NDLI: miR168 targets Argonaute1A mediated miRNAs regulation pathways in response to potassium deficiency stress in tomato

Content Provider	Springer Nature : BioMed Central
Author	Liu, Xin Tan, Chunchang Cheng, Xin Zhao, Xiaoming Li, Tianlai Jiang, Jing
Abstract	Background Potassium (K+) is an essential ion for most plants, as it is involved in the regulation of growth and development. K+ homeostasis in plant cells has evolved to facilitate plant adaptation to K+-deficiency stress. Argonaute1 (AGO1) is regulated by miR168 to modulate the small RNA regulatory pathway by RNA silencing complex (RISC) in tomatoes. However, the role of miR168-mediated regulation of AGO1 in the context of K+ deficiency stress in tomatoes has not been elucidated yet. Results SlmiR168 and its target gene SlAGO1A were differentially expressed among low-K+-tolerant JZ34 and low-K+-sensitive JZ18 tomato plants. Transgenic tomato plants constitutively expressing pri-SlmiR168a showed stronger root system growth, better leaves development, and higher K+ contents in roots under K+-deficiency stress than those of the transgenic tomato lines expressing rSlAGO1A (SlmiR168-resistant) and the wild type (WT). Deep sequencing analysis showed that 62 known microRNAs (miRNAs) were up-regulated in 35S:rSlAGO1 compared with WT tomatoes. The same miRNAs were down-regulated in 35S:SlmiR168a compared with WT plants. The integrated analysis found 12 miRNA/mRNA pairs from the 62 miRNAs, including the root growth and cytokinin (CTK)/abscisic acid (ABA) pathways. Conclusions The regulation mediated by SlmiR168 of SlAGO1A contributes to the plant development under low-K+ stress. Moreover, this regulation mechanism may influence downstream miRNA pathways in response to low-K+ stress through the CTK/ABA and root growth modulation pathways.
Related Links	https://bmcplantbiol.biomedcentral.com/counter/pdf/10.1186/s12870-020-02660-5.pdf
Ending Page	17
Page Count	17
Starting Page	1
File Format	HTM / HTML
ISSN	14712229
DOI	10.1186/s12870-020-02660-5
Journal	BMC Plant Biology
Issue Number	1
Volume Number	20
Language	English
Publisher	BioMed Central
Publisher Date	2020-10-19
Access Restriction	Open
Subject Keyword	Plant Sciences Agriculture Tree Biology miR168 Argonaute1 microRNA Potassium deficiency stress Root Target genes
Content Type	Text
Resource Type	Article
Subject	Plant Science
Journal Impact Factor	4.3/2023
5-Year Journal Impact Factor	5.2/2023

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Correction to: miR168 targets Argonaute1A mediated miRNAs regulation pathways in response to potassium deficiency stress in tomato

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