Impacts of salinity stress on crop plants: improving salt tolerance through genetic and molecular dissection

Frontiers in Plant Science

Plant Science

Subhasis Mondal¹  Shouvik Gorai¹  Sudip Bhattacharya¹  Amrita Kumari¹  Aditya Pratap Singh²  Dinkar Jagannath Gaikwad³  Saptarshi Mondal⁴  David Jespersen⁴  Tuhina Ghosh⁵  Kousik Atta⁶  Arkaprava Roy⁷  Uday Chand Jha⁸  Suryakant Hembram⁹ 

[1] Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India;Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India;School of Agriculture, GIET University, Gunupur, Rayagada, Odisha, India;Centurion University of Technology and Management, Paralakhemundi, Odisha, India;Department of Crop and Soil Sciences, University of Georgia, Griffin, GA, United States;ICAR-Indian Agricultural Research Institute, New Delhi, India;ICAR-Indian Agricultural Research Institute, New Delhi, India;Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal, India;ICAR-Indian Agricultural Research Institute, New Delhi, India;ICAR- National Institute of Biotic Stress Management, Raipur, India;Indian Institute of Pulses Research, Kanpur, India;WBAS (Research), Government of West Bengal, Field Crop Research Station, Burdwan, India;

关键词: salinity stress;    oxidative stress;    antioxidants;    phenomics;    QTL mapping;    GWAS;    genomic selection;   

DOI  :  10.3389/fpls.2023.1241736

 received in 2023-06-17, accepted in 2023-08-14,  发布年份 2023

来源: Frontiers

【 摘 要 】

Improper use of water resources in irrigation that contain a significant amount of salts, faulty agronomic practices such as improper fertilization, climate change etc. are gradually increasing soil salinity of arable lands across the globe. It is one of the major abiotic factors that inhibits overall plant growth through ionic imbalance, osmotic stress, oxidative stress, and reduced nutrient uptake. Plants have evolved with several adaptation strategies at morphological and molecular levels to withstand salinity stress. Among various approaches, harnessing the crop genetic variability across different genepools and developing salinity tolerant crop plants offer the most sustainable way of salt stress mitigation. Some important major genetic determinants controlling salinity tolerance have been uncovered using classical genetic approaches. However, its complex inheritance pattern makes breeding for salinity tolerance challenging. Subsequently, advances in sequence based breeding approaches and functional genomics have greatly assisted in underpinning novel genetic variants controlling salinity tolerance in plants at the whole genome level. This current review aims to shed light on physiological, biochemical, and molecular responses under salt stress, defense mechanisms of plants, underlying genetics of salt tolerance through bi-parental QTL mapping and Genome Wide Association Studies, and implication of Genomic Selection to breed salt tolerant lines.

【 授权许可】

Unknown   
Copyright © 2023 Atta, Mondal, Gorai, Singh, Kumari, Ghosh, Roy, Hembram, Gaikwad, Mondal, Bhattacharya, Jha and Jespersen