Current advances in the molecular regulation of abiotic stress tolerance in sorghum via transcriptomic, proteomic, and metabolomic approaches

Frontiers in Plant Science

Plant Science

Zhiyong Xiong¹  Min Tu²  Yanbin Deng³  Yuesheng Wang³  Canghao Du³  Boju Yu³  Guoli Wang³  Guangxiao Yang³  Guangyuan He³  Yin Li³  Junli Chang³  Mingjie Chen³ 

[1] Laboratory of Forage and Endemic Crop Biology (Inner Mongolia University), Ministry of Education, School of Life Sciences, Hohhot, China;School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China;The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China;

关键词: sorghum;    drought stress;    salt and alkaline stress;    temperature stress;    omics analyses;    gene expression regulation;   

DOI  :  10.3389/fpls.2023.1147328

 received in 2023-01-18, accepted in 2023-04-21,  发布年份 2023

来源: Frontiers

【 摘 要 】

Sorghum (Sorghum bicolor L. Moench), a monocot C4 crop, is an important staple crop for many countries in arid and semi-arid regions worldwide. Because sorghum has outstanding tolerance and adaptability to a variety of abiotic stresses, including drought, salt, and alkaline, and heavy metal stressors, it is valuable research material for better understanding the molecular mechanisms of stress tolerance in crops and for mining new genes for their genetic improvement of abiotic stress tolerance. Here, we compile recent progress achieved using physiological, transcriptome, proteome, and metabolome approaches; discuss the similarities and differences in how sorghum responds to differing stresses; and summarize the candidate genes involved in the process of responding to and regulating abiotic stresses. More importantly, we exemplify the differences between combined stresses and a single stress, emphasizing the necessity to strengthen future studies regarding the molecular responses and mechanisms of combined abiotic stresses, which has greater practical significance for food security. Our review lays a foundation for future functional studies of stress-tolerance-related genes and provides new insights into the molecular breeding of stress-tolerant sorghum genotypes, as well as listing a catalog of candidate genes for improving the stress tolerance for other key monocot crops, such as maize, rice, and sugarcane.

【 授权许可】

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Copyright © 2023 Tu, Du, Yu, Wang, Deng, Wang, Chen, Chang, Yang, He, Xiong and Li