Genome-Wide Analysis of <i>MBF1</i> Family Genes in Five Solanaceous Plants and Functional Analysis of <i>SlER24</i> in Salt Stress

Genome-Wide Analysis of <i>MBF1</i> Family Genes in Five Solanaceous Plants and Functional Analysis of <i>SlER24</i> in Salt Stress

Multiprotein bridging factor 1 (MBF1) is an ancient family of transcription coactivators that play a crucial role in the response of plants to abiotic stress. In this study, we analyzed the genomic data of five Solanaceae plants and identified a total of 21 <i>MBF1</i> genes. The expansi...

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Bibliographic Details
Main Authors: Dongnan Xia, Lulu Guan, Yue Yin, Yixi Wang, Hongyan Shi, Wenyu Li, Dekai Zhang, Ran Song, Tixu Hu, Xiangqiang Zhan
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:International Journal of Molecular Sciences
Subjects:
Solanaceae species
<i>MBF1</i>
gene expression patterns
<i>SlER24</i>
salt stress
Online Access:https://www.mdpi.com/1422-0067/24/18/13965
Description
Summary:Multiprotein bridging factor 1 (MBF1) is an ancient family of transcription coactivators that play a crucial role in the response of plants to abiotic stress. In this study, we analyzed the genomic data of five Solanaceae plants and identified a total of 21 <i>MBF1</i> genes. The expansion of MBF1a and MBF1b subfamilies was attributed to whole-genome duplication (WGD), and the expansion of the MBF1c subfamily occurred through transposed duplication (TRD). Collinearity analysis within Solanaceae species revealed collinearity between members of the MBF1a and MBF1b subfamilies, whereas the MBF1c subfamily showed relative independence. The gene expression of <i>SlER24</i> was induced by sodium chloride (NaCl), polyethylene glycol (PEG), ABA (abscisic acid), and ethrel treatments, with the highest expression observed under NaCl treatment. The overexpression of <i>SlER24</i> significantly enhanced the salt tolerance of tomato, and the functional deficiency of <i>SlER24</i> decreased the tolerance of tomato to salt stress. <i>SlER24</i> enhanced antioxidant enzyme activity to reduce the accumulation of reactive oxygen species (ROS) and alleviated plasma membrane damage under salt stress. <i>SlER24</i> upregulated the expression levels of salt stress-related genes to enhance salt tolerance in tomato. In conclusion, this study provides basic information for the study of the <i>MBF1</i> family of Solanaceae under abiotic stress, as well as a reference for the study of other plants.
ISSN:1661-6596
1422-0067

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