Genome-Wide Identification of the CIF Gene Family and Protein Interaction with GSO1s Under the p-HBA-Induced Continuous Cropping Obstacle in Pogostemon cablin
文献类型: 外文期刊
作者: Jieyun Fang;Siru Liu;Yating Su;Muhammad Zeeshan Ul Haq;Yougen Wu;Ya Liu;Xiuxia Ren
作者机构:
关键词: Alphafold;Casparian strip;Pogostemon cablin;small peptide;stress
期刊名称: International Journal of Molecular Sciences
ISSN: 1661-6596
年卷期: 2025 年 26 卷 4 期
页码:
收录情况: SCIE(2025版)
摘要: Casparian strip integrity factors (CIFs), which are tyrosine-sulfated small peptides, are crucial genes involved in the formation and regulation of the Casparian strip and play an important role in the regulation of plant stress response. In order to explore the evolution, characteristics, role, and function of CIFs in response to continuous cropping obstacles (CCOs), the bioinformatics and gene expression analysis of CIF genes in Pogostemon cablin was carried out by determining the phylogenetic relationship, chromosome location, gene structure, and RT–qPCR results. Results showed that a total of 12 PatCIF family genes were identified on 12 different chromosomes. Promoter prediction analysis revealed 16 different cis-regulatory elements. A systematic evolutionary study of 33 species indicates CIF family genes originated from Spermatophyta. Collinearity analysis revealed P. cablin shared 19 syntenic genes with Solanum lycopersicum and only 8 with Oryza sativa. Transcriptome analysis indicated that the expression of PatCIF1–4 and PatGSO1b/1c/1f genes decreased under p-hydroxybenzoic acid treatment, and further RT–qPCR validation of four PatCIF genes was consistent with the results. AlphaFold prediction showed a protein interaction region between PatCIF1–4 mature peptide and PatGSO1b/1c/1f via the LRR domain, which provides a key binding surface for mature PatCIFs. This study offers a theoretical basis to investigate the roles of PatCIFs and PatGSO1s in CCOs and their protein interactions in P. cablin.
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