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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： Fang, Jieyun 1 ; Liu, Siru 2 ; Su, Yating 1 ; Ul Haq, Muhammad Zeeshan 1 ; Wu, Yougen 1 ; Liu, Ya 1 ; Ren, Xiuxia 3 ;

作者机构： 1.Hainan Univ, Sch Breeding & Multiplicat, Sch Trop Agr & Forestry, Sanya Inst Breeding & Multiplicat, Sanya 572025, Peoples R China

2.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Key Lab Trop Crops Nutr Hainan Prov, Zhanjiang 524091, Peoples R China

3.Chinese Acad Agr Sci, Inst Vegetables & Flowers, State Key Lab Vegetable Biobreeding, Beijing 100081, Peoples R China

关键词： Pogostemon cablin; Casparian strip; small peptide; stress; Alphafold

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2025 年 26 卷 4 期

页码：

收录情况： SCI

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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