Opportunities for Improving Waterlogging Tolerance in Cereal Crops—Physiological Traits and Genetic Mechanisms

Waterlogging occurs when soil is saturated with water, leading to anaerobic conditions in the root zone of plants. Climate change is increasing the frequency of waterlogging events, resulting in considerable crop losses. Plants respond to waterlogging stress by adventitious root growth, aerenchyma f...

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Main Authors: Cen Tong, Camilla Beate Hill, Gaofeng Zhou, Xiao-Qi Zhang, Yong Jia, Chengdao Li
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Plants
Subjects:
Online Access:https://www.mdpi.com/2223-7747/10/8/1560
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author Cen Tong
Camilla Beate Hill
Gaofeng Zhou
Xiao-Qi Zhang
Yong Jia
Chengdao Li
author_facet Cen Tong
Camilla Beate Hill
Gaofeng Zhou
Xiao-Qi Zhang
Yong Jia
Chengdao Li
author_sort Cen Tong
collection DOAJ
description Waterlogging occurs when soil is saturated with water, leading to anaerobic conditions in the root zone of plants. Climate change is increasing the frequency of waterlogging events, resulting in considerable crop losses. Plants respond to waterlogging stress by adventitious root growth, aerenchyma formation, energy metabolism, and phytohormone signalling. Genotypes differ in biomass reduction, photosynthesis rate, adventitious roots development, and aerenchyma formation in response to waterlogging. We reviewed the detrimental effects of waterlogging on physiological and genetic mechanisms in four major cereal crops (rice, maize, wheat, and barley). The review covers current knowledge on waterlogging tolerance mechanism, genes, and quantitative trait loci (QTL) associated with waterlogging tolerance-related traits, the conventional and modern breeding methods used in developing waterlogging tolerant germplasm. Lastly, we describe candidate genes controlling waterlogging tolerance identified in model plants <i>Arabidopsis</i> and rice to identify homologous genes in the less waterlogging-tolerant maize, wheat, and barley.
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spelling doaj.art-fe7ca0589ed84747b5170544e2eac7c52023-11-22T09:18:08ZengMDPI AGPlants2223-77472021-07-01108156010.3390/plants10081560Opportunities for Improving Waterlogging Tolerance in Cereal Crops—Physiological Traits and Genetic MechanismsCen Tong0Camilla Beate Hill1Gaofeng Zhou2Xiao-Qi Zhang3Yong Jia4Chengdao Li5Western Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, AustraliaWestern Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, AustraliaWestern Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, AustraliaWestern Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, AustraliaWestern Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, AustraliaWestern Crop Genetic Alliance, College of Science, Health, Engineering and Education, Murdoch University, 90 South Street, Murdoch, WA 6150, AustraliaWaterlogging occurs when soil is saturated with water, leading to anaerobic conditions in the root zone of plants. Climate change is increasing the frequency of waterlogging events, resulting in considerable crop losses. Plants respond to waterlogging stress by adventitious root growth, aerenchyma formation, energy metabolism, and phytohormone signalling. Genotypes differ in biomass reduction, photosynthesis rate, adventitious roots development, and aerenchyma formation in response to waterlogging. We reviewed the detrimental effects of waterlogging on physiological and genetic mechanisms in four major cereal crops (rice, maize, wheat, and barley). The review covers current knowledge on waterlogging tolerance mechanism, genes, and quantitative trait loci (QTL) associated with waterlogging tolerance-related traits, the conventional and modern breeding methods used in developing waterlogging tolerant germplasm. Lastly, we describe candidate genes controlling waterlogging tolerance identified in model plants <i>Arabidopsis</i> and rice to identify homologous genes in the less waterlogging-tolerant maize, wheat, and barley.https://www.mdpi.com/2223-7747/10/8/1560waterlogging tolerance mechanism<i>Arabidopsis</i>ricemaizewheatbarley
spellingShingle Cen Tong
Camilla Beate Hill
Gaofeng Zhou
Xiao-Qi Zhang
Yong Jia
Chengdao Li
Opportunities for Improving Waterlogging Tolerance in Cereal Crops—Physiological Traits and Genetic Mechanisms
Plants
waterlogging tolerance mechanism
<i>Arabidopsis</i>
rice
maize
wheat
barley
title Opportunities for Improving Waterlogging Tolerance in Cereal Crops—Physiological Traits and Genetic Mechanisms
title_full Opportunities for Improving Waterlogging Tolerance in Cereal Crops—Physiological Traits and Genetic Mechanisms
title_fullStr Opportunities for Improving Waterlogging Tolerance in Cereal Crops—Physiological Traits and Genetic Mechanisms
title_full_unstemmed Opportunities for Improving Waterlogging Tolerance in Cereal Crops—Physiological Traits and Genetic Mechanisms
title_short Opportunities for Improving Waterlogging Tolerance in Cereal Crops—Physiological Traits and Genetic Mechanisms
title_sort opportunities for improving waterlogging tolerance in cereal crops physiological traits and genetic mechanisms
topic waterlogging tolerance mechanism
<i>Arabidopsis</i>
rice
maize
wheat
barley
url https://www.mdpi.com/2223-7747/10/8/1560
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AT gaofengzhou opportunitiesforimprovingwaterloggingtoleranceincerealcropsphysiologicaltraitsandgeneticmechanisms
AT xiaoqizhang opportunitiesforimprovingwaterloggingtoleranceincerealcropsphysiologicaltraitsandgeneticmechanisms
AT yongjia opportunitiesforimprovingwaterloggingtoleranceincerealcropsphysiologicaltraitsandgeneticmechanisms
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