SNP (Single Nucleotide Polymorphism), SNV ( single nucleotide variants ) , Indel (insertion-deletion) 的区别

SNP (Single Nucleotide Polymorphism), SNV ( single nucleotide variants ) , Indel (insertion-deletion) 的区别

SNP (Single Nucleotide Polymorphism):强调在一个群体中具有一定频率的变异，一般为二态性。比如G→C

SNV ( single nucleotide variants ) :包含多种单核苷酸变异，比如该位点可能由T变C，也可能由T变A。则T→C,A。SNV并没有强调在一个群体中具有一定的频率。

 Indel (insertion-deletion) ：插入和缺失，涉及多个核苷酸的改变，插入：G→GTC, 缺失：GTC→G