摘要插入/缺失（insertion/deletion，InDel）多态性是指基因组中插入或缺失不同大小的 DNA 片段所形成的多态性遗传标记[1]。InDel 为一种特殊类型的二等位基因遗传标记，PCR 产物能通过现有的毛细管电泳平台进行分型检测，容易获得较短的扩增片段，尤其适合高度降解的生物样本分型，突变率低，适合亲缘关系鉴定。
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