Genetic, Epigenetic, Genomic and Microbial Approaches to Enhance Salt Tolerance of Plants: A Comprehensive Review

Saradadevi, G P and Das, D and Mangrauthia, S K and Mohapatra, S and Chikkaputtaiah, C and Roorkiwal, M and Solanki, M and Sundaram, R M and Chirravuri, N N and Sakhare, A S and Kota, S and Varshney, R K and Mohannath, G (2021) Genetic, Epigenetic, Genomic and Microbial Approaches to Enhance Salt Tolerance of Plants: A Comprehensive Review. Biology, 10 (12). pp. 1-31. ISSN 2079-7737

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Abstract

Globally, soil salinity has been on the rise owing to various factors that are both human and environmental. The abiotic stress caused by soil salinity has become one of the most damaging abiotic stresses faced by crop plants, resulting in significant yield losses. Salt stress induces physiological and morphological modifications in plants as a result of significant changes in gene expression patterns and signal transduction cascades. In this comprehensive review, with a major focus on recent advances in the field of plant molecular biology, we discuss several approaches to enhance salinity tolerance in plants comprising various classical and advanced genetic and genetic engineering approaches, genomics and genome editing technologies, and plant growth-promoting rhizobacteria (PGPR)-based approaches. Furthermore, based on recent advances in the field of epigenetics, we propose novel approaches to create and exploit heritable genome-wide epigenetic variation in crop plants to enhance salinity tolerance. Specifically, we describe the concepts and the underlying principles of epigenetic recombinant inbred lines (epiRILs) and other epigenetic variants and methods to generate them. The proposed epigenetic approaches also have the potential to create additional genetic variation by modulating meiotic crossover frequency.

Item Type:	Article
Divisions:	Center of Excellence in Genomics and Systems Biology
CRP:	UNSPECIFIED
Uncontrolled Keywords:	salinity stress, genomics breeding, epiRIL, genome editing, plant growth-promoting rhizobacteria, genetic engineering
Subjects:	Others > Genetic Engineering Others > Genetics and Genomics
Depositing User:	Mr Nagaraju T
Date Deposited:	11 Jun 2025 07:53
Last Modified:	11 Jun 2025 07:53
URI:	http://oar.icrisat.org/id/eprint/13141
Official URL:	https://www.mdpi.com/2079-7737/10/12/1255
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	Authors thank several colleagues from their respective institutes for their critique and help in preparing this manuscript. Authors also thank Ramya and Navin for their help with references.
Links:	Google Scholar

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