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AFLP analysis revealed differences in genetic diversity of four natural populations of Manila clam (Ruditapes philippinarum) in China

文献类型: 外文期刊

作者: Liu Xiangquan 1 ; Bao Zhenmin 2 ; Hu Jingjie 2 ; Wang Shi 2 ; Zhan Aibin 2 ; Liu Hui 2 ; Fang Jianguang 3 ; Wang Rucai;

作者机构: 1.Ocean Univ China, Lab Marine Genet & Breeding, MGB, Qingdao 266003, Peoples R China

2.Ocean Univ China, Lab Marine Genet & Breeding, MGB, Qingdao 266003, Peoples R China; Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

3.Ocean Univ China, Lab Marine Genet & Breeding, MGB, Qingdao 2660

关键词: ruditapes philippinarum;genetic diversity;geographical population;AFLP

期刊名称:ACTA OCEANOLOGICA SINICA ( 影响因子:1.431; 五年影响因子:1.445 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: The amplified fragment length polymorphism (AFLP) technology was used to analyze the genetic diversities in four natural populations of Manila clam (Ruditapes philippinarum), distributed in four sea areas of China, i. e., the Bohai Sea, the Huanghai Sea, the East China Sea and the South China Sea. Two hundred and sixty-four AFLP loci were analysed in 195 individuals and revealed high levels of genetic diversity. The percentage of polymorphic loci ranged from 92.13% to 96.06% and the Shannon's information index was from 0.256 8 to 0.275 6. By analyzing molecular variance (AMOVA), it was found that there were high levels of genetic differentiation between populations of Qingdao and the other three sea areas. Cluster analysis by Nei's pairwise distances grouped specimens by geographical origin, except the population of Qingdao. A conclusion can be drawn that there are high genetic diversities in the four natural populations of Manila clam in China and some distinct differences existed among and between the four populations. The results also indicated that human cultivation activities will have great influence on the genetic structure of the population of Qingdao.

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