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A R2R3-MYB, VwMYB1, regulates anthocyanin biosynthesis in pansy petal blotch via transcriptional activation of VwF3'5'H.

Plant cell reports - 2 May 2026

Ye Xinyu, Zhu Xiaopei, Li Yudan, Hu Yanke, Mu Jinyan, Du Xiaohua, Liu Huichao

Abstract excerpt

KEY MESSAGE: VwMYB1 directly activates VwF3'5'H to drive delphinidin accumulation, establishing a core regulatory module controlling pansy petal blotch formation. Anthocyanins play a pivotal role in determining the visual characteristics of ornamental plants. To elucidate the molecular basis of the distinctive "blotch" formation in pansy (Viola × wittrockiana), this study employed an integrated approach that...

Topics

Anthocyanins
Plant Proteins
Flowers
Gene Expression Regulation, Plant
Transcription Factors
Transcriptional Activation
Plants, Genetically Modified
Pigmentation
Phenotype
Nicotiana
Promoter Regions, Genetic

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Source

Identifiers

PMID: 42069987
DOI: 10.1007/s00299-026-03842-5

Genes

MYB
F3

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 31 Aug 2026.

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