10750-009-9916-4
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发表时间：
2009-08
期刊：
影响因子：
2.6
通讯作者：
Yuming Zhao;Qi Li;L. Kong;Yu-ze Mao
中科院分区：
文献类型：
--
作者：
Yuming Zhao;Qi Li;L. Kong;Yu-ze Mao
Six geographic samples ofCyclinasinensiswere 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 ofC.sinensisshould be treated as separate units for conservation management.
