Key Genes and Molecular Mechanism Investigation in the Synthesis of Maize Quercetin Based on SNP and Bioinformatics Analysis
文献类型： 外文期刊
作者： Li, W-Z 1 ; Zhang, M. 2 ; Huang, Y-M 3 ; Li, W-H 1 ; Wang, L. 2 ;
作者机构： 1.Shihezi Univ, Key Lab Oasis Ecoagr Xinjiang Bingtuan, Coll Agron, Shihezi 832003, Xinjiang, Peoples R China
2.Minist Agr, CAAS Key Lab Agr Genom Beijing, Biotechnol Res Inst, Beijing 100081, Peoples R China
3.Pingdingshan Acad Agr Sci, Sci Res Dept, Pingdingshan 467000, Henan, Peoples R China
关键词： Zea mays; quercetin; genome-wide association study; single-nucleotide polymorphism; retinoblastoma 1; exopolygalacturonase 8
期刊名称：RUSSIAN JOURNAL OF PLANT PHYSIOLOGY （ 影响因子：1.481； 五年影响因子：1.608 ）
ISSN： 1021-4437
年卷期： 2021 年 68 卷 3 期
页码：
收录情况： SCI
摘要： This study aimed to reveal the potential genes and mechanisms involved in the biosynthesis of quercetin (QCT) in maize (Zea mays L.) through genome-wide association study (GWAS) and bioinformatics analysis, and provide a basis for further research on QCT. The content of QCT in 196 maize inbred lines was detected by LC-MS. The single-nucleotide polymorphism (SNPs) data from these samples were explored by Maize 55K SNP arrays, followed by population structure using fastStructure software and genome-wide association study (GWAS) analysis. Then, the SNP screening was performed with P < 1.00E-06 using Gramene software, followed by SNP annotation (150 KB up and downstream). The enrichment analysis was performed on all annotated genes. Finally, the protein-protein interaction (PPI) network analysis was performed to further reveal the relations among genes. A total of 12 SNPs were explored from original SNPs with P < 1.00E-06. The SNP annotation revealed several SNP-associated genes including Zm00001d036822 and Zm00001d007407. These genes were mainly enriched in metabolic pathway and functions like negative regulation of cell cycle phase transition. Finally, a PPI work was constructed by totally 34 annotated genes and 59 interactions. Zm00001d036822 and Zm00001d007407 might be novel candidate genes involved in the synthesis of QCT. Meanwhile, the metabolic pathway as well as negative regulation of cell cycle phase transition function might contribute to the biosynthesis of QCT.
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