Mouse Spermatozoa Mitochondria Movie

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Spermatozoa Mitochondria in Early Mouse Embryos

original figure images.

Male mammalian spermatozoa mitochondrial DNA (mtDNA) is generally eliminated before oocyte fertilisation, leaving only the maternal mtDNA to be inherited by the embryo.

This experiment shows that the distribution of spermatozoa mitochondria up to the morula stage of development in mice. These mitochondria do not appear to be eliminated by lysosomes and autophagy.


This animation shows live cell fluorescence imaging of sperm mitochondria (red) in early embryos.


Sperm mitochondria disaggregated and became restricted to only one blastomere during one-cell to four-cell stages.


Sperm mitochondria distributed in several cells after the eight-cell stage and could be detected until morula stages.


Scale bars: 20 µm.



Links: MP4 version | animated GIF | Week 1 Movies | Mitochondria | Spermatozoa Development | Fertilization | Mouse Development | Movies
1 Cell Stage

Spermatozoa mitochondria 1cell.jpg

2 Cell Stage

Spermatozoa mitochondria 2cell.jpg

4 Cell Stage

Spermatozoa mitochondria 4cell.jpg

8 Cell Stage

Spermatozoa mitochondria 8cell.jpg

Morula Stage

Spermatozoa mitochondria morula.jpg

Reference

<pubmed>23878233</pubmed>| Proc Natl Acad Sci U S A.

Copyright

Proceedings National Academy of Sciences (PNAS) Liberalization of PNAS copyright policy: Noncommercial use freely allowed Note original Author should be contacted for permission to reuse for Educational purposes. See also PNAS Author Rights and Permission FAQs

Cozzarelli NR, Fulton KR, Sullenberger DM. Liberalization of PNAS copyright policy: noncommercial use freely allowed. Proc Natl Acad Sci U S A. 2004 Aug 24;101(34):12399. PMID15314225 "Our guiding principle is that, while PNAS retains copyright, anyone can make noncommercial use of work in PNAS without asking our permission, provided that the original source is cited."

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Fig. 2. http://www.pnas.org/content/110/32/13038/F2.expansion.html Original figure images, cropped resized, relabeled and animated in photoshop.


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Cite this page: Hill, M.A. (2019, January 20) Embryology Mouse Spermatozoa Mitochondria Movie. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Mouse_Spermatozoa_Mitochondria_Movie

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G