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Genome-Wide Analysis of the Amino Acid Permeases Gene Family in Wheat and TaAAP1 Enhanced Salt Tolerance by Accumulating Ethylene

文献类型： 外文期刊

作者： Wang, Kai 1 ; Zhai, Mingjuan 2 ; Cui, Dezhou 1 ; Han, Ran 1 ; Wang, Xiaolu 1 ; Xu, Wenjing 1 ; Qi, Guang 1 ; Zeng, Xiaoxue 1 ; Zhuang, Yamei 1 ; Liu, Cheng 1 ;

作者机构： 1.Shandong Technol Innovat Ctr Wheat, Crop Res Inst, Shandong Acad Agr Sci, Natl Engn Res Ctr Wheat & Maize, Jinan 252100, Peoples R China

2.Chinese Acad Agr Sci, Biotechnol Res Inst, Beijing 100081, Peoples R China

关键词： amino acid permeases; gene family; salt stress; ethylene; Triticum aestivum

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 18 期

页码：

收录情况： SCI

摘要： Amino acid permeases (AAPs) are proteins of the integral membrane that play important roles in plant growth, development, and responses to various stresses. The molecular functions of several AAPs were characterized in Arabidopsis and rice, but there is still limited information on wheat. Here, we identified 51 AAP genes (TaAAPs) in the wheat genome, classified into six groups based on phylogenetic and protein structures. The chromosome location and gene duplication analysis showed that gene duplication events played a crucial role in the expansion of the TaAAPs gene family. Collinearity relationship analysis revealed several orthologous AAPs between wheat and other species. Moreover, cis-element analysis of promoter regions and transcriptome data suggested that the TaAAPs can respond to salt stress. A TaAAP1 gene was selected and transformed in wheat. Overexpressing TaAAP1 enhanced salt tolerance by increasing the expression of ethylene synthesis genes (TaACS6/TaACS7/TaACS8) and accumulating more ethylene. The present study provides an overview of the AAP family in the wheat genome as well as information on systematics, phylogenetics, and gene duplication, and shows that overexpressing TaAAP1 enhances salt tolerance by regulating ethylene production. These results serve as a theoretical foundation for further functional studies on TaAAPs in the future.

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