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Metabolome and Transcriptome Analyses Unravels Molecular Mechanisms of Leaf Color Variation by Anthocyanidin Biosynthesis in Acer triflorum

Sun, Anran and Pei, Xiaona and Zhang, Shikai and Han, Zhiming and Xie, Ying and Qu, Guanzheng and Hu, Xiaoqing and Tigabu, Mulualem and Zhao, Xiyang (2022). Metabolome and Transcriptome Analyses Unravels Molecular Mechanisms of Leaf Color Variation by Anthocyanidin Biosynthesis in Acer triflorum. Horticulturae. 8 :7 , 635
[Research article]

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Abstract

Acer triflorum Komarov is an important ornamental tree, and its seasonal change in leaf color is the most striking feature. However, the quantifications of anthocyanin and the mechanisms of leaf color change in this species remain unknown. Here, the combined analysis of metabolome and transcriptome was performed on green, orange, and red leaves. In total, 27 anthocyanin metabolites were detected and cyanidin 3-O-arabinoside, pelargonidin 3-O-glucoside, and peonidin 3-O-gluside were significantly correlated with the color development. Several structural genes in the anthocyanin biosynthesis process, such as chalcone synthase (CHS), flavanone 3-hydroxylase (F3H), and dihydroflavonol 4-reductase (DFR), were highly expressed in red leaves compared to green leaves. Most regulators (MYB, bHLH, and other classes of transcription factors) were also upregulated in red and orange leaves. In addition, 14 AtrMYBs including AtrMYB68, AtrMYB74, and AtrMYB35 showed strong interactions with the genes involved in anthocyanin biosynthesis, and, thus, could be further considered the hub regulators. The findings will facilitate genetic modification or selection for further improvement in ornamental qualities of A. triflorum.

Authors/Creators:Sun, Anran and Pei, Xiaona and Zhang, Shikai and Han, Zhiming and Xie, Ying and Qu, Guanzheng and Hu, Xiaoqing and Tigabu, Mulualem and Zhao, Xiyang
Title:Metabolome and Transcriptome Analyses Unravels Molecular Mechanisms of Leaf Color Variation by Anthocyanidin Biosynthesis in Acer triflorum
Series Name/Journal:Horticulturae
Year of publishing :2022
Volume:8
Number:7
Article number:635
Number of Pages:18
Publisher:MDPI
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Botany
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:anthocyanin, metabolomics, ornamental tree, structural genes, transcription factors, transcriptome
URN:NBN:urn:nbn:se:slu:epsilon-p-118603
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118603
Additional ID:
Type of IDID
DOI10.3390/horticulturae8070635
Web of Science (WoS)000832439000001
ID Code:28755
Faculty:S - Faculty of Forest Sciences
Department:(S) > Southern Swedish Forest Research Centre
Deposited By: SLUpub Connector
Deposited On:02 Sep 2022 12:41
Metadata Last Modified:02 Sep 2022 12:51

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