生物技术通报 ›› 2025, Vol. 41 ›› Issue (10): 277-291.doi: 10.13560/j.cnki.biotech.bull.1985.2025-0302

• 研究报告 • 上一篇    下一篇

转录组与代谢组联合分析南阳艾嫩叶与老叶的萜类成分差异

冀梦然(), 张瑞英, 刘红丹, 冯伟萌, 刘秀玉, 马蕊(), 陈随清()   

  1. 河南中医药大学药学院,郑州 450000
  • 收稿日期:2025-03-20 出版日期:2025-10-26 发布日期:2025-10-28
  • 通讯作者: 马蕊,女,博士,讲师,研究方向 :中药资源与质量评价;E-mail: ruimazy@163.com
    陈随清,男,博士,教授,研究方向 :中药资源与质量评价;E-mail: suiqingchen0371@163.com
  • 作者简介:冀梦然,女,硕士研究生,研究方向 :中药资源与质量评价;E-mail: r851368300@163.com
  • 基金资助:
    国家自然科学基金项目(82204551);中央本级重大增减支项目(2060302)

Combined Metabolome and Transcriptome Analysis of the Differences in Terpenoids between New and Old Leaves of Artemisia argyi H. Lév. & Vaniot

JI Meng-ran(), ZHANG Rui-ying, LIU Hong-dan, FENG Wei-meng, LIU Xiu-yu, MA Rui(), CHEN Sui-qing()   

  1. College of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450000
  • Received:2025-03-20 Published:2025-10-26 Online:2025-10-28

摘要:

目的 探究南阳艾在生长发育过程中萜类成分的变化规律,解析其萜类化合物在积累中的分子催化机制。 方法 采用气相色谱-质谱联用技术(GC-MS)和PacBio平台的单分子实时测序技术(single molecule real-time, SMRT)对南阳艾的嫩叶和老叶进行代谢组学和转录组学联合分析。 结果 嫩叶与老叶代谢组学分析共得到150个差异代谢物,包括萜类(33个)、杂环化合物(26个)和酯类(24个)等,其中老叶相对于嫩叶有149个下调代谢物和1个上调代谢物,共有4个差异代谢物富集到与萜类生物合成有关的代谢通路中。转录组学结果表明,嫩叶和老叶的差异基因有711个,其中406个上调,305个下调,有2个差异基因注释到与萜类合成相关的途径。有12种特定的萜类代谢物参与萜类生物合成,与之相关的关键基因主要有1-脱氧-D-木酮糖-5-磷酸合酶(1-deoxy-D-xylulose-5-phosphate synthase, DXS)、牻牛儿基牻牛儿基焦磷酸合酶(geranylgeranyl pyrophosphate synthase, GGPS)等。 结论 南阳艾嫩叶与老叶的基因表达和代谢水平具有一定差异,但在萜类生物合成途径上基因的表达量差异不大,推测原因为同一时期同一株植物不同发育程度的叶片基因表达差异程度较小。

关键词: 南阳艾, 萜类, 生物合成, 代谢组, 转录组

Abstract:

Objective To explore the changes of terpenoids in Artemisia argyi H. Lév. & Vaniot during its growth and development, and analyze the molecular catalytic mechanism of terpenoids in its accumulation. Method Gas chromatography-mass spectrometry (GC-MS) and Single Molecule Real-Time (SMRT) sequencing technology of the PacBio platform were used to analyze the metabolomics and transcriptomics of new leaves and old leaves of A. argyi. Result Metabolomics results showed that 150 different metabolites were obtained, including terpenoids (33), heterocyclic compounds (26) and esters (24). There were 149 down-regulated metabolites and 1 up-regulated metabolite in old leaves when compared with those in new leaves. A total of 4 different metabolites were enriched into metabolic pathways related to terpenoid synthesis. The transcriptomic results showed that there were 711 differential genes between new leaves and old leaves, of which 406 were up-regulated, and 305 were down-regulated. And 2 differential genes were annotated to the pathway related to terpenoid synthesis. There were 12 specific terpenoid metabolites involved in terpenoid biosynthesis, and the key genes related to them mainly include 1-deoxy-D-xylulose-5-phosphate synthase (DXS), geranylgeranyl pyrophosphate synthase (GGPS), etc. Conclusion There are some differences in gene expression and metabolism between new leaves and old leaves of A. argyi. But there is little difference in gene expression in the pathway of terpenoid biosynthesis. It is speculated that the difference of gene expression in the leaves of the same plant with different developmental degrees being little.

Key words: Artemisia argyi H. Lév. & Vaniot., terpenoids, biosynthesis, metabolome, transcriptome