Genes silenced down the generations, thanks to tails on messenger RNA

Nature, Published online: 20 May 2020; doi:10.1038/d41586-020-01417-2

It emerges that strings of nucleotides are added to messenger RNAs that are undergoing silencing in nematode worms. The composition of these nucleotide tails promotes the formation of small RNAs that drive heritable gene regulation.