Viroid replication generates dsRNA intermediates, which are processed by Dicer into 21- to 25-nucleotide siRNAs. These siRNAs are then incorporated into siRNA – ribonuclease complexes (RISC). If the ...

This story is part of a larger series on viroids and virusoids, small infectious RNAs. You may read the others on Forbes or www.williamhaseltine.com. Transcriptomics refers to the analysis of all the ...

Viroids are closed circles of ribonucleic acid (RNA) that replicate at a very low level using host cell enzymes, since they do not usually encode proteins. The existence of over ten thousand viroids, ...

Potato spindle tuber viroid (PSTVd) has a circular non-coding RNA genome of 359 nucleotides that replicates and spreads systemically in host plants. Consequently, all functions needed to establish a ...