Drought remains the biggest single threat from climate change to the production of key cereal crops, such as wheat and barley. Cereals also respond in complex ways to drought stress, making improved drought tolerance a challenging trait to achieve. With many cereals recognised as staple food crops due to their nutritional value, more research is required into improving drought tolerance as a means of ensuring the future food security of millions.
Developing drought-resistant cereals reviews the wealth of research which addresses how to overcome this challenge in order to mitigate climate change effects in cereal production. This collection details our understanding of the mechanisms of drought tolerance, as well as the development of techniques for improving resistance, including phenotyping, genome-wide association studies (GWAS) and genome editing.
Part 1 Understanding mechanisms of drought tolerance
1.Physiological traits affecting water use and water use efficiency in cereals in response to drought stress: Thomas R. Sinclair, North Carolina State University, USA; and Michel E. Ghanem, Centre de coopération internationale en recherche agronomique pour le développement (CIRAD), France and Mohammed VI Polytechnic University, Morocco;
2.The role of plant hormones in adaptation to drought stress in cereals: Arnauld A. Thiry, Lancaster Environment Centre, UK; Matthew P. Reynolds, International Maize and Wheat Improvement Center (CIMMYT), Mexico; and William J. Davies and Ian C. Dodd, Lancaster Environment Centre, UK;
3.The role of drought stress-induced proteins in regulating drought resistance in cereals: John Cushman, University of Nevada-Reno, USA;
Part 2 Techniques for improving resistance
4.Identifying and exploiting drought tolerance traits in wild cereals, varieties and landraces: Zvi Peleg, Hebrew University of Jerusalem, Israel;
5.Advances in phenotyping to identify drought-resistance traits in cereal roots: Jack Christopher, University of Queensland, Australia;
6.Advanced genetic techniques to identify and evaluate drought-adaptive loci in cereals: Roberto Tuberosa, University of Bologna, Italy;
7.Identifying and exploiting genes related to root system architecture in improving drought resistance in cereals: Eric Ober, NIAB, UK;
8.Identifying and exploiting photosynthetic genes in improving drought resistance in cereals: Ruilian Jing, Chinese Academy of Agricultural Sciences, China;
9.Genomic selection, gene editing and genetic engineering for drought tolerance in cereals: Rodomiro Ortiz, Swedish University of Agricultural Sciences (SLU), Sweden;
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