Biotechnology Bulletin ›› 2024, Vol. 40 ›› Issue (11): 184-191.doi: 10.13560/j.cnki.biotech.bull.1985.2024-0328

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Identification of ABF/AREB Gene Family and Their Expression Analysis in Jujube Fruit

YANG Chong1,2(), CHENG Sha-sha2, AI Chang-feng2, ZHAO Xuan2, LIU Meng-jun2()   

  1. 1. National Engineering Research Center for Agriculture in Northern Mountainous Areas, Hebei Agricultural University, Baoding 071001
    2. College of Horticulture, Hebei Agricultural University, Baoding 071001
  • Received:2024-04-07 Online:2024-11-26 Published:2024-12-19
  • Contact: LIU Meng-jun E-mail:hbndyc@163.com;lmj1234567@aliyun.com

Abstract:

【Objective】 ABFs(ABRE binding factors)/AREB(ABA responsive element binding)transcription factors, which not only participate in the plant stress response, but also affect the development of plants and fruits. Understanding its role in jujube fruit development provides a basis for further study of jujube ABF gene function. 【Method】 We conducted genome-wide identification of jujube ABF gene and analyzed the physicochemical analysis, subcellular localization, gene structure, motifs, phylogenetic relationships, promoter cis-acting elements and expression patterns. 【Result】 Five ABF genes were found in the jujube genome and located on five different pseudochromosomes. The length of the coding amino acid sequence of ZjABF was 321 to 474 aa, the isoelectric point was 7.75 to 9.85, the hydrophilic coefficient was between -0.807 and -0.592, and all five members were hydrophilic proteins. The instability coefficient ranged from 35.62 to 61.51. Gene structure and motif analysis showed that all ABF family members had UTR, containing 3 to 5 exons and 6 to 7 motifs. Phylogenetic trees grouped the ABF family into three large classes. Promoter cis-acting element analysis showed that jujube ABF gene family promoters had multiple cis-acting elements related to response hormones and abiotic stress. By analyzing the transcriptome data at different stages of fruit development, all ZjABFs except ZjABF4 were differently expressed, indicating that the ABF family played a regulatory role in fruit development. Interacting proteins of ZjABF3, ZjABF4, and ZjABF5 were predicted using homologous proteins. 【Conclusion】 The structure of ABF family in jujube is conserved, and there are multiple cis-acting elements in the promoter region that respond to hormones and abiotic stress, with different expression patterns during different stages of fruit development.

Key words: Ziziphus jujuba Mill., ABF/AREB gene family, bioinformatics analysis, fruit development