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Volume 16
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10.3390/genes16070785
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Genome-Wide Identification of the ABF/AREB/ABI5 Gene Family in Ziziphus jujuba cv. Dongzao and Analysis of Its Response to Drought Stress

by
Zhikai Zhang
1,
Xiaoming Liu
1,
Yu Wang
2,
Jun Zhou
1,3,
Zhongwu Wan
4,5,
Xin Zhang
1,3,
Jing Wang
1,3,
Binbin Si
1,3,
Lan Luo
1 and
Wendi Xu
1,3,*
1
School of Biological Science and Engineering, North Minzu University, Yinchuan 750021, China
2
Ningxia Lingwu Horticultural Farm, Lingwu 750400, China
3
Innovation Team for Genetic Improvement of Economic Forest, North Minzu University, Yinchuan 750021, China
4
Daquan Forestry Centre of Lingwu City, Lingwu 750400, China
5
Lingwu Baijitan Natural Resources Conservation Bureau, Lingwu 750400, China
*
Author to whom correspondence should be addressed.
Genes 2025, 16(7), 785; https://doi.org/10.3390/genes16070785
Submission received: 9 June 2025 / Revised: 23 June 2025 / Accepted: 27 June 2025 / Published: 30 June 2025
(This article belongs to the Section Plant Genetics and Genomics)
Versions Notes

Abstract

Abscisic acid (ABA), a pivotal phytohormone regulating plant growth and stress adaptation, orchestrates abiotic stress responses through the ABA-responsive element-binding factors ABF/AREB/ABI5. Nevertheless, the functional characterization of ABF/AREB/ABI5 homologs in Z. jujuba cv. Dongzao remains unexplored. In this study, we identified seven ZjABF genes distributed across five chromosomes. Domain analyses revealed high structural conservation, particularly within the basic leucine zipper (bZIP) DNA-binding domain. Subcellular localization confirmed nuclear targeting of all seven ZjABF proteins. Phylogenetic classification resolved these factors into three clades (A–C). Cis-regulatory element profiling implicated the involvement of the ZjABFs in hormone signaling, abiotic stress transduction, and photoregulatory pathways. Synteny analyses identified three segmental duplication events within the gene family. Tissue-specific expression patterns indicated critical roles for ZjABF2 and ZjABF3 in fruit maturation, and most of the ABF/AREB/ABI5 genes were highly expressed in the root. Under drought stress, four ZjABF genes exhibited differential expression, with ZjABF2 demonstrating pronounced sensitivity. These findings establish a molecular framework for understanding ZjABF-mediated abiotic stress responses in non-model woody perennials.
Keywords: ABF/AREB/ABI5 gene; genome-wide analysis; abscisic acid; drought stress; gene expression; Ziziphus jujuba cv. Dongzao ABF/AREB/ABI5 gene; genome-wide analysis; abscisic acid; drought stress; gene expression; Ziziphus jujuba cv. Dongzao

Share and Cite

MDPI and ACS Style

Zhang, Z.; Liu, X.; Wang, Y.; Zhou, J.; Wan, Z.; Zhang, X.; Wang, J.; Si, B.; Luo, L.; Xu, W. Genome-Wide Identification of the ABF/AREB/ABI5 Gene Family in Ziziphus jujuba cv. Dongzao and Analysis of Its Response to Drought Stress. Genes 2025, 16, 785. https://doi.org/10.3390/genes16070785

AMA Style

Zhang Z, Liu X, Wang Y, Zhou J, Wan Z, Zhang X, Wang J, Si B, Luo L, Xu W. Genome-Wide Identification of the ABF/AREB/ABI5 Gene Family in Ziziphus jujuba cv. Dongzao and Analysis of Its Response to Drought Stress. Genes. 2025; 16(7):785. https://doi.org/10.3390/genes16070785

Chicago/Turabian Style

Zhang, Zhikai, Xiaoming Liu, Yu Wang, Jun Zhou, Zhongwu Wan, Xin Zhang, Jing Wang, Binbin Si, Lan Luo, and Wendi Xu. 2025. "Genome-Wide Identification of the ABF/AREB/ABI5 Gene Family in Ziziphus jujuba cv. Dongzao and Analysis of Its Response to Drought Stress" Genes 16, no. 7: 785. https://doi.org/10.3390/genes16070785

APA Style

Zhang, Z., Liu, X., Wang, Y., Zhou, J., Wan, Z., Zhang, X., Wang, J., Si, B., Luo, L., & Xu, W. (2025). Genome-Wide Identification of the ABF/AREB/ABI5 Gene Family in Ziziphus jujuba cv. Dongzao and Analysis of Its Response to Drought Stress. Genes, 16(7), 785. https://doi.org/10.3390/genes16070785

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