Movie - Parental genomes: Difference between revisions

Revision as of 18:16, 19 October 2009

<Flowplayer height="325" width="320" autoplay="true">Parental_genome_mix_02.flv</Flowplayer>

Movie shows initial parental genomes mixing in early embryonic mitosis.

In the mouse zygote, separation of chromatin according to parental origin is preserved up to the four-cell embryo stage and then gradually disappears.

This movie shows that up to the 4 cell stage in the preimplantation embryo, the distribution of the 2 parental genomes remain segregated. After this stage, there is a gradual mixing of the 2 genomes with each cell division.

Male Sperm Genome - light green
Female Egg Genome - dark blue

Image frames kindly provided by Thomas Haaf.

Reference: W Mayer, A Smith, R Fundele, T Haaf Spatial separation of parental genomes in preimplantation mouse embryos. J Cell Biol. 2000 Feb 21;148(4):629-34. PMID: 10684246

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Cite this page: Hill, M.A. (2024, April 26) Embryology Movie - Parental genomes. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Movie_-_Parental_genomes

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 | valign="top" |Movie shows initial parental genomes mixing in early embryonic mitosis.
+In the mouse zygote, separation of chromatin according to parental origin is preserved up to the four-cell embryo stage and then gradually disappears.
-This movie shows that up to the 4 cell stage in the preimplantation embryo, the distribution of the 2 parental genomes remain segregated.
+This movie shows that up to the 4 cell stage in the preimplantation embryo, the distribution of the 2 parental genomes remain segregated. After this stage, there is a gradual mixing of the 2 genomes with each cell division.
+* Male Sperm Genome - light green
+* Female Egg Genome - dark blue
-After this stage, there is a gradual mixing of the 2 genomes with each cell division.
 Image frames kindly provided by Thomas Haaf.