Table 1. Classes of non-coding RNAs discussed in this paper.

Short name of RNA classes	Full name of RNA classes	Notes	References
ncRNAs	Non-coding RNAs	Generic term for non-protein coding RNAs	[22], [42], [66]
sncRNAs	Small non-coding RNAs	Generic term for small non-protein coding RNAs	[22], [42]
piRNAs	Piwi interacting RNAs	Involved in retrotransposon silencing	[67]
miRNAs	microRNAs	21-24 nucleotides in length and involved in regulation of gene expression	[68]
snoRNAs	Small nucleolar RNAs	Guide chemical modifications of other non-coding RNAs	[52], [69]
snRNAs	Small nuclear RNAs	Involved in various processes such as RNA splicing	[69]
siRNAs	Small interfering RNAs	Double stranded RNAs that act in various silencing pathways	[70]
tsRNAs	tRNA-derived small RNAs	Small RNAs derived from tRNAs	[37]