The UV-B-Induced Transcription Factor HY5 Regulated Anthocyanin Biosynthesis in Zanthoxylum bungeanum

Pericarp color is an important economic characteristic of . Anthocyanins are the main reason for the pericarp's red appearance in . In this study, through the combined analysis of the metabolome and transcriptome, , whose expression is highly correlated to changes in the anthocyanin content, wa...

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Bibliographic Details
Published in:International journal of molecular sciences 2022-02, Vol.23 (5), p.2651
Main Authors: Zhou, Jing, Meng, Jiaxin, Zhang, Shuangyu, Chi, Rufei, Wang, Cheng, Wang, Dongmei, Li, Houhua
Format: Article
Language:English
Subjects:
Accumulation
Amino acids
Anthocyanins
Anthocyanins - metabolism
Biosynthesis
Complementation
Flavonoids
Fluorescence
Fruit - genetics
Fruit - metabolism
Fruits
Gene expression
Gene Expression Regulation, Plant
Light
Phylogenetics
Plant Proteins - genetics
Plant Proteins - metabolism
Proteins
Ripening
Signal transduction
Transcription factors
Transcription Factors - genetics
Transcription Factors - metabolism
Transcriptome
Transcriptomes
Ultraviolet radiation
UV-B
Zanthoxylum - genetics
Zanthoxylum - metabolism
Zanthoxylum bungeanum
ZbHY5
ZbMYB113
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Summary:Pericarp color is an important economic characteristic of . Anthocyanins are the main reason for the pericarp's red appearance in . In this study, through the combined analysis of the metabolome and transcriptome, , whose expression is highly correlated to changes in the anthocyanin content, was screened and identified. Under natural ripening conditions, the fruit gradually changed in color from green to red, while bagging resulted in the fruit maintaining its green color. After unbagging, the fruit gradually turned red, and the expression and anthocyanin content increased. In addition, the leaves changed from green to red after exposure to UV-B radiation, and the expression and anthocyanin content increased. The transient overexpression of deepened the redness of the leaves and promoted the expression of and as well as anthocyanin accumulation. Bimolecular fluorescence complementation (BIFC) showed that there was an interaction between ZbHY5 and ZbMYB113. These results revealed that under UV-B irradiation, ZbHY5 might regulate the expression levels of the structural genes related to anthocyanin biosynthesis through combination with ZbMYB113, thereby affecting anthocyanin accumulation. This finding provides useful insights for further studies focusing on UV-B-induced anthocyanin accumulation in .
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms23052651