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Gene silencing: Cosuppression at a distance [PDF]

open access: bronzeCurrent Biology, 1997
When a plant carries a transgenic copy of an endogenous gene, both genes may be silenced. This 'cosuppression' can occur not only within individual cells, but also in distant cells through an agent that apparently moves through the plant's phloem.
David Smyth
openalex   +4 more sources

Gene silencing in worms and fungi [PDF]

open access: bronzeNature, 2000
The introduction into cells of foreign nucleic acid molecules can induce sequence-specific gene silencing in some organisms. Here we show that two distantly related organisms, the nematode Caenorhabditis elegans and the fungus Neurospora crassa, which have quite different mechanisms of gene silencing, both use a similar protein to control the process ...
Caterina Catalanotto   +3 more
openalex   +5 more sources

Prior Biological Knowledge Improves Genomic Prediction of Growth-Related Traits in Arabidopsis thaliana

open access: yesFrontiers in Genetics, 2021
Prediction of growth-related complex traits is highly important for crop breeding. Photosynthesis efficiency and biomass are direct indicators of overall plant performance and therefore even minor improvements in these traits can result in significant ...
Muhammad Farooq   +9 more
doaj   +1 more source

Silence of the genes [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
The genomes of many species, including man, have been laid bare with hundreds of known and thousands of unknown genes. A major challenge in present day biology is to decipher the molecular function of the unknown genes. Gene knockout by homologous recombination has proven to be very useful but is laborious and expensive.
Inder M. Verma, Amiel Yanai, Oded Singer
openaire   +3 more sources

Comprehensive Mechanism of Gene Silencing and Its Role in Plant Growth and Development

open access: yesFrontiers in Plant Science, 2021
Gene silencing is a negative feedback mechanism that regulates gene expression to define cell fate and also regulates metabolism and gene expression throughout the life of an organism.
Ahmed H. El-Sappah   +22 more
doaj   +1 more source

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

open access: yesNon-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   +5 more
doaj   +1 more source

Gene Activation and Gene Silencing [PDF]

open access: yesPlant Physiology, 2001
Twenty-five years ago the field of eukaryotic gene regulation was in its infancy. Paradigms driving experiments came primarily from work with prokaryotes and the phage that infected them (12). These paradigms, pioneered by Jacob and Monod, were that genes contained promoter sequences to which ...
Hervé Vaucheret, Vicki L. Chandler
openaire   +3 more sources

Dynamic spreading of chromatin-mediated gene silencing and reactivation between neighboring genes in single cells

open access: yeseLife, 2022
In mammalian cells genes that are in close proximity can be transcriptionally coupled: silencing or activating one gene can affect its neighbors. Understanding these dynamics is important for natural processes, such as heterochromatin spreading during ...
Sarah Lensch   +7 more
doaj   +1 more source

Pygmy MicroRNA: Surveillance Cops in Therapy Kingdom

open access: yesMolecular Medicine, 2016
MicroRNAs (miRNAs) are well preserved in every animal. These pygmy-sized (21–23 nt) noncoding RNAs scattered in the genome are responsible for micromanaging versatile gene regulation.
Utpal Bhadra   +3 more
doaj   +1 more source

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