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Characteristics of post‐transcriptional gene silencing [PDF]
A number of gene silencing phenomena that inactivate genes at the post-transcriptional level have been identified. Due to its potential for studying gene function, post-transcriptional gene silencing (PTGS) has become an intense area of research. In this review we describe the different means of inducing PTGS and discuss the possible biological roles ...
A. Chicas, MACINO, Giuseppe
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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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Transgene-induced gene silencing is not affected by a change in ploidy level. [PDF]
BACKGROUND: Whole genome duplication, which results in polyploidy, is a common feature of plant populations and a recurring event in the evolution of flowering plants.
Daniela Pignatta +4 more
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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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RNA silencing pathways control eukaryotic gene expression transcriptionally or posttranscriptionally in a sequence-specific manner. In RNA silencing, the production of double-stranded RNA (dsRNA) gives rise to various classes of 20–24 nucleotide (nt ...
Xia Hua +5 more
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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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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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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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The Whys and Wherefores of Transitivity in Plants
Transitivity in plants is a mechanism that produces secondary small interfering RNAs (siRNAs) from a transcript targeted by primary small RNAs (sRNAs). It expands the silencing signal to additional sequences of the transcript.
Felipe F. de Felippes +1 more
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