The Transcription Factor ZmNAC89 Gene Is Involved in Salt Tolerance in Maize (Zea mays L.)
文献类型： 外文期刊
作者： Hu, Yingying 1 ; Li, Chunxiang 1 ; Zhou, Runyu 1 ; Song, Yongfeng 1 ; Lv, Zhichao 1 ; Wang, Qi 1 ; Dong, Xiaojie 1 ; Liu, Shan 1 ; Feng, Chenchen 1 ; Zhou, Yu 1 ; Zeng, Xing 1 ; Zhang, Lin 1 ; Wang, Zhenhua 1 ; Di, Hong 1 ;
作者机构： 1.Northeast Agr Univ, Engn Technol Res Ctr Maize Germplasm Resources Inn, Key Lab Germplasm Enhancement Physiol & Ecol Food, Harbin 150030, Peoples R China
2.Heilongjiang Acad Agr Sci, Crop Resources Inst, Harbin 150086, Peoples R China
关键词： maize; saline-alkaline tolerance; ZmNAC89 gene; RNA-sequencing analysis
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）
ISSN： 1661-6596
年卷期： 2023 年 24 卷 20 期
页码：
收录情况： SCI
摘要： The NAC gene family has transcription factors specific to plants, which are involved in development and stress response and adaptation. In this study, ZmNAC89, an NAC gene in maize that plays a role in saline-alkaline tolerance, was isolated and characterized. ZmNAC89 was localized in the nucleus and had transcriptional activation activity during in vitro experiments. The expression of ZmNAC89 was strongly upregulated under saline-alkaline, drought and ABA treatments. Overexpression of the ZmNAC89 gene in transgenic Arabidopsis and maize enhanced salt tolerance at the seedling stage. Differentially expressed genes (DEGs) were then confirmed via RNA-sequencing analysis with the transgenic maize line. GO analyses showed that oxidation-reduction process-regulated genes were involved in ZmNAC89-mediated salt-alkaline stress. ZmNAC89 may regulate maize saline-alkali tolerance through the REDOX pathway and ABA signal transduction pathway. From 140 inbred maize lines, 20 haplotypes and 16 SNPs were found in the coding region of the ZmNAC89 gene, including the excellent haplotype HAP20. These results contribute to a better understanding of the response mechanism of maize to salt-alkali stress and marker-assisted selection during maize breeding.
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