| Inheritance mode of microsatellite loci and their use for kinship analysis in the Pacific oyster （Crassostrea gigas） |
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| 引用本文： | 李琪,郑小东,于瑞海.Inheritance mode of microsatellite loci and their use for kinship analysis in the Pacific oyster （Crassostrea gigas）[J].中国海洋与湖沼学报,2008,26(3). |
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| 作者姓名： | 李琪 郑小东 于瑞海 |
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| 作者单位： | Fisheries College，Ocean University of China，Qingdao 266003，China |
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金 |
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| 摘 要： | Five full-sib families of the Pacific oyster(Crassostrea gigas) larvae were used to study the mode of inheritance at eight microsatellite loci,and the feasibility of these markers for kinship estimate was also examined.All eight microsatellite loci were compatible with Mendelian inheritance.Neither evidence of sex-linked barriers to transmission nor evidence of major barriers to fertilization between gametes from the parents was shown.Three of the eight loci showed the presence of null alleles in four families,demonstrating the need to conduct comprehensive species-specific inheritance studies for microsatellite loci used in population genetic studies.Although the null allele heterozygotes were considered as homozygotes in the calculation of genetic distance,offspring from five full-sib families were unambiguously discriminated in the neighbor-joining dendrogram.This result indicates that the microsatellite markers may be capable of discriminating between related and unrelated oyster larvae in the absence of pedigree information,and is applicable to the investigation of the effective number of parents contributing to the hatchery population of the Pacific oyster.
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| 关 键 词： | 牡蛎 血缘关系 遗传模式 生长特性 |
Inheritance mode of microsatellite loci and their use for kinship analysis in the Pacific oyster (Crassostrea gigas) |
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| LI Qi,ZHENG Xiaodong,YU Ruihai Fisheries College,Ocean University of China,Qingdao ,China.Inheritance mode of microsatellite loci and their use for kinship analysis in the Pacific oyster (Crassostrea gigas)[J].Chinese Journal of Oceanology and Limnology,2008,26(3). |
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| Authors: | LI Qi ZHENG Xiaodong YU Ruihai Fisheries College Ocean University of China Qingdao China |
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| Institution: | Fisheries College, Ocean University of China, Qingdao 266003, China |
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| Abstract: | Five full-sib families of the Pacific oyster (Crassostrea gigas) larvae were used to study the mode of inheritance at eight microsatellite loci, and the feasibility of these markers for kinship estimate was also examined. All eight microsatellite loci were compatible with Mendelian inheritance. Neither evidence of sex-linked barriers to transmission nor evidence of major barriers to fertilization between gametes from the parents was shown. Three of the eight loci showed the presence of null alleles in four families, demonstrating the need to conduct comprehensive species-specific inheritance studies for microsatellite loci used in population genetic studies. Although the null allele heterozygotes were considered as homozygotes in the calculation of genetic distance, offspring from five full-sib families were unambiguously discriminated in the neighbor-joining dendrogram. This result indicates that the microsatellite markers may be capable of discriminating between related and unrelated oyster larvae in the absence of pedigree information, and is applicable to the investigation of the effective number of parents contributing to the hatchery population of the Pacific oyster. |
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| Keywords: | Crassostrea gigas microsatellites inheritance kinship analysis |
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