| Type | MGI:General | Description | at 8 weeks of age, testis histology showed abnormal structures of seminiferous tubules and fewer spermatogonia mRNA expression levels of several genes involved in spermatogenesis -- Rad23b, Adad1, Zfp35, Tsnaxip1, Spag16, Hmgb2, and Hook1 -- are significantly reduced in testes, indicating impaired spermatogenesis |
