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A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
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Transcriptome analysis identifies putative genes involved in triterpenoid biosynthesis in Platycodon grandiflorus
Hanwen Yu1, Mengli Liu1, Minzhen Yin1
1College of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China.
Planta
|July 22, 2021
Summary
This study identified genes for triterpenoid saponin biosynthesis in Platycodon grandiflorus (P. grandiflorus) using transcriptome analysis. Findings reveal key genes and their expression patterns, offering insights into this traditional Chinese medicine's valuable compounds.
Area of Science:
- Plant Molecular Biology
- Pharmacognosy
- Genomics
Background:
- Platycodon grandiflorus (P. grandiflorus) is a traditional Chinese medicine rich in pharmacologically active triterpenoid saponins.
- Triterpenoid saponins are the primary bioactive compounds in P. grandiflorus, contributing to its medicinal value.
Purpose of the Study:
- To comprehensively analyze the transcriptome of P. grandiflorus tissues.
- To identify genes involved in the triterpenoid saponin biosynthetic pathway.
- To understand the molecular mechanisms underlying triterpenoid saponin production in P. grandiflorus.
Main Methods:
- Combined single-molecule real-time (PacBio) and next-generation sequencing (DNBSEQ) for transcriptome analysis.
- Quantified four major saponins across different P. grandiflorus tissues.
- Identified full-length transcripts for β-amyrin synthase and 96 candidate differentially expressed genes.
Main Results:
- Total saponin content was highest in roots and lowest in stems/leaves.
- Generated 173,354 non-redundant transcripts and identified key genes in the triterpenoid saponin pathway.
- Validated expression levels of 96 candidate genes using quantitative real-time PCR.
Conclusions:
- Comprehensive transcriptome data provide valuable insights into the triterpenoid saponin biosynthesis pathway in P. grandiflorus.
- Identified key genes and their expression patterns related to saponin production.
- Offers a foundation for future research into the molecular mechanisms of triterpenoid saponin biosynthesis.
