浙江农业学报 ›› 2026, Vol. 38 ›› Issue (5): 857-866.DOI: 10.3969/j.issn.1004-1524.20250307

• 动物科学 • 上一篇    下一篇

三角鲂胚胎不同发育时期的代谢组分析

于咏清1,2(), 唐红1,2, 简杰亮2, 顾志敏1,2,*(), 关文志2,*()   

  1. 1 上海海洋大学 水产与生命学院, 上海 201306
    2 浙江省农业科学院 水生生物研究所, 浙江 杭州 310021
  • 收稿日期:2025-04-15 出版日期:2026-05-25 发布日期:2026-06-02
  • 作者简介:于咏清,研究方向为鱼类遗传育种。E-mail:2796809589@qq.com
  • 通讯作者: 顾志敏,关文志*顾志敏,E-mail:guzhimin2006@163.com;关文志,E-mail:gwzguan@163.com
  • 基金资助:
    国家重点研发计划(2022YFD2400605)

Metabolome analysis of embryos of Megalobrama terminalis at different developmental stages

YU Yongqing1,2(), TANG Hong1,2, JIAN Jieliang2, GU Zhimin1,2,*(), GUAN Wenzhi2,*()   

  1. 1 College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China
    2 Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2025-04-15 Published:2026-05-25 Online:2026-06-02

摘要:

为了探究三角鲂胚胎不同发育时期代谢物的种类、动态变化规律及调控代谢通路,采用基于液相色谱-质谱联用技术(LC-MS)的非靶向代谢组学方法对三角鲂原肠胚期(17 h)、神经胚期(25 h)、肌节形成期(32 h)、尾芽期(41 h)、肌肉效应期(50 h)和心跳期(58 h)的胚胎样品进行分析。结果显示,共检测出952种代谢物,主要涉及脂质和类脂分子、有机酸及其衍生物和有机杂环化合物等。差异代谢物比较分析显示,9,11-十四碳二烯二酰基肉碱和三聚乙醛为三角鲂胚胎发育32 h时的特有代谢物,墨蝶呤、硬脂醛和β-硝基丙酸为58 h时的特有代谢物。KEGG富集分析结果表明,核苷酸代谢、ABC转运蛋白和氨酰基tRNA生物合成等代谢通路,在三角鲂胚胎发育过程的遗传物质及蛋白质生物合成、能量代谢和信号传导等方面发挥重要的生物学功能。本研究结果可为提高三角鲂受精卵孵化率提供理论支持。

关键词: 三角鲂, 胚胎发育, 代谢组学, 差异代谢物, 高效孵化

Abstract:

To investigate the types, dynamic variation patterns and regulatory metabolic pathways of metabolites during different developmental stages of Megalobrama terminalis embryos, a non-targeted metabolomic approach based on liquid chromatography-mass spectrometry (LC-MS) was employed to analyze embryo samples collected at the gastrula stage (17 h), neurula stage (25 h), somitogenesis stage (32 h), tail bud stage (41 h), muscular effect stage (50 h) and heart beating stage (58 h). The results showed that a total of 952 metabolites were detected, mainly including lipids and lipid-like molecules, organic acids and derivatives, and organoheterocyclic compounds. Comparative analysis of differential metabolites revealed that 9,11-tetradecadienedioylcarnitine and paraldehyde were unique to Megalobrama terminalis embryos at 32 h of development, while sepiapterin, stearaldehyde and β-nitropropionic acid were specific metabolites at 58 h. KEGG enrichment analysis indicated that metabolic pathways such as nucleotide metabolism, ABC transporters and aminoacyl-tRNA biosynthesis exerted important biological functions in the processes of genetic material and protein biosynthesis, energy metabolism and signal transduction during embryonic development of Megalobrama terminalis. The findings of this study can provide theoretical support for improving the hatching rate of fertilized eggs of Megalobrama terminalis.

Key words: Megalobrama terminalis, embryonic development, metabolomics, differential metabolites, high-efficiency hatching

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