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 +1 more
doaj +1 more source
Reconstitution of Heterochromatin-Dependent Transcriptional Gene Silencing [PDF]
Molecular Cell, 2009 Heterochromatin assembly in budding yeast requires the SIR complex, which contains the NAD-dependent deacetylase Sir2 and the Sir3 and Sir4 proteins. Sir3 binds to nucleosomes containing deacetylated histone H4 lysine 16 (H4K16) and, with Sir4, promotes spreading of Sir2 and deacetylation along the chromatin fiber.
Johnson, Aaron +5 more
openaire +2 more sources
Antisense transcription licenses nascent transcripts to mediate transcriptional gene silencing. [PDF]
Genes Dev, 2016 In eukaryotes, antisense transcription can regulate sense transcription by induction of epigenetic modifications. We showed previously that antisense transcription triggers Dicer-independent siRNA (disiRNA) production and disiRNA locus DNA methylation (DLDM) in Neurospora crassa .
Dang Y, Cheng J, Sun X, Zhou Z, Liu Y.
europepmc +4 more sources
The SCFDia2 ubiquitin E3 ligase ubiquitylates Sir4 and functions in transcriptional silencing. [PDF]
PLoS Genetics, 2012 In budding yeast, transcriptional silencing, which is important to regulate gene expression and maintain genome integrity, requires silent information regulator (Sir) proteins.
Rebecca J Burgess +4 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
Splayed : a chromatin remodeler regulating tissue specific gene silencing and developmental timing [PDF]
, 2014 A number of mechanisms that contribute to epigenetic regulation of gene expression have been described in plants. The concert actions of these mechanisms contribute to proper patterning of gene expression within organs and tissues, therefore insuring ...
Fal, Kateryna
core +1 more source
RNA duplexes in transcriptional regulation
Biomolecular Concepts, 2010 Transcriptional regulation by small RNA molecules, including small interfering RNA and microRNA, has emerged as an important gene expression modulator.
Swaminathan Sanjay +3 more
doaj +1 more source
PLoS ONE, 2013 BackgroundBeyond their role in post-transcriptional gene silencing, Dicer and Argonaute, two components of the RNA interference (RNAi) machinery, were shown to be involved in epigenetic regulation of centromeric heterochromatin and transcriptional gene ...
Filippo M Cernilogar +5 more
doaj +1 more source
A Method to Produce vsiRNAs in Plants with Cross-Kingdom Gene Silencing Capacity
Applied Sciences, 2022 Plants have evolved defense mechanisms to suppress viral transcription and replication by transcriptional and post-transcriptional gene silencing mediated by virus-derived small interfering RNAs (vsiRNAs).
Hernán de Jesús Villanueva-Alonzo +11 more
doaj +1 more source
Factors influencing Barley Stripe Mosaic Virus-mediated gene silencing in wheat [PDF]
, 2010 Virus induced gene silencing (VIGS) is a technology that has been used primarily to target the virus genome in infected plants. However, if the virus genome carries inserts derived from the host plant, the system could be employed to target the mRNAs ...
Cakir, Cahid +5 more
core +1 more source