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将外源性或内源性双链RNA(double-stranded RNA,dsRNA)导入细胞后引起与该段RNA同源的mRNA产生特异性降解,其相应的基因受到抑制,这种发生在转录后的基因沉默(Posttranscriptional gene silencing,PTGS)[1]现象被称
The introduction of exogenous or endogenous double-stranded RNA (dsRNA) into cells causes specific degradation of mRNA homologous to that segment of RNA, and the corresponding gene is repressed, which occurs after transcription Posttranscriptional gene silencing (PTGS) [1] phenomenon is said