Integrated Transcriptome and Metabolome Analysis of Color Change and Low-Temperature Response during Flowering of Prunus mume

In China, Prunus mume is a famous flowering tree that has been cultivated for 3000 years. P. mume grows in tropical and subtropical regions, and most varieties lack cold resistance; thus, it is necessary to study the low-temperature response mechanism of P. mume to expand the scope of its cultivatio...

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Bibliographic Details
Published in:International journal of molecular sciences 2022-11, Vol.23 (21), p.12831
Main Authors: Dong, Bin, Zheng, Zifei, Zhong, Shiwei, Ye, Yong, Wang, Yiguang, Yang, Liyuan, Xiao, Zheng, Fang, Qiu, Zhao, Hongbo
Format: Article
Language:English
Subjects:
Biosynthesis
Cold
Cold resistance
cold response
Correlation analysis
Cultivars
Domestication
Flowering
Flowers & plants
Gene expression
Genes
Genomes
Genomics
Low temperature
Low temperature resistance
Metabolism
Metabolites
metabolome
Metabolomics
Physiology
Plant breeding
Prunus mume
Signal transduction
Sugar
Temperature effects
Transcription factors
transcriptome
Transcriptomes
Transcriptomics
Wilt
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Summary:In China, Prunus mume is a famous flowering tree that has been cultivated for 3000 years. P. mume grows in tropical and subtropical regions, and most varieties lack cold resistance; thus, it is necessary to study the low-temperature response mechanism of P. mume to expand the scope of its cultivation. We used the integrated transcriptomic and metabolomic analysis of a cold-resistant variety of P. mume ‘Meiren’, to identify key genes and metabolites associated with low temperatures during flowering. The ‘Meiren’ cultivar responded in a timely manner to temperature by way of a low-temperature signal transduction pathway. After experiencing low temperatures, the petals fade and wilt, resulting in low ornamental value. At the same time, in the cold response pathway, the activities of related transcription factors up- or downregulate genes and metabolites related to low temperature-induced proteins, osmotic regulators, protective enzyme systems, and biosynthesis and metabolism of sugars and acids. Our findings promote research on the adaptation of P. mume to low temperatures during wintering and early flowering for domestication and breeding.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms232112831