Revisiting the molecular mechanisms and adaptive strategies associated with drought stress tolerance in common wheat (Triticum aestivum L.)
Nadeem Bhanbhro,
Hong-Jin Wang,
Hao Yang,
Xiao-Jing Xu,
Ali Murad Jakhar,
Abdullah shalmani,
Rui-Xiang Zhang,
Qadir Bakhsh,
Ghulam Akbar,
Muhammad Iqbal Jakhro,
Yaseen Khan,
Kun-Ming Chen
Affiliations
Nadeem Bhanbhro
National Key Laboratory of Crop Improvement for Stress Tolerance and Production, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
Hong-Jin Wang
National Key Laboratory of Crop Improvement for Stress Tolerance and Production, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
Hao Yang
National Key Laboratory of Crop Improvement for Stress Tolerance and Production, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
Xiao-Jing Xu
National Key Laboratory of Crop Improvement for Stress Tolerance and Production, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
Ali Murad Jakhar
School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang Sichuan, China. 621010; Institute of Plant Sciences, University of Sindh, Jamshoro, Pakistan
Abdullah shalmani
National Key Laboratory of Crop Improvement for Stress Tolerance and Production, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
Rui-Xiang Zhang
National Key Laboratory of Crop Improvement for Stress Tolerance and Production, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
Qadir Bakhsh
Institute of Plant Sciences, University of Sindh, Jamshoro, Pakistan
Ghulam Akbar
Institute of Plant Sciences, University of Sindh, Jamshoro, Pakistan
Muhammad Iqbal Jakhro
College of Natural Resource and Environment, Northwest A&F University, Yangling 712100, Shaanxi, China
Yaseen Khan
College of Natural Resource and Environment, Northwest A&F University, Yangling 712100, Shaanxi, China
Kun-Ming Chen
National Key Laboratory of Crop Improvement for Stress Tolerance and Production, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China; Author for correspondence: Tel: +86-29-87031358
Drought is a misfortune for crops. Wheat is a staple crop and its sustainability and adequate supply are vital to food security around the world. The development of drought-tolerant cultivars in wheat is a major challenge to breeders, therefore there is dire need of time to determine the genetic components of drought tolerance in wheat crop. To overcome intense drought stress, wheat plants undergo certain morphological and physiological changes and develop certain genetically adaptive mechanisms. Since wheat is an allotriploid with three sub-genomes, its adaptability molecular mechanisms to drought, particularly needs scientific attention. Here, we systematically and comprehensively reviewed the causes of wheat drought tolerance and the consequences for wheat physiology and genetics. The quantitative trait loci (QTL), which be function on the control of wheat drought tolerance, were comprehensively summarized by a meta-analysis and total 75 meta-QTLs (MQTLs) were identified. In addition, we summarized the genes tightly involved in wheat drought tolerance, and several important genes were selected to elucidate signaling networks related to the wheat drought tolerance. This review is integral to growing suitable strains in the worldwide arid regions to improve wheat yields under recent global climate change scenarios.
