Resequencing 250 Soybean Accessions: New Insights into Genes Associated with Agronomic Traits and Genetic Networks |
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| Authors: | Chunming Yang Jun Yan Shuqin Jiang Xia Li Haowei Min Xiangfeng Wang Dongyun Hao |
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| Affiliation: | 1. Key Laboratory for Agricultural Biotechnology of Jilin Provincial, Institute of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences (JAAS), Jilin 130033, China;2. Frontiers Science Center for Molecular Design Breeding, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, China;3. Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China;4. BioTrust Technology Inc., Beijing 100094, China |
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| Abstract: | The limited knowledge of genomic diversity and functional genes associated with the traits of soybean varieties has resulted in slow progress in breeding. In this study, we sequenced the genomes of 250 soybean landraces and cultivars from China, America, and Europe, and investigated their population structure, genetic diversity and architecture, and the selective sweep regions of these accessions. Five novel agronomically important genes were identified, and the effects of functional mutations in respective genes were examined. The candidate genes GSTT1, GL3, and GSTL3 associated with the isoflavone content, CKX3 associated with yield traits, and CYP85A2 associated with both architecture and yield traits were found. The phenotype–gene network analysis revealed that hub nodes play a crucial role in complex phenotypic associations. This study describes novel agronomic trait-associated genes and a complex genetic network, providing a valuable resource for future soybean molecular breeding. |
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| Keywords: | Agronomic trait GWAS Network Resequence Soybean |
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