Genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of Sophora tonkinensis via transcriptomics and metabolomics

Abstract Background Sophora tonkinensis Gagnep is a significant Chinese herbal medicine, primarily composed of alkaloids and flavonoids, which are its key pharmacological components. Despite its importance, the metabolic pathways of these substances in S. tonkinensis remain inadequately explored. Re...

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Main Authors: Ying Liang, Guili Wei, Ximei Liang, Meiqiong Tang, Hong He, Danfeng Tang, Yang Lin, Linxuan Li, Shuangshuang Qin, Fan Wei
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Plant Biology
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Online Access:https://doi.org/10.1186/s12870-025-06865-4
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author Ying Liang
Guili Wei
Ximei Liang
Meiqiong Tang
Hong He
Danfeng Tang
Yang Lin
Linxuan Li
Shuangshuang Qin
Fan Wei
author_facet Ying Liang
Guili Wei
Ximei Liang
Meiqiong Tang
Hong He
Danfeng Tang
Yang Lin
Linxuan Li
Shuangshuang Qin
Fan Wei
author_sort Ying Liang
collection DOAJ
description Abstract Background Sophora tonkinensis Gagnep is a significant Chinese herbal medicine, primarily composed of alkaloids and flavonoids, which are its key pharmacological components. Despite its importance, the metabolic pathways of these substances in S. tonkinensis remain inadequately explored. Results This study investigates the molecular regulation of alkaloid and flavonoid accumulation in S. tonkinensis. Through high-throughput transcriptome sequencing (RNA-seq) and liquid chromatography-mass spectrometry (LC-MS) of seeds, leaves, stems, and roots, the research identifies differential metabolites and genes involved in alkaloid and flavonoid biosynthesis. The transcriptome analysis reveals 2,727 differentially expressed genes (DEGs), with 35 related to alkaloids and 48 to flavonoids. Metabolome analysis uncovers 296 differentially accumulated metabolites (DAMs), including 23 alkaloid-related DAMs and 23 flavonoid-related DAMs. Additionally, weighted gene co-expression network analysis suggests StCAO (evm.model.3.924) as a key regulator of alkaloid biosynthesis and StCHIs (evm.model.3.2047, evm.model.1.2104, and evm.model.1.2101) as crucial genes for flavonoid biosynthesis. To validate these findings, qPCR validation confirmed the consistency of expression trends for 12 selected DEGs across the roots, stems, leaves, and seeds of S. tonkinensis. Conclusion This study offers a comprehensive analysis of the regulatory mechanisms governing alkaloid and flavonoid accumulation, as well as the associated key genes, across various S. tonkinensis tissues. These findings pave the way for future research into the regulatory processes of alkaloids and flavonoids in S. tonkinensis.
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language English
publishDate 2025-07-01
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spelling doaj-art-4424d2a2d0f44b67a5e77ca2e7c29e6a2025-08-20T04:01:26ZengBMCBMC Plant Biology1471-22292025-07-0125111410.1186/s12870-025-06865-4Genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of Sophora tonkinensis via transcriptomics and metabolomicsYing Liang0Guili Wei1Ximei Liang2Meiqiong Tang3Hong He4Danfeng Tang5Yang Lin6Linxuan Li7Shuangshuang Qin8Fan Wei9Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsGuangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, National Center for Traditional Chinese Medicine (TCM) Inheritance and Innovation, Guangxi Botanical Garden of Medicinal PlantsAbstract Background Sophora tonkinensis Gagnep is a significant Chinese herbal medicine, primarily composed of alkaloids and flavonoids, which are its key pharmacological components. Despite its importance, the metabolic pathways of these substances in S. tonkinensis remain inadequately explored. Results This study investigates the molecular regulation of alkaloid and flavonoid accumulation in S. tonkinensis. Through high-throughput transcriptome sequencing (RNA-seq) and liquid chromatography-mass spectrometry (LC-MS) of seeds, leaves, stems, and roots, the research identifies differential metabolites and genes involved in alkaloid and flavonoid biosynthesis. The transcriptome analysis reveals 2,727 differentially expressed genes (DEGs), with 35 related to alkaloids and 48 to flavonoids. Metabolome analysis uncovers 296 differentially accumulated metabolites (DAMs), including 23 alkaloid-related DAMs and 23 flavonoid-related DAMs. Additionally, weighted gene co-expression network analysis suggests StCAO (evm.model.3.924) as a key regulator of alkaloid biosynthesis and StCHIs (evm.model.3.2047, evm.model.1.2104, and evm.model.1.2101) as crucial genes for flavonoid biosynthesis. To validate these findings, qPCR validation confirmed the consistency of expression trends for 12 selected DEGs across the roots, stems, leaves, and seeds of S. tonkinensis. Conclusion This study offers a comprehensive analysis of the regulatory mechanisms governing alkaloid and flavonoid accumulation, as well as the associated key genes, across various S. tonkinensis tissues. These findings pave the way for future research into the regulatory processes of alkaloids and flavonoids in S. tonkinensis.https://doi.org/10.1186/s12870-025-06865-4Sophora tonkinensisTranscriptomicsMetabolomicsAlkaloidsFlavonoids
spellingShingle Ying Liang
Guili Wei
Ximei Liang
Meiqiong Tang
Hong He
Danfeng Tang
Yang Lin
Linxuan Li
Shuangshuang Qin
Fan Wei
Genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of Sophora tonkinensis via transcriptomics and metabolomics
BMC Plant Biology
Sophora tonkinensis
Transcriptomics
Metabolomics
Alkaloids
Flavonoids
title Genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of Sophora tonkinensis via transcriptomics and metabolomics
title_full Genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of Sophora tonkinensis via transcriptomics and metabolomics
title_fullStr Genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of Sophora tonkinensis via transcriptomics and metabolomics
title_full_unstemmed Genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of Sophora tonkinensis via transcriptomics and metabolomics
title_short Genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of Sophora tonkinensis via transcriptomics and metabolomics
title_sort genes involved in the regulation of alkaloid and flavonoid biosynthesis in different tissues of sophora tonkinensis via transcriptomics and metabolomics
topic Sophora tonkinensis
Transcriptomics
Metabolomics
Alkaloids
Flavonoids
url https://doi.org/10.1186/s12870-025-06865-4
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