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Genome-wide identification of genes encoding SWI/SNF components in soybean and the functional characterization of GmLFR1 in drought-stressed plants

文献类型： 外文期刊

作者： Chen, Qiang 1 ; Shi, Xiaolei 2 ; Ai, Lijuan 1 ; Tian, Xuan 1 ; Zhang, Hongwei 1 ; Tian, Jiawang 1 ; Wang, Qianying 1 ; Zhang, Mengchen 2 ; Cui, Sujuan 1 ; Yang, Chunyan 2 ; Zhao, Hongtao 1 ;

作者机构： 1.Hebei Normal Univ, Coll Life Sci, Hebei Res Ctr Basic Discipline Cell Biol, Hebei Collaborat Innovat Ctr Cell Signaling,Hebei, Shijiazhuang, Hebei, Peoples R China

2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Natl Soybean Improvement Ctr, Shijiazhuang Sub Ctr,Huang Huai Hai Key Lab Biol &, Shijiazhuang, Hebei, Peoples R China

关键词： soybean; SWI; SNF components; GmLFR1; transgenic hairy root; drought stress

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.6； 五年影响因子：6.8 ）

ISSN： 1664-462X

年卷期： 2023 年 14 卷

页码：

收录情况： SCI

摘要： ATP-dependent SWI/SNF chromatin remodeling complexes (CRCs) are evolutionarily conserved multi-component machines that regulate transcription, replication, and genome stability in eukaryotes. SWI/SNF components play pivotal roles in development and various stress responses in plants. However, the compositions and biological functions of SWI/SNF complex subunits remain poorly understood in soybean. In this study, we used bioinformatics to identify 39 genes encoding SWI/SNF subunit distributed on the 19 chromosomes of soybean. The promoter regions of the genes were enriched with several cis-regulatory elements that are responsive to various hormones and stresses. Digital expression profiling and qRT-PCR revealed that most of the SWI/SNF subunit genes were expressed in multiple tissues of soybean and were sensitive to drought stress. Phenotypical, physiological, and molecular genetic analyses revealed that GmLFR1 (Leaf and Flower-Related1) plays a negative role in drought tolerance in soybean and Arabidopsis thaliana. Together, our findings characterize putative components of soybean SWI/SNF complex and indicate possible roles for GmLFR1 in plants under drought stress. This study offers a foundation for comprehensive analyses of soybean SWI/SNF subunit and provides mechanistic insight into the epigenetic regulation of drought tolerance in soybean.

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