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Three-dimensional genome structures of single mammalian sperm

Author

Listed:
  • Heming Xu

    (Peking University
    Peking University)

  • Yi Chi

    (Peking University
    Peking University
    Peking University
    Peking University)

  • Changjian Yin

    (Shandong University
    Shandong University
    Ministry of Education
    Shandong Technology Innovation Center for Reproductive Health)

  • Cheng Li

    (Shandong University
    Shandong University
    Ministry of Education
    Shandong Technology Innovation Center for Reproductive Health)

  • Yujie Chen

    (Peking University)

  • Zhiyuan Liu

    (Peking University)

  • Xiaowen Liu

    (Peking University
    Peking University
    Peking University)

  • Hao Xie

    (Peking University)

  • Zi-Jiang Chen

    (Shandong University
    Shandong University
    Ministry of Education
    Shandong Technology Innovation Center for Reproductive Health)

  • Han Zhao

    (Shandong University
    Shandong University
    Ministry of Education
    Shandong Technology Innovation Center for Reproductive Health)

  • Keliang Wu

    (Shandong University
    Shandong University
    Ministry of Education
    Shandong Technology Innovation Center for Reproductive Health)

  • Shigang Zhao

    (Shandong University
    Shandong University
    Ministry of Education
    Shandong Technology Innovation Center for Reproductive Health)

  • Dong Xing

    (Peking University
    Peking University)

Abstract

The three-dimensional (3D) organization of chromosomes is crucial for packaging a large mammalian genome into a confined nucleus and ensuring proper nuclear functions in somatic cells. However, the packaging of the much more condensed sperm genome is challenging to study with traditional imaging or sequencing approaches. In this study, we develop an enhanced chromosome conformation capture assay, and resolve the 3D whole-genome structures of single mammalian sperm. The reconstructed genome structures accurately delineate the species-specific nuclear morphologies for both human and mouse sperm. We discover that sperm genomes are divided into chromosomal territories and A/B compartments, similarly to somatic cells. However, neither human nor mouse sperm chromosomes contain topologically associating domains or chromatin loops. These results suggest that the fine-scale chromosomal organization of mammalian sperm fundamentally differs from that of somatic cells. The discoveries and methods established in this work will be valuable for future studies of sperm related infertility.

Suggested Citation

  • Heming Xu & Yi Chi & Changjian Yin & Cheng Li & Yujie Chen & Zhiyuan Liu & Xiaowen Liu & Hao Xie & Zi-Jiang Chen & Han Zhao & Keliang Wu & Shigang Zhao & Dong Xing, 2025. "Three-dimensional genome structures of single mammalian sperm," Nature Communications, Nature, vol. 16(1), pages 1-14, December.
  • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-59055-z
    DOI: 10.1038/s41467-025-59055-z
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    References listed on IDEAS

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