Physiology and Molecular Breeding in Sustaining Wheat Grain Setting and Quality under Spring Cold Stress

Spring cold stress (SCS) compromises the reproductive growth of wheat, being a major constraint in achieving high grain yield and quality in winter wheat. To sustain wheat productivity in SCS conditions, breeding cultivars conferring cold tolerance is key. In this review, we examine how grain settin...

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Bibliographic Details
Published in:International journal of molecular sciences 2022-11, Vol.23 (22), p.14099
Main Authors: Su, Hui, Tan, Cheng, Liu, Yonghua, Chen, Xiang, Li, Xinrui, Jones, Ashley, Zhu, Yulei, Song, Youhong
Format: Article
Language:English
Subjects:
Carbohydrate metabolism
Carbohydrates
Climate change
Cold
Cold tolerance
Cold-Shock Response - genetics
Crop yield
Cultivars
DNA Shuffling
Edible Grain - genetics
Enzymes
Genes
Grain
grain set and quality
Infertility
Kinases
Metabolism
Molecular modelling
Morphology
Physiology
Plant Breeding
Pollen
Proteins
QTLs
Quantitative trait loci
Reactive oxygen species
Review
Scavenging
Signal transduction
spikelet development
spring frost
Triticum
Triticum aestivum L
Wheat
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Summary:Spring cold stress (SCS) compromises the reproductive growth of wheat, being a major constraint in achieving high grain yield and quality in winter wheat. To sustain wheat productivity in SCS conditions, breeding cultivars conferring cold tolerance is key. In this review, we examine how grain setting and quality traits are affected by SCS, which may occur at the pre-anthesis stage. We have investigated the physiological and molecular mechanisms involved in floret and spikelet SCS tolerance. It includes the protective enzymes scavenging reactive oxygen species (ROS), hormonal adjustment, and carbohydrate metabolism. Lastly, we explored quantitative trait loci (QTLs) that regulate SCS for identifying candidate genes for breeding. The existing cultivars for SCS tolerance were primarily bred on agronomic and morphophysiological traits and lacked in molecular investigations. Therefore, breeding novel wheat cultivars based on QTLs and associated genes underlying the fundamental resistance mechanism is urgently needed to sustain grain setting and quality under SCS.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms232214099