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Natural variation of Dt2 determines branching in soybean

Author

Listed:
  • Qianjin Liang

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Liyu Chen

    (Guangzhou University)

  • Xia Yang

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Hui Yang

    (Guangzhou University)

  • Shulin Liu

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Kun Kou

    (Guangzhou University)

  • Lei Fan

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Zhifang Zhang

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Zongbiao Duan

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Yaqin Yuan

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Shan Liang

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Yucheng Liu

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Xingtong Lu

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Guoan Zhou

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Min Zhang

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences)

  • Fanjiang Kong

    (Guangzhou University)

  • Zhixi Tian

    (Institute of Genetics and Developmental Biology, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Shoot branching is fundamentally important in determining soybean yield. Here, through genome-wide association study, we identify one predominant association locus on chromosome 18 that confers soybean branch number in the natural population. Further analyses determine that Dt2 is the corresponding gene and the natural variations in Dt2 result in significant differential transcriptional levels between the two major haplotypes. Functional characterization reveals that Dt2 interacts with GmAgl22 and GmSoc1a to physically bind to the promoters of GmAp1a and GmAp1d and to activate their transcription. Population genetic investigation show that the genetic differentiation of Dt2 display significant geographic structure. Our study provides a predominant gene for soybean branch number and may facilitate the breeding of high-yield soybean varieties.

Suggested Citation

  • Qianjin Liang & Liyu Chen & Xia Yang & Hui Yang & Shulin Liu & Kun Kou & Lei Fan & Zhifang Zhang & Zongbiao Duan & Yaqin Yuan & Shan Liang & Yucheng Liu & Xingtong Lu & Guoan Zhou & Min Zhang & Fanjia, 2022. "Natural variation of Dt2 determines branching in soybean," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34153-4
    DOI: 10.1038/s41467-022-34153-4
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    References listed on IDEAS

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    1. Lin Zhang & Hong Yu & Bin Ma & Guifu Liu & Jianjun Wang & Junmin Wang & Rongcun Gao & Jinjun Li & Jiyun Liu & Jing Xu & Yingying Zhang & Qun Li & Xuehui Huang & Jianlong Xu & Jianming Li & Qian Qian &, 2017. "A natural tandem array alleviates epigenetic repression of IPA1 and leads to superior yielding rice," Nature Communications, Nature, vol. 8(1), pages 1-10, April.
    2. Xin Wei & Kunyan Liu & Yanxin Zhang & Qi Feng & Linhai Wang & Yan Zhao & Donghua Li & Qiang Zhao & Xiaodong Zhu & Xiaofeng Zhu & Wenjun Li & Danlin Fan & Yuan Gao & Yiqi Lu & Xianmei Zhang & Xiumei Ta, 2015. "Genetic discovery for oil production and quality in sesame," Nature Communications, Nature, vol. 6(1), pages 1-10, December.
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