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1)  Post-transcriptional gene silencing
转录后基因沉默
1.
RNA interference(RNAi) refers to the process where by double-stranded RNA(dsRNA) induces sequence-specific post-transcriptional gene silencing(PTGS).
RNA干扰(RNA i)是由双链RNA(doub le-stranded RNA,dsRNA)介导的、序列特异的转录后基因沉默机制,是一古老的细胞反应通路,其在抵抗病毒感染、抑制转座子活动、调控内源性基因表达等方面发挥重要作用。
2.
RNAi is a mechanism of post-transcriptional gene silencing (PTGS) initiated by the introduction of double-stranded RNA(dsRNA) and can be used as a powerful tool to knock out the expression of specific genes in a variety of organisms.
RNA干涉(RNA interference,RNA1)是由双链RNA导入而引起的转录后基因沉默,它可以作为一种有力的工具在多种有机体中抑制特异性基因的表达。
3.
Gene silencing is the main factor of transgene inactivity?There are two kinds of gene silencing,tran-scriptional gene silencing and post-transcriptional gene silencing.
一种是由于DNA甲基化、异染色质化以及位置效应等引起的转录水平上的基因沉默 ;另一种是转录后基因沉默 ,有活跃的启动子 ,能转录外源基因 ,核内有正常水平的mRNA ,细胞质不积累mRNA。
2)  PTGS
转录后基因沉默
1.
Post-transcriptional Gene Silencing(PTGS) and Its Application to Crop Genetic Improvement;
转录后基因沉默(PTGS)及其在作物遗传改良中的应用
2.
Posttranscriptional gene silencing(PTGS) is considered to be one of dominant mechanisms of RNA-mediated resistance.
转录后基因沉默现象是植物抵御病毒入侵、保持自身基因组完整性的一种防御机制。
3)  post transcriptional gene silencing
转录后基因沉默
1.
Virus Inhibitory Protein of Post Transcriptional Gene Silencing and Its Inhibitory Mechanism;
抑制转录后基因沉默的病毒蛋白及其抑制机制
2.
Homology dependent gene silencing (HdGS),which is the generic term for transcriptional gene silencing (TGS),post transcriptional gene silencing (PTGS) and RNA mediated virus resistance (RmVR) have been shown to frequently occur in transgenic plants.
基因沉默研究中所发现的转录后基因沉默现象是植物抵御病毒入侵、保持自身基因组完整性的一种防御机制 ,是植物与病毒共进化的结果。
3.
Since transgene silencing was found in transgenic plants,many scholars have studied it extensively and considered that it has three functional mechanisms:post dependent gene silencing,transcriptional gene silencing,post transcriptional gene silencing.
本文对转基因植物转录后基因沉默的特点、机理及应用方面的进展作了综
4)  posttranscriptional gene silencing
转录后基因沉默
5)  post-transcriptional gene silencing (PTGS)
转录后基因沉默
6)  post-transcriptional gene silencing
转录后水平的基因沉默
1.
RNAi-post-transcriptional gene silencing;
RNA干扰-转录后水平的基因沉默
补充资料:转录基因
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性质:又称转录基因。系指一种正被转录的基因。核糖核酸聚合酶(RNA聚合酶)要以完整的双链脱氧核糖核酸(DNA)为模板,所以在转录时基因所在的DNA区段双链结构局部地被解开,有关基因转录后,DNA仍然保持双链结构,而已合成的RNA(或mRNA)链即随之离开DNA链。

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