Advances in deciphering salt tolerance mechanism in maize  

作　　者：Yibo Cao Xueyan Zhou Huifang Song Ming Zhang Caifu Jiang 

机构地区：[1]Key Laboratory of Forest Silviculture and Conservation of the Ministry of Education,College of Forestry,Beijing Forestry University,Beijing 100083,China [2]State Key Laboratory of Plant Environmental Resilience,College of Biological Sciences,China Agricultural University,Beijing 100094,China

出　　处：《The Crop Journal》2023年第4期1001-1010,共10页作物学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(32101555,32001447,U2106229);China Postdoctoral Science Foundation(2021T140060,2020M670537)。

摘　　要：Maize(Zea mays L.)is a global cereal crop whose demand is projected to double by 2050.Along with worsening of farmland salinization,salt stress has become a major environmental threat to the sustainability of maize production worldwide.Accordingly,there is an urgent need to decipher salt-tolerant mechanisms and facilitate the breeding of salt-tolerant maize.As salt tolerance is a complex trait regulated by multiple genes,and maize germplasm varies widely in salt tolerance,efforts have been devoted to the identification and application of quantitative-trait loci(QTL)for salt tolerance.QTL associated with ion regulation,osmotic tolerance,and other aspects of salt tolerance have been discovered using genomewide association studies(GWAS),linkage mapping,and omics-based approaches.This review highlights recent advances in the molecular-level understanding of salt stress response in maize,in particular in(a)the discovery of salt-tolerance QTL,(b)the mechanisms of salt tolerance,(c)the development of salttolerant maize cultivars,and(d)current challenges and future prospects.

关 键 词：MAIZE Salt tolerance QTL Ion toxicity Osmotic stress Natural variation Na+transporter 

分 类 号：S513[农业科学—作物学]