Results 21 to 30 of about 2,976,192 (192)

Global Analysis of RNA-Dependent RNA Polymerase-Dependent Small RNAs Reveals New Substrates and Functions for These Proteins and SGS3 in Arabidopsis

Non-Coding RNA, 2021
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, Nathan D. Berkowitz, Matthew R. Willmann, Xiang Yu, Eric Lyons, Brian D. Gregory   +5 more
doaj   +1 more source

Endogenous Targets of Transcriptional Gene Silencing in Arabidopsis [PDF]

The Plant Cell, 2000
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., Amadeo, P., Afsar, K., Fransz, P.F., Mittelsten Scheid, O., Paszkowski, J.   +5 more
openaire   +5 more sources

Transcriptional Silencing of Geminiviral Promoter-Driven Transgenes Following Homologous Virus Infection

Molecular Plant-Microbe Interactions, 2003
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, Ian Dry, John Randles, Ali Rezaian   +3 more
doaj   +1 more source

RNA interference-mediated co-transcriptional gene silencing in fission yeast [PDF]

, 2012
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
core   +1 more source

Epigenetic silencing in transgenic plants

Frontiers in Plant Science, 2015
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, Pushpanathan eAnunanthini, Sathishkumar eRamalingam   +2 more
doaj   +1 more source

Transcriptional gene silencing mutants in "Arabidopsis thaliana" and their impact on nuclear architecture and heterochromatin organization [PDF]

, 2004
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
core   +1 more source

Transcriptional and posttranscriptional gene silencing are mechanistically related [PDF]

Current Biology, 2001
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., Vijn, I., Rebocho, A., van Blokland, R., Roelofs, D., Mol, J.N.M., Kooter, J.M.   +6 more
openaire   +5 more sources

Internuclear gene silencing in Phytophthora infestans is established through chromatin remodelling [PDF]

, 2008
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., Appiah, A.A., Shepherd, S.J., Walker, C.A., Grenville-Briggs, L., Govers, F., van West, P., West, P., van, Gow, N.A.R.   +8 more
core   +1 more source

The Whys and Wherefores of Transitivity in Plants

Frontiers in Plant Science, 2020
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, Peter M. Waterhouse   +1 more
doaj   +1 more source

The RNA Polymerase II-associated factor 1 complex represses small-RNA-mediated heterochromatin formation and gene silencing [PDF]

, 2015
RNAi interference (RNAi) is a highly conserved regulatory mechanism employed by almost all Eukaryotes. With RNAi organisms can modulate the expression of endogenous genes and protect the integrity and identity of their genomes.
Kowalik, Katarzyna Maria
core   +1 more source