浙江农业科学 ›› 2026, Vol. 67 ›› Issue (3): 634-639.DOI: 10.16178/j.issn.0528-9017.20240951

• 药用植物 • 上一篇    下一篇

铁皮石斛DoGSTF11基因的生物信息学及表达模式分析

张逸群1(), 陈家栋1, 吴永强2, 宋敏全3, 刘莹莹1, 段晓婧1, 陶正明1, 姜武1()   

  1. 1.浙江省亚热带作物研究所,浙江 温州 325005
    2.淳安县林业局,浙江 杭州 311700
    3.浙江铁枫堂生物科技股份有限公司,浙江 温州 325005
  • 收稿日期:2024-12-13 出版日期:2026-03-11 发布日期:2026-03-30
  • 通讯作者: 姜武
  • 作者简介:姜武,E-mail:jiangwu8888@163.com
    张逸群,从事中药品质评价与质量控制研究。E-mail:13867399550@163.com
  • 基金资助:
    浙江省自然科学基金项目(LQ22H280018);温州市重大科技创新攻关项目(ZN2023005);温州市科技特派员专项项目(X2023018);温州市农业新品种选育协作组项目(ZX2024005-1);乐清市农业科技计划项目(2023N002);浙江省农业科学院乐清共同富裕产业研究院项目

Bioinformatics and expression pattern analysis of DoGSTF11 in Dendrobium officinale

ZHANG Yiqun1(), CHEN Jiadong1, WU Yongqiang2, SONG Minquan3, LIU Yingying1, DUAN Xiaojing1, TAO Zhengming1, JIANG Wu1()   

  1. 1.Zhejiang Institute of Subtropical Crops,Wenzhou 325005,Zhejiang
    2.Forestry Bureau in Chun'an County,Hangzhou 311700,Zhejiang
    3.Zhejiang Tiefengtang Biotechnology Co. ,Ltd. ,Wenzhou 325005,Zhejiang
  • Received:2024-12-13 Online:2026-03-11 Published:2026-03-30
  • Contact: JIANG Wu

摘要:

谷胱甘肽转移酶(glutathione S-transferases,GST)广泛存在于植物中,参与植物次生代谢产物的转运、异源物质解毒、激素调节、细胞凋亡等过程。本试验对克隆得到的1个铁皮石斛GST候选基因DoGSTF11进行生物信息学及表达模式分析发现,DoGSTF11基因编码221个氨基酸。DoGSTF11蛋白相对分子质量为25.16 ku,理论等电点为6.34,为疏水性不稳定蛋白,无跨膜结构域和信号肽,含有10个蛋白磷酸化位点,具有N端和C端2个保守结构域。氨基酸序列分析表明,DoGSTF11蛋白与葡萄VvGST4蛋白相似性最高,相似度达67.0%。组织特异性表达分析结果显示,DoGSTF11在不同品系中的相对表达量为:紫秆>粉秆>绿秆,在不同组织中的相对表达量为:花>叶>茎>根。顺式作用元件分析结果表明,DoGSTF11基因启动子序列含有多种植物激素及环境因子相关的顺式作用元件,且在低温诱导下显著(p<0.05)上调表达,推测该基因可能参与铁皮石斛响应低温胁迫的调控途径。本研究为后续探究DoGSTF11基因功能及其参与非生物胁迫响应中的作用机制提供理论依据。

关键词: 铁皮石斛, DoGSTF11基因, 生物信息学, 表达

Abstract:

Glutathione S-transferases (GST) are widely distributed in plants,and they participate in the transport of secondary metabolites in plants,the detoxification of heterologous substances,hormone regulation and cell apoptosis,et al. In this study,we analyzed one selected GST gene named DoGSTF11 through bioinformatics and expression pattern analysis. The results showed that DoGSTF11 gene encoded 221 amino acids. The relative molecular weight of DoGSTF11 protein was 25.16 ku,and its theoretical isoelectric point(pI)was 6.34. The DoGSTF11 protein was an unstable hydrophobic protein,with no transmembrane domain or signal peptide. It contained 10 protein phosphorylation sites and featured two conserved domains:N-terminal domain and C-terminal domain. Amino acid sequence analysis showed that DoGSTF11 protein had the highest homology with VvGST4 protein of V. vinifera,with a similarity of 67.0%. Tissue-specific expression analysis showed that the relative expression levels of DoGSTF11 gene varied across different strains as follows:purplish stem > pink stem > green stem,and across different tissues as follows:flower > leaf > stem > root. The results of cis-acting element analysis showed that the promoter sequence of DoGSTF11 gene contained multiple elements,which were related to plant hormones and environmental factors. The expression of DoGSTF11 gene was significantly(p<0.05) up-regulated under the induction of low temperature,which suggested that this gene may regulate the low temperature response process of Dendrobiumofficinale. This study provides a theoretical basis for further exploration of the function of DoGSTF11 gene and its role in response to abiotic stress.

Key words: Dendrobium officinale Kimura et Migo, DoGSTF11 gene, bioinformatics analysis, expression

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