应用家系重建鉴定半同胞关系亲权指数计算  

Calculation of the kinship index for identification of half-siblings by the family tree reconstruction method

作　　者：石彰森 张帅 陆之曦 黄琼 徐恩萍[1,2] Shi Zhangsen;Zhang Shuai;Lu Zhixi;Huang Qiong;Xu Enping(Forensic science center of Zhejiang University,Hangzhou 310000,Zhejiang Province,China;Department of Pathology and Pathophysiology,School of Basic Medical Sciences,Zhejiang University,Hangzhou 310000,Zhejiang Province,China)

机构地区：[1]浙江大学司法鉴定中心,浙江杭州310000 [2]浙江大学基础医学院病理学与病理生理学系,浙江杭州310000

出　　处：《中国法医学杂志》2023年第5期520-524,共5页Chinese Journal of Forensic Medicine

基　　金：浙江省基础公益研究计划(LGF21H23001)。

摘　　要：在法医物证鉴定中,目前对于半同胞亲缘关系的鉴定还没有统一的技术规范,较为常用的方法是通过ITO法计算两个被鉴定个体之间的半同胞关系指数进行判定,但在部分实际检案中,即使加测更多数量的STR基因座仍不能达到阈值。本文探讨通过家系重建法鉴定半同胞关系,根据被检孩子生母是否参与鉴定,以及缺席鉴定者不同的推测基因型分别推导亲权指数的计算公式,并对其进行了归纳和总结。In forensic evidence identification,there is currently no uniform technical specification for the identification of half-sibling relationship.The most commonly used method is to calculate the half-sibling relationship index between the two identified individuals through the ITO method for determination.However,in some of the actual prosecution cases,the threshold could not be reached even with the addition of a greater number of STR motifs.This paper explores the identification of half-siblings by means of a family tree reconstruction method.The formulas for the calculation of the parentage index were derived based on the participation or non-participation of the biological mother of the examined child in the identification and the different putative genotypes of the absent identifiers,respectively.

关 键 词：家系重建法 法医物证学 半同胞鉴定 亲权指数 

分 类 号：D919.4[医药卫生—法医学]