Evidence map›Paper›PMID 42026478›Full record

ArticleBMC plant biology2026

A multi-branched EMS mutant of Isodon lophanthoides var. graciliflorus exhibits significant differences in phytohormones and diterpenoids.

Yongzhen Zou, Keyu Liang, Jingfeng Gu, Shuangshuang Zhao, Ruoting Zhan, Junmin Liu, Liping Wang

Abstract read
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Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

7 authors.

Yongzhen ZouKey Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China.
Keyu LiangKey Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China.
Jingfeng GuDept. of Pharmacy, Shenzhen Hospital of Beijing University of Chinese Medicine, Shenzhen, 518172, Guangdong, China.
Shuangshuang ZhaoGuangdong Agribusiness Tropical Agriculture Institute Co.,Ltd., Guangzhou, Guangdong, 511365, China.
Ruoting ZhanKey Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China.
Junmin LiuKey Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China. liujunmin@gzucm.edu.cn.
Liping WangKey Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China. lipingwang@gzucm.edu.cn.

Funding

2024 Provincial Rural Revitalization Special Fund - Seed Industry Revitalization Action Project - Breeding of High-Quality and High-Yield Varieties in Isodon lophanthoides var. graciliflorus Project No. 2024-NPY-00-048Agricultural Product-Oriented Innovation Team Construction Project for Guangdong Modern Agricultural Industry Technology System (Nan-Yao Industry Technology System) Project No.2024CXTD24The China Postdoctoral Science Foundation 2023M740856The Natural Science Foundation of Guangdong Province 2025A1515011319The Postdoctoral Fellowship Program of CPSF GZC20230627Yunfu Traditional Chinese Medicine (Nan-Yao) Industry Innovation Team Project YunKehan [2023] No. 96, 202301
6 · The paper itself

Abstract

backgroundIsodon lophanthoides var. graciliflorus (Benth.) H. Hara, serves as one of the botanical sources for the traditional Chinese medicine "Xihuangcao". Mixed germplasm resources and insufficient high-quality cultivars hinder its sustainable and high-quality development.

resultsIn this study, we generated a multi-branched mutant B88, induced by ethyl methanesulfonate (EMS). It exhibits a 36.78% increase in branching, and a 39.64% increase in plant height at maturity compared to the wild-type (WT) plants, implying high-yield potential. Although Simple Sequence Repeat (SSR) molecular markers revealed genetic variations, it retained the same chromosome number as the WT, indicating genetic stability and continuity. Transcriptomics revealed differentially expressed genes (DEGs) enriched in phytohormone biosynthesis and signal transduction pathways, and metabolomic identified 54 differentially accumulated metabolites (DAMs), mainly flavonoids and terpenoids. DEGs and DAMs were significantly enriched in diterpenoid biosynthesis, particularly the gibberellin (GA) pathway, with 4.79-fold higher GA content compared to the WT and three key genes (ent-Copalyl Diphosphate Synthase, CPS; Gibberellin 20-oxidase, GA20ox; Gibberellin 2-oxidase, GA2ox) showing significant differences, suggesting that GA may have a comprehensive regulatory effect on plant height, branching, and accumulation of bioactive compounds in I. lophanthoides var. graciliflorus.

conclusionsThis study strongly supported the value of the breeding material-B88 mutant, enriched the genetic diversity of I. lophanthoides var. graciliflorus, and revealed the potential of EMS mutagenesis in the improvement of medicinal plants, offering new insights for elucidating the effects of EMS mutagenesis on the growth regulation, quality improvement, and germplasm innovation of I. lophanthoides var. graciliflorus.

Indexed as

DiterpenesIsodonPlant Growth RegulatorsEthyl MethanesulfonateGibberellinsMutationDiterpenesEthyl MethanesulfonateGibberellinsPlant Growth RegulatorsDiterpenoid biosynthesisEthyl methanesulfonate inductionGibberellinIsodon lophanthoides var. graciliflorusMulti-branched

Identifiers

PMID42026478
PMCPMC13348553

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.