Minakata K, Ishitani A, Ito N, Nagaike C, Morimura Y, Hatake K, Suzuki O
Department of Legal Medicine, Hamamatsu University School of Medicine, Japan.
Nihon Hoigaku Zasshi. 1996 Jun;50(3):149-55.
To calculate the paternity probability in the cases of incest where the alleged father was either the father or the brother of the plaintiff's mother, some algebraic expressions applicable to a simple codominant diallelic genetic marker system were derived by modifying the formulas of Essen-Möller and Komatsu (the both formulas gave the same result). The paternity probability in the incest case is generally lower than that in usual case, because in the former case an allele present in the mother is sometimes found in both the alleged father and the child (plaintiff), even if the alleged father is not true father. The paternity probability in the incest case, however, becomes higher than that in usual case when an allele is common to both the alleged father and the child but not to the mother. The mean value of paternity probability becomes lower, as the relationship becomes closer between the alleged father and the mother.
为计算在乱伦案件中的父权概率，即当被指控的父亲是原告母亲的父亲或兄弟时，通过修改埃森 - 默勒（Essen - Möller）公式和小松公式（这两个公式给出相同结果），推导出了一些适用于简单共显性双等位基因遗传标记系统的代数表达式。乱伦案件中的父权概率通常低于普通案件，因为在前一种情况下，即使被指控的父亲不是真正的父亲，母亲体内存在的一个等位基因有时也会在被指控的父亲和孩子（原告）身上都出现。然而，当一个等位基因在被指控的父亲和孩子身上都存在而母亲身上不存在时，乱伦案件中的父权概率就会高于普通案件。随着被指控的父亲与母亲之间的关系越紧密，父权概率的平均值就越低。
