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Natural variation in GmSW17 controls seed size in soybean

Author

Listed:
  • Shan Liang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zongbiao Duan

    (Yazhouwan National Laboratory)

  • Xuemei He

    (Chinese Academy of Sciences)

  • Xia Yang

    (Chinese Academy of Sciences)

  • Yaqin Yuan

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Qianjin Liang

    (Chinese Academy of Sciences)

  • Yi Pan

    (Chinese Academy of Sciences)

  • Guoan Zhou

    (Chinese Academy of Sciences)

  • Min Zhang

    (Chinese Academy of Sciences)

  • Shulin Liu

    (Chinese Academy of Sciences)

  • Zhixi Tian

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Seed size/weight plays an important role in determining crop yield, yet only few genes controlling seed size have been characterized in soybean. Here, we perform a genome-wide association study and identify a major quantitative trait locus (QTL), named GmSW17 (Seed Width 17), on chromosome 17 that determine soybean seed width/weight in natural population. GmSW17 encodes a ubiquitin-specific protease, an ortholog to UBP22, belonging to the ubiquitin-specific protease (USPs/UBPs) family. Further functional investigations reveal that GmSW17 interacts with GmSGF11 and GmENY2 to form a deubiquitinase (DUB) module, which influences H2Bub levels and negatively regulates the expression of GmDP-E2F-1, thereby inhibiting the G1-to-S transition. Population analysis demonstrates that GmSW17 undergo artificial selection during soybean domestication but has not been fixed in modern breeding. In summary, our study identifies a predominant gene related to soybean seed weight, providing potential advantages for high-yield breeding in soybean.

Suggested Citation

  • Shan Liang & Zongbiao Duan & Xuemei He & Xia Yang & Yaqin Yuan & Qianjin Liang & Yi Pan & Guoan Zhou & Min Zhang & Shulin Liu & Zhixi Tian, 2024. "Natural variation in GmSW17 controls seed size in soybean," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-51798-5
    DOI: 10.1038/s41467-024-51798-5
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