Multiomics Analyses Reveal the Dual Role of Flavonoids in Pigmentation and Abiotic Stress Tolerance of Soybean Seeds

文献类型： 外文期刊

第一作者： Jiang, Ling

作者： Jiang, Ling;Yang, Xiaofeng;Gao, Xiewang;Huang, Shan;Zhu, Jianyu;Zhou, Hong;Li, Xiaohong;Gu, Xiaoyan;Jiang, Ling;Huang, Yong;Xiao, Mu;Gao, Xiewang;Yang, Hui;Zhou, Hongming;Liang, Zeya;Yang, Antong;Xiao, Mu;Ma, Shumei;Huang, Yong;Xiao, Mu;Huang, Yong

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关键词： soybean; seedcoat color; abiotic stress; multiomics; flavonoids

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）

ISSN： 0021-8561

年卷期： 2024 年 72 卷 6 期

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收录情况： SCI

摘要： The color of the seed coat has great diversity and is regarded as a biomarker of metabolic variations. Here we isolated a soybean variant (BLK) from a population of recombinant inbred lines with a black seed coat, while its sibling plants have yellow seed coats (YL). The BLK and YL plants showed no obvious differences in vegetative growth and seed weight. However, the BLK seeds had higher anthocyanins and flavonoids level and showed tolerance to various abiotic stresses including herbicide, oxidation, salt, and alkalinity during germination. Integrated metabolomic and transcriptomic analyses revealed that the upregulation of biosynthetic genes probably contributed to the overaccumulation of flavonoids in BLK seeds. The transient expression of those biosynthetic genes in soybean root hairs increased the levels of total flavonoids or anthocyanins. Our study revealed the molecular basis of flavonoid accumulation in soybean seeds, leveraging genetic engineering for both nutritious and stress-tolerant soybean germplasm.

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