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综合代谢组学和转录组学分析不同发育阶段韩城大红袍果皮(花椒)中类黄酮生物合成的调控机制。

Regulation mechanisms of flavonoids biosynthesis of Hancheng Dahongpao peels (Zanthoxylum bungeanum Maxim) at different development stages by integrated metabolomics and transcriptomics analysis.

机构信息

Northwest Agriculture and Forestry University, College of Science, Yangling, 712100, China.

Forestry and Grassland Bureau of Xunhua Salar autonomous county, Xunhua, 811100, China.

出版信息

BMC Plant Biol. 2022 May 21;22(1):251. doi: 10.1186/s12870-022-03642-5.

DOI:10.1186/s12870-022-03642-5
PMID:35596133
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9123719/
Abstract

BACKGROUND

Flavonoids have strong free radical scavenging and antioxidant capacity. The high abundance of flavonoids in Chinese prickly ash peels have many benefits to human health. In this study, 'Hancheng Dahongpao', a main cultivar, was taken as materials to investigate the flavonoids biosynthesis mechanism of Zanthoxylum bungeanum Maxim at three key development stages by integration of metabolomics and transcriptomics analysis.

RESULTS

A total of 19 differentially accumulated metabolites were identified, the key flavonoids compounds were kaempferol, quercetin and their glycoside derivatives, and two major anthocyanins (peonidin O-hexoside and peonidin 3-O-glucoside). 5 gene networks/modules including 15 important candidate genes were identified, which was highly correlated with flavonoids. Among these genes, ZM-163828 and ZM-184209 were strongly correlated with kaempferol and quercetin, and ZM-125833 and ZM-97481 were controlled the anthocyanins biosynthesis. Moreover, it was shown that MYB-ZM1, MYB-ZM3, MYB-ZM5, MYB-ZM6 and MYB-ZM7 coordinately controlled flavonoids accumulation through regulating the structural genes.

CONCLUSIONS

Generally, this study systematically revealed the flavonoids metabolic pathways and candidate genes involved in flavonoids biosynthesis and laid a foundation for the potential targets for the breeding of new valuable Chinese prickly ash cultivars.

摘要

背景

类黄酮具有很强的自由基清除和抗氧化能力。花椒果皮中类黄酮含量丰富,对人体健康有诸多益处。本研究以主要栽培品种“韩城大红袍”为材料,通过代谢组学和转录组学分析,综合研究了花椒果实发育三个关键时期类黄酮的生物合成机制。

结果

共鉴定出 19 个差异积累代谢物,关键类黄酮化合物为山奈酚、槲皮素及其糖苷衍生物,以及两种主要的花色苷(矢车菊素 O-己糖苷和矢车菊素 3-O-葡萄糖苷)。鉴定出包括 15 个重要候选基因在内的 5 个基因网络/模块,与类黄酮高度相关。其中,ZM-163828 和 ZM-184209 与山奈酚和槲皮素的相关性较强,ZM-125833 和 ZM-97481 控制花色苷的生物合成。此外,研究表明,MYB-ZM1、MYB-ZM3、MYB-ZM5、MYB-ZM6 和 MYB-ZM7 通过调节结构基因协同调控类黄酮的积累。

结论

本研究系统揭示了花椒果实发育过程中类黄酮代谢途径及参与类黄酮生物合成的候选基因,为花椒新的有价值品种的选育提供了潜在目标。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/62affa65c6c2/12870_2022_3642_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/c9f4eaa5eb30/12870_2022_3642_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/488e3ca16301/12870_2022_3642_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/e4888c4bd65b/12870_2022_3642_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/94759a51bfa9/12870_2022_3642_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/c9e2517577c5/12870_2022_3642_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/2c487f973238/12870_2022_3642_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/62affa65c6c2/12870_2022_3642_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/c9f4eaa5eb30/12870_2022_3642_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/488e3ca16301/12870_2022_3642_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/e4888c4bd65b/12870_2022_3642_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/94759a51bfa9/12870_2022_3642_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/c9e2517577c5/12870_2022_3642_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/2c487f973238/12870_2022_3642_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3247/9123719/62affa65c6c2/12870_2022_3642_Fig7_HTML.jpg

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