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022 _a0022-0957
022 _a1460-2431 (Online)
024 8 _ahttps://doi.org/10.1093/jxb/erab124
040 _aMX-TxCIM
041 _aeng
100 0 _aChaonan Li
_917919
245 1 0 _aRecognizing the hidden half in wheat :
_broot system attributes associated with drought tolerance
260 _aOxford (United Kingdom) :
_bOxford University Press,
_c2021.
500 _aPeer review
520 _aImproving 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.
546 _aText in English
650 7 _aDrought tolerance
_2AGROVOC
_91082
650 7 _aGenes
_2AGROVOC
_93563
650 7 _aQuantitative Trait Loci
_2AGROVOC
_91853
650 7 _aRoots
_2AGROVOC
_91755
650 7 _aRoot systems
_2AGROVOC
_911634
650 7 _aWheat
_2AGROVOC
_91310
700 0 _aLong Li
_99678
700 1 _aReynolds, M.P.
_gGlobal Wheat Program
_8INT1511
_9831
700 0 _aJingyi Wang
_94594
700 0 _aXiaoping Chang
_94598
700 0 _aXinguo Mao
_94593
700 0 _aRuilian Jing
_92023
773 0 _tJournal of Experimental Botany
_gv. 72, no. 14, p. 5117-5133
_dOxford (United Kingdom) : Oxford University Press, 2021.
_x0022-0957
_wG444540
942 _cJA
_n0
_2ddc
999 _c64092
_d64084