MicroRNA biogenesis in plant

MicroRNAs (miRNAs), a type of endogenous non-coding small RNA, with a length of 20 to 24 nt, represses their target gene expression post-transcriptionally. There are a growing number of studies have discovered that miRNAs are found in animals and plants. Plant miRNAs are involved in growth and development, and they play an important role in physiological and biochemical regulation. This review mainly focuses on components of different miRNA processing pathways and how miRNA effectors inhibit the expression of target genes in plants. We discuss not only the various pathways affecting miRNA biogenesis, but also the different forms of miRNA effector pathways. Previous studies found that there have been some primary advances in the formation of miRNAs, we hope to provide a comprehensive introduction to the biogenesis of plant miRNAs.