Metabolomic and Transcriptomic Analysis Reveals Flavonoid-Mediated Regulation of Seed Antioxidant Properties in Peanut Seed Vigor
文献类型： 外文期刊
作者： Gong, Fangping 1 ; Cao, Di 1 ; Li, Zhuo 1 ; Fan, Yi 1 ; Zhang, Yaru 1 ; Zhang, Lin 1 ; Zhao, Kai 1 ; Qiu, Ding 1 ; Li, Zhongfeng 1 ; Ren, Rui 1 ; Ma, Xingli 1 ; Zhang, Xingguo 1 ; Zhao, Kunkun 1 ; Yin, Dongmei 1 ;
作者机构： 1.Henan Agr Univ, Coll Agron & Peanut Funct Genome & Mol Breeding En, Zhengzhou 450002, Peoples R China
2.Henan Acad Agr Sci, Inst Crop Germplasm Resources, Zhengzhou 450002, Peoples R China
关键词： peanut; large seed; flavonoid; seed vigor; phytohormone
期刊名称：ANTIOXIDANTS （ 影响因子：6.6； 五年影响因子：7.3 ）
ISSN：
年卷期： 2024 年 13 卷 12 期
页码：
收录情况： SCI
摘要： Peanut (Arachis hypogaea L.) is an oilseed crop grown worldwide. Flavonoids have profound benefits for plant growth and development because of their powerful antioxidant properties. Seed vigor is an important indicator of seed quality. However, how flavonoids impact seed vigor formation in large-seed peanuts is still poorly understood. Here, we profiled flavonoids, phytohormones, and transcriptomes of developing seeds of large-seed peanut varieties with low (ZP06) and high (H8107) seed vigor. A total of 165 flavonoids were identified, 51 of which were differentially accumulated in ZP06 and H8107. Lower levels of dihydromyricetin (0.28 times) and hesperetin-7-O-glucoside (0.26 times) were observed in ZP06 seeds than in H8107. All flavonoid biosynthesis structural genes were down-regulated in ZP06. The different hormone levels found in ZP06 and H8107 seeds could be associated with the expression of flavonoid biosynthesis genes via MYB and bHLH transcription factors. Dihydromyricetin could relate to ZP06 ' s poor seed vigor by impacting its seed antioxidant properties. Thus, the presence of flavonoids in large-seed peanuts could contribute to their physiological quality and germination potential through controlling the accumulation of reactive oxygen species to improve seed antioxidant properties.
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