Virus‐Induced Gene Silencing, a Post Transcriptional Gene Silencing Method [PDF]
Virus‐induced gene silencing (VIGS) is one of the reverse genetics tools for analysis of gene function that uses viral vectors carrying a target gene fragment to produce dsRNA which trigger RNA‐mediated gene silencing. There are a number of viruses which have been modified to silence the gene of interest effectively with a sequence‐specific manner ...
Unver, Turgay, Budak, Hikmet
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Silencing of a plant gene by transcriptional interference [PDF]
Integration of foreign DNA into eukaryotic genomes results frequently in a total or partial loss of gene function, caused by the interruption of indispensable structures of the gene itself. Using T-DNA insertions in Arabidopsis we screened for mutants with deregulated chlorophyll precursor accumulation in etiolated seedlings.
Hedtke, Boris, Grimm, Bernhard
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Endogenous Targets of Transcriptional Gene Silencing in Arabidopsis [PDF]
Transcriptional gene silencing (TGS) frequently inactivates foreign genes integrated into plant genomes but very likely also suppresses an unknown subset of chromosomal information. Accordingly, RNA analysis of mutants impaired in silencing should uncover endogenous targets of this epigenetic regulation.
Steimer, A. +5 more
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Promoters isolated from the Tomato leaf curl virus (TLCV) drive both constitutive and tissue-specific expression in transgenic tobacco. Following systemic TLCV infection of plants stably expressing TLCV promoter:GUS transgenes, transgene expression ...
Mark Seemanpillai +3 more
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Internuclear gene silencing in Phytophthora infestans is established through chromatin remodelling [PDF]
In the plant pathogen Phytophthora infestans, nuclear integration of inf1 transgenic DNA sequences results in internuclear gene silencing of inf1. Although silencing is regulated at the transcriptional level, it also affects transcription from other ...
Li, S. +7 more
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Epigenetic silencing in transgenic plants
Epigenetic silencing is a natural phenomenon in which the expression of gene is regulated through modifications of DNA, RNA or histone proteins. It is a mechanism for defending host genomes against the effects of transposable element, viral infection and
Sarma eRajeev Kumar +2 more
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RNA interference-mediated co-transcriptional gene silencing in fission yeast [PDF]
In the last decade or so, RNA interference (RNAi) has gained unanticipated recognition in the fields of RNA biology and gene regulation. It exists in a wide variety of eukaryotic organisms, and various forms of RNAi are involved in diverse biological ...
Woolcock, Katrina Jane
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Transcriptional and posttranscriptional gene silencing are mechanistically related [PDF]
Two distinct gene-silencing phenomena are observed in plants: transcriptional gene silencing (TGS), which involves decreased RNA synthesis because of promoter methylation, and posttranscriptional gene silencing (PTGS), which involves sequence-specific RNA degradation.
Sijen, T. +6 more
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Transcriptional gene silencing mutants in "Arabidopsis thaliana" and their impact on nuclear architecture and heterochromatin organization [PDF]
The epigenetic regulation of gene expression is defined by covalent modifications of DNA and histone tails as well as by chromatin structure and nuclear architecture.
Valeska Probst, Aline
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Enhancement of post-transcriptional gene silencing by grafting [PDF]
We showed previously that grafting transmitted silencing occurred when transgenic ACC oxidase 1 (ACO1) overexpressing tomato plants that also produced siRNAs were grafted onto transgenic stocks that already showed strong silencing. The presence of siRNAs in these overexpressing scions may indicate that silencing, though inefficient, may already occur ...
Yuanhuai, Han, Donald, Grierson
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