文献类型: 外文期刊
作者: Chang Yumei 1 ; Ding Lei 1 ; Li Mingyun 4 ; Xue Liangyi 4 ; Liang Liqun 1 ; He Jianguo 2 ; Lei Qingquan 5 ;
作者机构: 1.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150070, Peoples R China
2.Zhongshan Univ, Coll Life Sci, Guangzhou 510275, Guangdong, Peoples R China
3.Dalian Fisheries Univ, Life Sci Technol Inst, Dalian 116023, Peoples R China
4.Ningbo Univ, Life Sci & Biotechnol Fac, Ningbo 315211, Zhejiang, Peoples R China
5.Harbin Univ Sci & Technol, Coll Elect & Elect Engn, Harbin 150080, Peoples R China
关键词: Pseudosciaena crocea;microsatellite marker;bred stock;germplasm;admix
期刊名称:ACTA OCEANOLOGICA SINICA ( 影响因子:1.431; 五年影响因子:1.445 )
ISSN: 0253-505X
年卷期: 2008 年 27 卷 4 期
页码:
收录情况: SCI
摘要: The germplasm of breeding large yellow croaker (Pseudosciaena crocea Richardson) was revealed using 12 microsatellite markers. The results showed that the genetic diversities were on a mediated level in the bred Daiqu and Min - Yue stocks and two hybrid groups, as represented by 4.83 of the mean number of alleles and 0.561 of the average observed heterozygosity. The value of pair-wise differentiation coefficient(F-ST) was only 13.1% between Daiqu and Min - Yoe stocks, demonstrating the low level of differentiation and a close relationship. However, STRUCTURE simulations and phylogenetic tree based on the UPGMA method supported that they are geographically different populations of the same species with distinct genetic structures. Examinations of individual admixture showed that Min - Yue stock had been contaminated by alien individuals. Moreover, the genetic structures of the two hybrid groups resembled those of their parents, especially affected more by their female parents. Finally, the values of average observed heterozygosity between parents and their ascendants were compared and tested, as a result of no detectable differences (P > 0.05).
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