ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Metabolism and Chemodiversity
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1557366
This article is part of the Research TopicIn-Depth Interpretation of Critical Genomic Information Related to the Biosynthesis of Key Specialized (Secondary) Metabolism in Medicinal PlantsView all 13 articles
Genome-Wide Identification and Analysis of OSC Gene Family in Panax japonicus
Provisionally accepted
- 1Huazhong Agricultural University, Wuhan, China
- 2Shennongjia Academy of Forestry, Shennongjia, China
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Panax japonicus is an important medicinal plant rich in triterpenoids. However, the biosynthetic pathway of triterpenoids in remains poorly understood. In this study, we employed a genome-wide strategy to systematically identify twenty-one candidate 2,3-oxidosqualene cyclases in P. japonicus (PjOSC) genes. Meanwhile, the conserved patterns of promoters, gene structures and cis-acting elements were also analyzed. Moreover, these PjOSC genes were distributed on 11 chromosomes. We conducted a synteny analysis to understand the evolution of the P. japonicus PjOSC gene family. A total of 19 gene pairs of PjOSCs were identified through tandem or segmental duplication events. Promoter prediction revealed the presence of various cis-acting elements related to abiotic stresses and phytohormone response within the 2 kb upstream region of PjOSCs. Transcriptome and qRT-PCR analyses demonstrated that the expression of PjOSCs is tissue-specific. Collectively, these findings suggest that PjOSCs play a key role in the synthesis of triterpenoids in P. japonicus. The results provide an understanding of PjOSCs in P. japonicus and lay the foundation for a further functional analysis of PjOSC genes in the triterpenoid anabolism of P. japonicus.
Keywords: Panax japonicus, OSC, triterpenoids, PjOSCs, phylogenetic analysis
Received: 08 Jan 2025; Accepted: 17 Jun 2025.
Copyright: © 2025 Yang, Wang and Hu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Xuebo Hu, Huazhong Agricultural University, Wuhan, China
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