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Dissecting the development of bovine testicular tissue using spatial transcriptomics.

Haoyan Jin1,2, Yuan Ma1,2, Yaru Xie1,2

  • 1College of Animal Science and Technology, Ningxia University, Yinchuan, 750021, China.

Journal of Animal Science and Biotechnology
|February 4, 2026
PubMed
Summary

This study maps bovine testicular cell transcription using Stereo-seq, revealing dynamic changes during spermatogenesis. These findings enhance understanding of male germ cell development in large mammals.

Keywords:
BovineSpatial transcriptomeSpermatogenesis

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Area of Science:

  • Reproductive Biology
  • Genomics
  • Mammalian Development

Background:

  • Spermatogenesis is crucial for male fertility.
  • Single-cell sequencing offers insights into complex biological processes.
  • Bovine germ cell dynamic transcription remains understudied.

Purpose of the Study:

  • To construct the first spatial transcription map of bovine testicular tissue.
  • To characterize dynamic transcriptional changes during bovine spermatogenesis.
  • To identify cell subpopulations and intercellular communication.

Main Methods:

  • Utilized Stereo-seq technology for spatial transcriptomic analysis.
  • Analyzed testicular tissue from bovine subjects at two distinct ages.
  • Performed functional enrichment analysis on identified cell groups.

Main Results:

  • Generated a spatial transcription map of bovine testicular tissue.
  • Identified four germ cell and five somatic cell groups with distinct functions.
  • Characterized age-related transcriptional differences between calves and adult bulls.
  • Defined cell subpopulations, marker genes, and germ cell communications.

Conclusions:

  • First spatial transcription map of bovine testicular tissue established.
  • Systematically described dynamic transcriptional changes in spermatogenesis.
  • Provided foundational data for large mammal spermatogenesis research.
  • Elucidated transcriptional dynamics of male germ cell development.