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Test for linkage and association in general pedigrees: the pedigree disequilibrium test
Test for linkage and association in general pedigrees: the pedigree disequilibrium test
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机译:通用谱系中的链接和关联测试:谱系不平衡测试
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摘要
The present invention provides a method for the analysis of linkage disequilibrium between at least one marker locus and a disease or trait locus of interest. The method comprises the steps of: (a) providing a data set comprising a marker locus with at least two alleles for a plurality of extended pedigrees (e.g., plant pedigrees, animal pedigrees), where N is the number of unrelated extended pedigrees, at least one of said extended pedigrees containing at least one informative nuclear family or informative discordant sibship; then (b) determining a random variable XT for each triad within an informative nuclear family for each allele Mi; (c) determining a random variable XS for each DSP within an informative discordant sibship for each allele M1; (d) determining a summary random variable D from XS and XT for each of said extended pedigrees for each allele M1; and then (e) determining a statistic T from each of said summary random variables D from each of said N unrelated extended pedigrees for each allele Mi. An extreme (large or small) value for T indicates greater linkage disequilibrium.
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机译:本发明提供了一种用于分析至少一个标记基因座与感兴趣的疾病或性状基因座之间的连锁不平衡的方法。该方法包括以下步骤:(a)提供一个数据集,该数据集包括具有多个延伸谱系(例如植物谱系,动物谱系)的至少两个等位基因的标记基因座,其中N是不相关的延伸谱系数。至少一个所述的谱系,包含至少一个情报性的核家庭或情报性的不和谐同胞;然后(b)为每个等位基因M i Sub>的信息性核家族中的每个三元组确定一个随机变量X T Sub>; (c)为每个等位基因M 1 Sub>的信息性不一致同胞中的每个DSP确定随机变量X S Sub>; (d)从X S Sub>和X T Sub>为每个等位基因M 1 Sub>的每个所述扩展谱系确定汇总随机变量D;然后(e)根据每个等位基因M i Sub>的所述N个不相关的扩展谱系中的每个摘要随机变量D中的每个确定统计量T。 T的极端(大或小)值表示更大的连锁不平衡。
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