Mouse spermatogenic clone development by stage
| The mouse spermatogenic cycle contains twelve stages (I–XII). Each stage is temporally unique, and the stages in the diagram represent the relative time each stage lasts in the mouse.
Each stage in the diagram is shown in cross-sectional, longitudinal and whole-mount perspectives (labelled in stage VII).
Three putative spermatogonial clones are highlighted in blue, red and green.
The dotted lines in the whole-mount perspective indicate the planes of the cross section and longitudinal section views.
Stage VII, the red cell is in the vertical line and therefore appears in the cross-sectional view. A green cell is in the horizontal line, so is observed in the longitudinal section view.
The development of three putative clones (blue, red and green) through one cycle of the seminiferous epithelium is shown.
- Links: Spermatozoa Development | Testis Development | Mouse Development
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- stage I - A4 (clone of 128) (blue); Aal-8 (red); Asingle and Apair (green)
- stage II - intermediate spermatogonia (clone of 256) (blue); Aal-8 (red); Asingle and Apair (green)
- stage III - intermediate spermatogonia (clone of 256) (blue); Aal-8 (red); Asingle and Apair (green)
- stage IV - Type B Spermatagonia (clone of 512) (blue); Aal-8 (red); Asingle and Apair (green)
- stage V - Type B Spermatagonia (clone of 512) (blue); Aal-8 (red); Asingle and Apair (green)
- stage VI - primary spermatocytes (lifting off the basement membrane) (blue); Aal-8 (red); Asingle and Apair (green).
- stage VII - Aal-16 (blue); Apair (red); Asingle (green)
- stage VIII - A1 (clone of 16) (blue); Apair (red); Asingle (green)
- stage IX - A2 (clone of 32) (blue); Apair (red); Asingle (green)
- stage X - A2 (clone of 32) (blue); Aal-4 (red); Apair (green)
- stage XI - A3 (clone of 64) (blue); Aal-4 (red); Asingle (x2) (green)
- stage XII - A3 (clone of 64) (blue); Aal-4 (red); Asingle (x2) (green)
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Reference
Phillips BT, Gassei K & Orwig KE. (2010). Spermatogonial stem cell regulation and spermatogenesis. Philos. Trans. R. Soc. Lond., B, Biol. Sci. , 365, 1663-78. PMID: 20403877 DOI.
Copyright
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
http://royalsocietypublishing.org/open-access
Figure 1. altered in size and labelling.
Cite this page: Hill, M.A. (2024, April 27) Embryology Mouse spermatogenesis stage cartoon.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Mouse_spermatogenesis_stage_cartoon.jpg
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- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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