Exploratory experiment designed to discover new patterns targeting Mlh3, Hormad1, Cul4a, Cnp in wild-type mice and knockout mice (Mlh3-/-, Hormad1-/-, Cul4a-/-, Cnp-/-). Primary outcome: Identification of gene regulatory programs and cell populations in normal and defective spermatogene
This experiment employed single-cell RNA sequencing to analyze a dataset of 57,600 cells from the testes of wild-type mice and mice with gonadal defects. The study used a novel model-based factor analysis method called SDA (Sparse Decomposition of Arrays) to jointly analyze mutant and wild-type cells. The researchers decomposed the data into 46 components to identify meiotic gene-regulatory programs, mutant-specific pathological processes, and technical effects. The analysis also included identification of DNA sequence motifs associated with individual components and discovery of rare macrophage populations in seminiferous tubules of mutant mice. This comprehensive approach provided insights into temporally varying modes of gene expression control during spermatogenesis and revealed immune system involvement in gonadal defects.
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