TY  - JA
AU  - Chaonan Li
AU  - Long Li
AU  - Reynolds,M.P.
AU  - Jingyi Wang
AU  - Xiaoping Chang
AU  - Xinguo Mao
AU  - Ruilian Jing
TI  - Recognizing the hidden half in wheat : : root system attributes associated with drought tolerance
SN  - 0022-0957
PY  - 2021///
CY  - Oxford (United Kingdom)
PB  - Oxford University Press
KW  - Drought tolerance
KW  - AGROVOC
KW  - Genes
KW  - Quantitative Trait Loci
KW  - Roots
KW  - Root systems
KW  - Wheat
N1  - Peer review
N2  - Improving drought tolerance in wheat is crucial for maintaining productivity and food security. Roots are responsible for the uptake of water from soil, and a number of root traits are associated with drought tolerance. Studies have revealed many quantitative trait loci and genes controlling root development in plants. However, the genetic dissection of root traits in response to drought in wheat is still unclear. Here, we review crop root traits associated with drought, key genes governing root development in plants, and quantitative trait loci and genes regulating root system architecture under water-limited conditions in wheat. Deep roots, optimal root length density and xylem diameter, and increased root surface area are traits contributing to drought tolerance. In view of the diverse environments in which wheat is grown, the balance among root and shoot traits, as well as individual and population performance, are discussed. The known functions of key genes provide information for the genetic dissection of root development of wheat in a wide range of conditions, and will be beneficial for molecular marker development, marker-assisted selection, and genetic improvement in breeding for drought tolerance
T2  - Journal of Experimental Botany
DO  - https://doi.org/10.1093/jxb/erab124
ER  -