生物技术通报 ›› 2025, Vol. 41 ›› Issue (8): 242-254.doi: 10.13560/j.cnki.biotech.bull.1985.2024-1212

• 研究报告 • 上一篇    

赤苍藤WRI1基因家族的全基因组鉴定及表达模式分析

黄诗宇(), 田姗姗, 杨天为, 高曼熔, 张尚文()   

  1. 广西农业科学院生物技术研究所,南宁 530007
  • 收稿日期:2024-12-16 出版日期:2025-08-26 发布日期:2025-08-14
  • 通讯作者: 张尚文,男,硕士,副研究员,研究方向 :特色药用植物种质资源开发与遗传改良;E-mail: 63838114@qq.com
  • 作者简介:黄诗宇,女,助理研究员,研究方向 :特色药用植物种质资源开发与遗传改良;E-mail: 304312246@qq.com
    第一联系人:共同第一作者
  • 基金资助:
    国家现代农业产业技术体系(CARS-21);广西重点研发计划(桂科AB21220042);广西农业科学院基本科研业务专项(桂农科2025YP072);广西农业科学院基本科研业务专项(桂农科2022JM51);广西特色作物试验站“广西隆安中草药试验站”(桂TS2022002)

Genome-wide Identification and Expression Pattern Analysis of WRI1 Gene Family in Erythropalum scandens

HUANG Shi-yu(), TIAN Shan-shan, YANG Tian-wei, GAO Man-rong, ZHANG Shang-wen()   

  1. Biotechnology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007
  • Received:2024-12-16 Published:2025-08-26 Online:2025-08-14

摘要:

目的 鉴定赤苍藤WRI1转录因子,为进一步探究WRI1在油脂合成中的作用提供基础。 方法 基于赤苍藤全基因组数据利用生物信息学方法,鉴定赤苍藤中的WRI1转录因子,基于转录组数据分析WRI1在赤苍藤不同组织中的表达模式。 结果 在赤苍藤鉴定出17个含有2个AP2保守结构域的WRI1蛋白(EsWRI1-1-EsWRI1-17),氨基酸数为359-776,平均分子量为56 kD,多为偏酸性不稳定亲水性蛋白。亚细胞定位显示其多位于细胞核,17个EsWRI1s成员不均匀分布在8条染色体上;蛋白序列系统发育分析结果将17个WRI1蛋白分为9个亚家族(Grooup1-Group9),其中Group3成员与拟南芥、大豆亲缘关系较近,EsWRI1-10与拟南芥亲缘关系最近。EsWRI1s基因家族启动子分析显示,含有较多的生物与非生物胁迫、植物激素响应及植物生长发育相关的基序,其中生长发育相关的元件最多。基因表达模式分析显示,EsWRI1-10EsWRI1-14EsWRI1-16基因在未成熟种仁中的表达量高于其他组织,其中EsWRI1-10基因在赤苍藤种仁形成中发挥主要作用;EsWRI1-11EsWRI1-17EsWRI1-7在赤苍藤的不同组织中均有较高表达。RT-qPCR验证与转录组数据一致。 结论 共鉴定出17个WRI1基因,编码蛋白均具有良好的热稳定性和亲水性且预测主要定位于细胞核;EsWRI1s基因家族与拟南芥、大豆、蒜头果WRI1都具有较高的同源性;特定基因在未成熟种仁特异性表达,暗示其对种仁生长发育有重要作用,可能在赤苍藤油脂合成中发挥着关键作用。

关键词: 赤苍藤, WRI1转录因子, 基因家族, 油脂, 药食同源植物, 油酸, 表达模式分析

Abstract:

Objective Identification of the WRI1 transcription factor in Erythropalum scandens provides a foundation for further investigation into its role in lipid biosynthesis. Method The whole genome data of E. scandens were used to identify the WRI1 transcription factors in E. scandens by bioinformatics methods. Based on transcriptome data, the expression patterns of WRI1 in different tissues of E. scandens were analyzed. Result A total of 17 WRI1proteins (EsWRI1-1-EsWRI1-17) containing two AP2 conserved domains were identified in E. scandens. The number of amino acids was 359-776, and the average molecular weight was 56 kD. Most of them were acidic and unstably hydrophilic proteins. Subcellular localization showed that it was mostly located in the nucleus, and 17 EsWRI1s members were unevenly distributed on 8 chromosomes. The results of protein sequence phylogenetic analysis divided 17 WRI1 proteins into nine subfamilies (Group 1-Group 9). Among them, Group 3 members were closely related to Arabidopsis thaliana and Glycine max, and EsWRI1-10 was closely related to A. thaliana. The promoter analysis of the EsWRI1s gene family showed that it contained more motifs related to biotic and abiotic stress, plant response to hormone,and plant growth and development, among which the growth and development-related elements were the most. The analysis of gene expression patterns showed that the expressions of EsWRI1-10, EsWRI1-14 and EsWRI1-16 genes in immature kernels were higher than those in other tissues, among which EsWRI1-10 gene played a major role in the formation of kernels, EsWRI1-11, EsWRI1-17 and EsWRI1-7 were highly expressed in different tissues of E. scandens. The RT-qPCR validation was consistent with the transcriptome data. Conclusion A total of 17 WRI1 genes are identified. Their encoded proteins possess favorable thermal stability and hydrophilicity and are predicted to be mainly located in the cell nucleus. The EsWRI1s gene family shares high homology with that of A. thaliana, G. max and M. oleifera. Specific genes are expressed specifically in immature seed kernels, implying their significant roles in kernel growth and development and potentially in lipid synthesis of E. scandens.

Key words: Erythropalum scandens, WRI1 transcription factor, gene family, oil, medicine and food homologous plants, oleic acid, expression pattern analysis