Accuracy of short sequence repeats on single-parent parentage identification in Chinese shrimp Fenneropenaeus chinensis
文献类型: 外文期刊
作者: Zhang, Kai 1 ; Wang, Weiji 1 ; Kong, Jie 1 ; Luo, Kun 1 ; Jin, Xianshi 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
2.Ocean Univ China, Coll Marine Life Sci, Qingdao 266003, Peoples R China
关键词: Fenneropenaeus chinensis;Microsatellites;Parentage identification
期刊名称:AQUATIC BIOLOGY ( 影响因子:1.8; 五年影响因子:1.945 )
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收录情况: SCI
摘要: Based on the parentage identification results using 4 polymorphic short sequence repeats (SSRs) with both parents known, we assessed the accuracy of parentage identification for a single known parent using the same 4 SSRs and 4 other additional SSRs for 2507 Chinese shrimp Fenneropenaeus chinensis recaptured from Jiaozhou Bay in a 'molecular marker recapture' program. We detected a high variability in the 4 SSR loci EN0033, RS0622, FCKR002, and FCKR013. The 4 polymorphic loci produced a >99.99% cumulative exclusion probability for both known parents. We identified 8 parentage relationships with a logarithm (base 10) of odds (LOD) score of >3.0. Similar results were obtained when the 4 additional SSR loci were included. The cumulative exclusion probability decreased to 99.42% for a single known parent using the old 4 SSR loci, which enabled detection of 30 and 44 parentage relationships with a >3.0 LOD score for known paternity and maternity, respectively. Inclusion of the additional 4 SSR loci raised, the cumulative exclusion probability to >99.99%. However, the number of parentage relationships detected with an LOD score of >3.0 was reduced to 8 for the groups with known paternity or maternity, similar to the result obtained with both parents known. In this study, the accuracy of single-parent parentage identification using SSR loci was confirmed. Authentic parentage identification with a single known parent should incorporate both the cumulative exclusion probability and LOD score. Our researchprovides an alternative method for parentage identification in Chinese shrimp.
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