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Genetic Divergence and Functional Significance of Bioactive Compounds in Rice and Barley: Implications for Biofortification and Human Health

文献类型： 外文期刊

作者： Elshamey, Essam 1 ; Yang, Jiazhen 1 ; Yang, Xiaomeng 1 ; Hasan, Md. Mahmudul 1 ; Yang, Tao 1 ; Zeng, Yawen 1 ;

作者机构： 1.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Inst, Kunming 650205, Peoples R China

2.Agr Res Ctr, Field Crops Res Inst, Rice Res Dept, Cairo 12619, Egypt

关键词： GABA; resistant starch; alkaloids; rice; barley; QTL mapping; biofortification; health benefits

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2025 年 26 卷 15 期

页码：

收录情况： SCI

摘要： The functional components in cereals (rice and barley), such as gamma-aminobutyric acid (GABA), resistant starch (RS), and alkaloids, play crucial roles in human health, offering benefits such as improved cardiovascular function, enhanced gut microbiota, and potential anticancer properties. Rice (Oryza sativa) and barley (Hordeum vulgare) are key dietary staples with distinct genetic architectures influencing the biosynthesis and accumulation of these bioactive compounds. In this study, we explore the interaction and divergence of gene loci associated with GABA, RS, and alkaloid pathways in rice and barley, leveraging comparative genomics to identify conserved and species-specific regulatory mechanisms. We highlight key quantitative trait loci (QTLs) and candidate genes, such as GAD (glutamate decarboxylase) for GABA synthesis, SSIIa and GBSS for RS formation, and alkaloid biosynthesis genes including CYP80G2. Additionally, we discuss the health implications of these functional components, including their roles in reducing hypertension, managing diabetes, and exhibiting neuroprotective effects. Understanding the genetic differences between rice and barley in accumulating these compounds can guide biofortification strategies to enhance nutritional quality in cereal crops, ultimately benefiting human health and dietary outcomes.

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