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Artificial selection of mutations in two nearby genes gave rise to shattering resistance in soybean

Author

Listed:
  • Shuai Li

    (Purdue University
    Qingdao Agricultural University)

  • Weidong Wang

    (Purdue University
    Purdue University
    China Agricultural University)

  • Lianjun Sun

    (Purdue University
    China Agricultural University)

  • Hong Zhu

    (Qingdao Agricultural University)

  • Rui Hou

    (Qingdao Agricultural University)

  • Huiying Zhang

    (Qingdao Agricultural University)

  • Xuemin Tang

    (Qingdao Agricultural University)

  • Chancelor B. Clark

    (Purdue University
    Purdue University)

  • Stephen A. Swarm

    (University of Illinois
    Beck’s Hybrids)

  • Randall L. Nelson

    (University of Illinois)

  • Jianxin Ma

    (Purdue University
    Purdue University)

Abstract

Resistance to pod shattering is a key domestication-related trait selected for seed production in many crops. Here, we show that the transition from shattering in wild soybeans to shattering resistance in cultivated soybeans resulted from selection of mutations within the coding sequences of two nearby genes - Sh1 and Pdh1. Sh1 encodes a C2H2-like zinc finger transcription factor that promotes shattering by repressing SHAT1-5 expression, thereby reducing the secondary wall thickness of fiber cap cells in the abscission layers of pod sutures, while Pdh1 encodes a dirigent protein that orchestrates asymmetric lignin distribution in inner sclerenchyma, creating torsion in pod walls that facilitates shattering. Integration analyses of quantitative trait locus mapping, genome-wide association studies, and allele distribution in representative soybean germplasm suggest that these two genes are primary modulators underlying this domestication trait. Our study thus provides comprehensive understanding regarding the genetic, molecular, and cellular bases of shattering resistance in soybeans.

Suggested Citation

  • Shuai Li & Weidong Wang & Lianjun Sun & Hong Zhu & Rui Hou & Huiying Zhang & Xuemin Tang & Chancelor B. Clark & Stephen A. Swarm & Randall L. Nelson & Jianxin Ma, 2024. "Artificial selection of mutations in two nearby genes gave rise to shattering resistance in soybean," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-52044-8
    DOI: 10.1038/s41467-024-52044-8
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    References listed on IDEAS

    as
    1. Yang Dong & Xia Yang & Jing Liu & Bo-Han Wang & Bo-Ling Liu & Yin-Zheng Wang, 2014. "Pod shattering resistance associated with domestication is mediated by a NAC gene in soybean," Nature Communications, Nature, vol. 5(1), pages 1-11, May.
    2. Richard Katembo Kataliko & Paul M. Kimani & James W. Muthomi & Wothaya S. Wanderi & Florence M. Olubayo & Felister M. Nzuve, 2021. "Resistance and Correlation of Pod Shattering and Selected Agronomic Traits in Soybeans," Journal of Plant Studies, Canadian Center of Science and Education, vol. 8(2), pages 1-39, December.
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