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by ggturner on 25 October 2013 - 12:10

http://www.sciencedaily.com/releases/2013/10/131023125616.htm

by EuroShepherd on 25 October 2013 - 15:10

Well! I didn't think it was possible, but perhaps there is something to the old wives' tale that the sire of a litter can affect the latter litters out of the same dam, even if those latter litters are by a different sire(s). Fascinating!

by Ibrahim on 25 October 2013 - 16:10

Thanks ggtuner for sharing.

Honestly speaking, that is just not possible and can not be the fact, it is a mistake in the study somewhere.

Ibrahim

by susie on 25 October 2013 - 16:10

by mollyandjack on 25 October 2013 - 16:10

I would not be so quick to discount this... :-) interesting article!

by Mindhunt on 25 October 2013 - 18:10

↵Chimerism or microchimerism as it is sometimes called is fascinating in humans. hmmmmm Below is an interesting article on Chimerism/microchimerism/tetragametic chimerism

Chimerism and tetragametic chimerism in humans: implications in autoimmunity, allorecognition and tolerance.

Yunis EJ, Zuniga J, Romero V, Yunis EJ.

Source

Department of Cancer Immunology and AIDS, Dana Farber Cancer Institute, 44 Binney St., Boston, MA 02115, USA. edmond_yunis@dfci.harvard.edu

by susie on 25 October 2013 - 19:10

There is a difference between chimerism and someone stating that "rests" of an earlier stud are able to influence a breeding in the future.
I don´t believe it.

by guddu on 25 October 2013 - 22:10

This article indicates a true finding...its not however a new finding. This has been known for several decades. Dont know, if it has any practical meaning, because all it means is that there are some cells floating around from a previous generation. Same thing happens in humans....eg fetal stem cells persist and circulate for years in the mother.

by ggturner on 26 October 2013 - 09:10

Here is another interesting article on chimera...animal-human hybrids. Think of the ethical implications!

http://news.nationalgeographic.com/news/2005/01/0125_050125_chimeras.html

by Hundmutter on 26 October 2013 - 11:10

Not entirely convinced about the finding that cells left 'floating around' in
the mother can be incorporated by the second growing baby / puppies.

And Y chromosomes come from the actual father of an embryo, so finding
them in the '2nd batch' isn't spectacular; only if there is proof positive
that those are some sort of hangover ones from the 1st father.

Anyway, wouldn't we be talking about such tiny low numbers of cells that
visual or interpretable genetic effects would be inconsequential ?

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Fascinating Article for Dog Breeders and Those Interested in Genetics - Page 1

Pedigree Database

Chimerism and tetragametic chimerism in humans: implications in autoimmunity, allorecognition and tolerance.

Source