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Integrating Genome-Wide Association Study, Transcriptome and Metabolome Reveal Novel QTL and Candidate Genes That Control Protein Content in Soybean

文献类型： 外文期刊

作者： Zhao, Xunchao 1 ; Zhu, Hanhan 1 ; Liu, Fang 1 ; Wang, Jie 1 ; Zhou, Changjun 2 ; Yuan, Ming 3 ; Zhao, Xue 1 ; Li, Yongguang 1 ; Teng, Weili 1 ; Han, Yingpeng 1 ; Zhan, Yuhang 1 ;

作者机构： 1.Northeast Agr Univ, Key Lab Soybean Biol & Breeding Genet, Chinese Agr Minist, Key Lab Soybean Biol,Chinese Minist Educ, Harbin 150030, Peoples R China

2.Heilongjiang Acad Agr Sci, Daqing Branch, Daqing 163711, Peoples R China

3.Heilongjiang Acad Agr Sci, Qiqihar Branch, Qiqihar 161006, Peoples R China

关键词： soybean; genome-wide association study; transcriptome; metabolome; protein content

期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 8 期

页码：

收录情况： SCI

摘要： Protein content (PC) is crucial to the nutritional quality of soybean [Glycine max (L.) Merrill]. In this study, a total of 266 accessions were used to perform a genome-wide association study (GWAS) in three tested environments. A total of 23,131 high-quality SNP markers (MAF >= 0.02, missing data <= 10%) were identified. A total of 40 association signals were significantly associated with PC. Among them, five novel quantitative trait nucleotides (QTNs) were discovered, and another 32 QTNs were found to be overlapping with the genomic regions of known quantitative trait loci (QTL) related to soybean PC. Combined with GWAS, metabolome and transcriptome sequencing, 59 differentially expressed genes (DEGs) that might control the change in protein content were identified. Meantime, four commonly upregulated differentially abundant metabolites (DAMs) and 29 commonly downregulated DAMs were found. Remarkably, the soybean gene Glyma.08G136900, which is homologous with Arabidopsis hydroxyproline-rich glycoproteins (HRGPs), may play an important role in improving the PC. Additionally, Glyma.08G136900 was divided into two main haplotype in the tested accessions. The PC of haplotype 1 was significantly lower than that of haplotype 2. The results of this study provided insights into the genetic mechanisms regulating protein content in soybean.

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