The phrase "silence spread" is correct and usable in written English.
It can be used to describe a situation where quietness or stillness gradually increases or becomes more pervasive.
Example: "As the sun set over the horizon, a profound silence spread across the valley, enveloping everything in its calm embrace."
Alternatives: "quietness enveloped" or "stillness descended".
Silence spreads and spreads our awareness in places our worldly self could never explore.
Recently, using high-density arrays to profile DNAm as a mark of silencing, spread into autosomal material was examined at a high resolution.
Grafting experiments have shown that both genes are essential for the establishment of long distance silencing spread in A. thaliana, facilitating or enabling the perception of the systemic signal [ 16].
Once the inactivation process is started on one X and silencing spreads over the chromosome, Rnf12 will also become silenced in cis.
We propose that PcG complexes are recruited first on D4Z4 repeats, and then silencing spreads on the region immediately proximal to the repeat array.
While silencing spreads inside a plant grown under HL, all four DCL genes are upregulated enabling higher silencing rates, whereas DCL3 and RDR6 induction in not yet silenced tissues facilitate the rapid perception and amplification of the systemic silencing signal.
Once initiated, a wave of silencing spreads through the entire chromosome and the transcriptionally silent state is stably maintained on the inactive X chromosome by various epigenetic modifications, such as histone modifications and DNA methylation [ 2, 5] and inherited clonally in subsequent cell divisions.
It is notable that the lncRNAs involved in the formation of these silent domains are cis acting, particularly long (over 10 kb) and known to silence genes spread over large genomic loci on single chromosomes.
Since TEs are usually epigenetically silenced [ 30, 31], silencing can spread from TEs to closely linked genes [ 32].
