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Dynamics of miRNA mediated regulation of legume symbiosis

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Title Dynamics of miRNA mediated regulation of legume symbiosis
 
Creator Tiwari, Manish
Pandey, Vimal
Singh, Baljinder
Bhatia, Sabhyata
 
Subject auxin
cytokinin
legume
miRNA
microarray
NGS
rhizobia
symbiosis
 
Description Accepted date: 08 December 2020
Symbiotic nitrogen fixation in legume nodules is important in soils with low nitrogen availability. The initiation and sustainability of symbiosis requires cellular reprogramming that involves the miRNA‐mediated inhibition or activation of specific nodulation genes. The high‐throughput sequencing of small RNA libraries has identified miRNAs and their targets, which are the major players in the post‐transcriptional gene regulation (PTGS) of the different stages of legume‐rhizobia symbiosis ranging from bacterial colonization and organogenesis to symbiotic nitrogen fixation. Here we present an overview of information obtained from the miRNA libraries from nodulating tissues that have been sequenced to date. The functional analysis of miRNAs has revealed roles in phytohormone homeostasis and spatio‐temporal regulation, as well as the mobility of miRNAs and their functions in shoot to root signalling that affects diverse functions, including bacterial entry, meristem division and differentiation, nitrogen fixation and senescence. Furthermore, small RNA fragments of rhizobial origin repress complementary plant mRNAs. We also consider the roles of miRNAs in determinate or indeterminate nodules. Taken together, this overview confirms that miRNAs are master regulators of the legume‐rhizobia symbiosis.
We kindly acknowledge National Institute of Plant Genome Research (NIPGR) and
Department of Biotechnology, Govt. of India (http://www.dbtindia.nic.in). The study was
funded by grant (BT/PR3305/AGR/2/816/2011) from Department of Biotechnology, India.
 
Date 2020-12-29T09:07:12Z
2020-12-29T09:07:12Z
2020
 
Type Article
 
Identifier Plant, Cell & Environment, (In Press)
1365-3040
https://doi.org/10.1111/pce.13983
https://onlinelibrary.wiley.com/doi/10.1111/pce.13983
http://223.31.159.10:8080/jspui/handle/123456789/1139
 
Language en_US
 
Format application/pdf
 
Publisher John Wiley & Sons