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短串联重复序列(ShortTandemRepeatSTR)即微卫星位点,是一种广泛存在于人类基因组、以2～6个碱基为单位的串联重复排列的序列。STR具有高度多态性,可以作为一种理想的遗传标记,广泛应用于连锁图和单基因病等遗传病的相关基因定位。
Short Tandem Repeat (ShortTandemRepeatSTR) microsatellite locus, is a widespread in the human genome, in 2-6 base units arranged in tandem sequence. STR is highly polymorphic and can be used as an ideal genetic marker for gene mapping of genetic diseases such as linkage map and single gene disease.