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. 2017 Oct 12;99(3):482–503. doi: 10.1093/biolre/ioy134

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© The Author(s) 2018. Published by Oxford University Press on behalf of Society for the Study of Reproduction.

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Figure 1. — (Table III.) Cross-cut section of a seminiferous tubule in rats, in a point in which [spermatids] are in their second [(elongating)]developmental stage. 200/1. (Appears to be a stage XI–XIV tubule [Perey, Clermont, and Leblond Amer J Anat (1961)]; at these stages, the seminiferous epithelium would contain the following germ cells: rare type A spermatogonial stem cells, type A differentiating spermatogonia, leptotene (stage XI) and zygotene (stages XII–XIV) spermatocytes, pachytene (stages XI–XIII) and diplotene (XIV) spermatocytes, and condensing spermatids.) 1st g (g1°) – first stage [spermatogonia]; 1st s (s1°) – first stage [spermatocytes (leptotene & zygotene)]; 3rd s (s3°) – Third stage [spermatocytes (pachytene)].