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Genome-Wide Identification of Peanut B-Boxs and Functional Characterization of AhBBX6 in Salt and Drought Stresses

文献类型： 外文期刊

作者： Tang, Haohong 1 ; Yuan, Cuiling 2 ; Shi, Haonan 1 ; Liu, Feng 1 ; Shan, Shihua 2 ; Wang, Zhijun 3 ; Sun, Quanxi 2 ; Sun, Jie 1 ;

作者机构： 1.Shihezi Univ, Coll Agr, Key Lab Oasis Ecoagr, Shihezi 832000, Peoples R China

2.Shandong Peanut Res Inst, Qingdao 266100, Peoples R China

3.Xinjiang Acad Agr & Reclamat Sci, Biotechnol Res Inst, Shihezi 832000, Peoples R China

关键词： peanut; BBX gene family; abiotic stress; VIGS

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 7 期

页码：

收录情况： SCI

摘要： The B-box (BBX) gene family includes zinc finger protein transcription factors that regulate a multitude of physiological and developmental processes in plants. While BBX gene families have been previously determined in various plants, the members and roles of peanut BBXs are largely unknown. In this research, on the basis of the genome-wide identification of BBXs in three peanut species (Arachis hypogaea, A. duranensis, and A. ipaensis), we investigated the expression profile of the BBXs in various tissues and in response to salt and drought stresses and selected AhBBX6 for functional characterization. We identified a total of 77 BBXs in peanuts, which could be grouped into five subfamilies, with the genes from the same branch of the same subgroup having comparable exon-intron structures. In addition, a significant number of cis-regulatory elements involved in the regulation of responses to light and hormones and abiotic stresses were found in the promoter region of peanut BBXs. Based on the analysis of transcriptome data and qRT-PCR, we identified AhBBX6, AhBBX11, AhBBX13, and AhBBX38 as potential genes associated with tolerance to salt and drought. Silencing AhBBX6 using virus-induced gene silencing compromised the tolerance of peanut plants to salt and drought stresses. The results of this study provide knowledge on peanut BBXs and establish a foundation for future research into their functional roles in peanut development and stress response.

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