Evidence map›Paper›PMID 41796307›Full record

ArticleBMC plant biology2026

The role of RaDFR2 regulating flower color formation in Rhododendron agastum.

Hongxi Shi, Yaning Wei, Shiyu Sun, Ximin Zhang, Wei Sun, Zhigang Ju

Abstract read
In one paragraph

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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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Hongxi Shi *Pharmacy College, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China.
Yaning Wei *Pharmacy College, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China.
Shiyu SunKey Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, 550025, China.
Ximin ZhangKey Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, 550025, China.
Wei SunKey Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountain Area of Southwest of China, School of Life Science, Guizhou Normal University, Guiyang, 550025, China. sunwei889@163.com.
Zhigang JuPharmacy College, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China. juzhigangz@163.com.

Funding

by the grants from Guizhou Science and Technology project ZK [2023]270grants from department of education of Guizhou Province [2022]044grants from Guizhou Normal university [2021]B04
6 · The paper itself

Abstract

backgroudAs one kind of flavonoids in plants, anthocyanins are the main important pigments, which are responsible for painting flowers and fruits with various color to facilitate seed distribution and fertilization. The biosynthesis of anthocyanins is regulated by a battery of structural genes and transcription factors. However, the molecular mechanisms underlying anthocyanins accumulation in Rhododendron agastum are still unclear.

resultsHere, the transcriptome and metabolite analysis were compared to reveal candidate genes for flower color formation in R. agastum (pink colors) through RNA-Seq and HPLC-MS/MS. A total of 33 structural genes and 11 R2R3 MYBs were predicted as anthocyanins biosynthesis-related genes. Then, one critical structural gene, Dihydroflavonol 4-reductase 2 (RaDFR2), was isolated and characterized in vitro as well as in vivo to test its function on anthocyanins biosynthesis. The results showed that RaDFR2 had catalytic activity towards dihydroquercetin (DHQ) and dihydromyricetin (DHM), could restore anthocyanins biosynthesis of Arabidopsis tt3 mutant, and lead to enhanced anthocyanins accumulation in transgenic tobacco by up-regulating the expression levels of structural genes and regulatory genes.

conclusionsThis work lays the foundation for revealing the molecular mechanism of flower color formation in R. agastum, and provides genetic resources for improving outward appeal and quality of R. agastum through molecular breeding.

Indexed as

Alcohol OxidoreductasesAnthocyaninsFlowersPigmentationPlant ProteinsRhododendronColorGene Expression Regulation, PlantNicotianaPlants, Genetically ModifiedAlcohol OxidoreductasesAnthocyaninsdihydroflavanol 4-reductasePlant ProteinsAnthocyaninsFlower ColorRaDFRRhododendron agastumTranscriptomics

Identifiers

PMID41796307
PMCPMC13085677

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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.