The expanding world of small RNAs in plants

Borges, F., Martienssen, R. A. (November 2015) The expanding world of small RNAs in plants. Nat Rev Mol Cell Biol, 16. pp. 727-741. ISSN 1471-0080 (Electronic)1471-0072 (Linking)

Abstract

Plant genomes encode various small RNAs that function in distinct, yet overlapping, genetic and epigenetic silencing pathways. However, the abundance and diversity of small-RNA classes varies among plant species, suggesting coevolution between environmental adaptations and gene-silencing mechanisms. Biogenesis of small RNAs in plants is well understood, but we are just beginning to uncover their intricate regulation and activity. Here, we discuss the biogenesis of plant small RNAs, such as microRNAs, secondary siRNAs and heterochromatic siRNAs, and their diverse cellular and developmental functions, including in reproductive transitions, genomic imprinting and paramutation. We also discuss the diversification of small-RNA-directed silencing pathways through the expansion of RNA-dependent RNA polymerases, DICER proteins and ARGONAUTE proteins.

Item Type: Paper
Subjects: organism description > plant
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > sRNA
CSHL Authors:
Communities: CSHL labs > Martienssen lab
Depositing User: Matt Covey
Date: 4 November 2015
Date Deposited: 09 Nov 2015 16:09
Last Modified: 15 Jul 2021 18:39
PMCID: PMC4948178
Related URLs:
URI: https://repository.cshl.edu/id/eprint/31972

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