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Review
. 2022 Aug 22;23(16):9477.
doi: 10.3390/ijms23169477.

The miR393-Target Module Regulates Plant Development and Responses to Biotic and Abiotic Stresses

Affiliations
Review

The miR393-Target Module Regulates Plant Development and Responses to Biotic and Abiotic Stresses

Jinjin Jiang et al. Int J Mol Sci. .

Abstract

MicroRNAs (miRNAs), a class of endogenous small RNAs, are broadly involved in plant development, morphogenesis and responses to various environmental stresses, through manipulating the cleavage, translational expression, or DNA methylation of target mRNAs. miR393 is a conserved miRNA family present in many plants, which mainly targets genes encoding the transport inhibitor response1 (TIR1)/auxin signaling F-box (AFB) auxin receptors, and thus greatly affects the auxin signal perception, Aux/IAA degradation, and related gene expression. This review introduces the advances made on the miR393/target module regulating plant development and the plant's responses to biotic and abiotic stresses. This module is valuable for genetic manipulation of optimized conditions for crop growth and development and would also be helpful in improving crop yield through molecular breeding.

Keywords: auxin; miR393; plant development; stress response; target gene.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The conserved sequence similarity of miR393 members in different plants. (A) Phylogenetic relationships of pre-miR393s; (B) sequence similarity of mature miR393s. Aly, Arabidopsis lyrata; Ata, Aegilops tauschii; Ath, Arabidopsis thaliana; Bdi, Brachypodium distachyon; Bna, Brassica napus; Cas, Camelina sativa; Cme, Cucumis melo; Csa, Cucumis sativus; Csi, Camellia sinensis; Ghr, Gossypium hirsutum; Gma, Glycine max; Hvu, Hordeum vulgare; Lus, Linum usitatissimum; Mes, Manihot esculenta; Mtr, Medicago truncatula; Osa, Oryza sativa; Rco, Ricinus communis; Sbi, Sorghum bicolor; Stu, Solanum tuberosum; Zma, Zea mays; Pvi, Panicum virgatum.
Figure 2
Figure 2
Phylogeny and structures of functionally characterized TIR1/AFBs in plants. Ah, Arachis hypogaea; At, Arabidopsis thaliana; As, Agrostis stolonifera; Cm, Cucumis melo; Cs: Cucumis sativus; Dl: Dimocarpus longan; Gm, Glycine max; Hv, Hordeum vulgare; Md, Malus × domestica; Os, Oryza sativa; Pv, Panicum virgatum; Zm, Zea mays.

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