文章基本信息

标题：Ncl Synchronously Regulates Na⁺, K⁺, and Cl⁻ in Soybean and Greatly Increases the Grain Yield in Saline Field Conditions
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作者：Tuyen Duc Do ; Huatao Chen ; Vu Thi Thu Hien 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2016
卷号：6
DOI：10.1038/srep19147
出版社：Springer Nature
摘要：Salt stress inhibits soybean growth and reduces gain yield. Genetic improvement of salt tolerance is essential for sustainable soybean production in saline areas. In this study, we isolated a gene ( Ncl ) that could synchronously regulate the transport and accumulation of Na⁺, K⁺, and Cl⁻ from a Brazilian soybean cultivar FT-Abyara using map-based cloning strategy. Higher expression of the salt tolerance gene Ncl in the root resulted in lower accumulations of Na⁺, K⁺, and Cl⁻ in the shoot under salt stress. Transfer of Ncl with the Agrobacterium -mediated transformation method into a soybean cultivar Kariyutaka significantly enhanced its salt tolerance. Introgression of the tolerance allele into soybean cultivar Jackson, using DNA marker-assisted selection (MAS), produced an improved salt tolerance line. Ncl could increase soybean grain yield by 3.6–5.5 times in saline field conditions. Using Ncl in soybean breeding through gene transfer or MAS would contribute to sustainable soybean production in saline-prone areas.