生物技术通报 ›› 2025, Vol. 41 ›› Issue (8): 197-210.doi: 10.13560/j.cnki.biotech.bull.1985.2025-0094

• 研究报告 • 上一篇    

铁皮石斛bZIP转录因子家族全基因组鉴定及表达分析

曾丹1,2(), 黄园1,2(), 王健1,2, 张艳1,2, 刘庆霞1,2, 谷荣辉3, 孙庆文1,2, 陈宏宇1,2   

  1. 1.贵州中医药大学药学院,贵阳 550025
    2.贵州省中药民族药材种质资源保存及评价工程研究中心,贵阳 550025
    3.贵州大学食品与酿酒学院,贵阳 550025
  • 收稿日期:2025-01-21 出版日期:2025-08-26 发布日期:2025-08-14
  • 通讯作者: 黄园,女,博士,讲师,研究方向 :中药资源与开发;E-mail: huangyuanhy2014@163.com
  • 作者简介:曾丹,女,研究方向 :中药资源与开发;E-mail: 2146488718@qq.com
  • 基金资助:
    贵州中医药大学大学生创新创业训练计划项目(贵中医大创合字(2023)36号);国家自然科学基金项目(82260740);贵州省高层次创新型人才培养计划项目(黔科合平台人才-GCC[2023]077),贵州省中医药管理局中医药、民族医药科学技术课题(QZYY-2024-115)

Genome-wide Identification and Expression Analysis of bZIP Transcription Factor Family in Dendrobium officinale

ZENG Dan1,2(), HUANG Yuan1,2(), WANG Jian1,2, ZHANG Yan1,2, LIU Qing-xia1,2, GU Rong-hui3, SUN Qing-wen1,2, CHEN Hong-yu1,2   

  1. 1.College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025
    2.Engineering Research Center for the Conservation and Evaluation of Ethnomedicinal Resources of Traditional Chinese Medicine in Guizhou Province, Guiyang 550025
    3.School of Liquor and Food Engineering, Guizhou University, Guiyang 550025
  • Received:2025-01-21 Published:2025-08-26 Online:2025-08-14

摘要:

目的 鉴定铁皮石斛(Dendrobium officinalebZIP基因家族,通过生物信息学和基因表达分析,阐明DobZIP转录因子的生物学功能,为后续深入探究DobZIP转录因子的分子机制提供理论指导。 方法 基于IMP数据库中的铁皮石斛基因组数据鉴定出铁皮石斛bZIP基因家族成员,对该家族成员进行多项生物信息学分析,同时利用转录组数据和实时荧光定量PCR技术对DobZIP转录因子进行组织表达模式及非生物胁迫表达分析。 结果 共鉴定出54个DobZIP基因,DobZIP蛋白均无信号肽,仅有DobZIP54有跨膜结构域,亚细胞定位主要在细胞核中。DobZIP家族成员划分在10个亚家族,且同一亚家族成员含有相似的结构和基序;DobZIP不均匀地分布在18条染色体上,有两对基因间存在串联关系,种间存在多条共线性关系,与水稻的bZIP家族同源性较高。顺势作用元件分析表明,DobZIP家族成员均含有多个参与生长发育和响应逆境胁迫的顺式作用元件。基因表达模式分析显示,DobZIP家族成员存在组织表达特异性,且DobZIP4DobZIP10、DobZIP28、DobZIP32、DobZIP37在不同程度上受低温、干旱和氯化钠胁迫的诱导。除DobZIP32DobZIP37外,DobZIP4DobZIP10、DobZIP28还受高温胁迫的诱导。 结论 铁皮石斛基因组中共鉴定出54个DobZIP基因,DobZIP具有组织表达特异性,且DobZIP4DobZIP10、DobZIP28、DobZIP32、DobZIP37在低温、干旱和氯化钠胁迫下均受到不同程度的诱导。

关键词: 铁皮石斛, 转录因子, bZIP, 生信分析, 基因表达分析

Abstract:

Objective To identify the bZIP gene family of Dendrobium officinale,and clarify the biological function of DobZIP transcription factors through bioinformatics and gene expression analysis, thus aiming to provide theoretical guidance for further exploration of the molecular mechanism of DobZIP transcription factors. Method Based on the genome data of Dendrobium officinale in the IMP database, we identified the members of DobZIP gene family, and performed multiple of bioinformatics analysis. Furthermore, we used transcriptome data and real-time fluorescent quantitative PCR technology to analyze the tissue expression pattern and abiotic stress expression of DobZIP transcription factors. Result A total of 54 DobZIP genes were identified. None of the DobZIP proteins had signal peptides, and only DobZIP54 had a transmembrane domain. The subcellular localization of the DobZIP proteins were mainly in the nucleus. Members of the DobZIP family were classified into 10 subfamilies, and members of the same subfamily contained similar structures and motifs. DobZIP genes were unevenly distributed on 18 chromosomes, with two pairs of genes showing tandem relationships. There were multiple collinear relationships between species, and DobZIP family had a high homology with the OsbZIP family in rice. Cis-acting elements analysis indicated that the DobZIP family members all contained multiple cis-acting elements involved in growth and development and response to abiotic stress. Gene expression pattern analysis showed that the DobZIP family members had tissue-specific expression, and DobZIP4DobZIP10DobZIP28DobZIP32 and DobZIP37 were induced by cold, drought and NaCl stress to varying degrees. In addition to DobZIP32 and DobZIP37, DobZIP4, DobZIP10 and DobZIP28 were also induced by high temperature stress. Conclusion A total of 54 DobZIP genes are identified in the genome of Dendrobium officinale. DobZIP genes was in tissue-specific expression, and DobZIP4, DobZIP10, DobZIP28, DobZIP32 and DobZIP37 are induced to varying degrees under cold, drought, and NaCl stress.

Key words: Dendrobium officinale, transcription factor, bZIP, bioanalysis, gene expression analysis