| 一种新的分子遗传相似度计算方法 |
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| 引用本文： | 高会江,杨运清,潘玉春. 一种新的分子遗传相似度计算方法[J]. 遗传, 2001, 23(5): 455-457 |
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| 作者姓名： | 高会江 杨运清 潘玉春 |
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| 作者单位： | 东北农业大学动物科技学院 |
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| 基金项目： | 黑龙江省自然科学基金资助项目(C970082) |
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| 摘 要： | 指出了Nei氏遗传相似度仅仅是用来描述两个二进制变量差异相似程度程度的一种距离系数或相似系数，与个体间亲缘程度没有必然联系。根据亲缘系数的定义，提出新的遗传相传相似计算公式即rA(x,y)=2N^2xy/NxNy或rA(x,y)=N^2/NxNy。并通过实例验证了该公式可用于判断个体间亲缘程度方面。
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| 关 键 词： | 分子遗传相似度 亲缘系数 验证 公式 |
| 文章编号： | 0253-9772(2001)05-0455-03 |
| 修稿时间： | 2000-06-12 |
A New Method for Calculating Molecular Genetic Similarity |
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| GAO Hui jiang,YANG Yun qing,PAN Yu chun. A New Method for Calculating Molecular Genetic Similarity[J]. Hereditas, 2001, 23(5): 455-457 |
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| Authors: | GAO Hui jiang YANG Yun qing PAN Yu chun |
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| Abstract: | Nei's genetic similarity was only described as a kind of distance coefficient for binary system variables and it have not positive connection with the relationship between individuals. According to the definition of the relationship coefficient, a new formula which is about genetic similarity is put forward as following: r A(x,y) =2 N 2 xy N x N yor r A(x,y) = N 2 xy N xN y. It is verified by an example that this formula can be used to judge the relationship between individuals. |
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| Keywords: | genetic similarity relationship coefficient verification |
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