Skip to comments.In Huge Shock, Mitochondrial DNA Can Be Inherited From Fathers
Posted on 11/26/2018 5:06:59 PM PST by BenLurkin
MtDNA exists separately from the rest of our DNA, inside the thousands of mitochondria within each cell, rather than the cell nucleus. It is so widely accepted as being from the mother's side it is sometimes known as the Eve Gene, the idea being that it can be traced back to some primeval mother of all living humans. Testing of mtDNA is used to identify maternal ancestry.
However, all that will have to change after Dr Shiyu Luo of the Cincinnati Children's Hospital Medical Center published a paper in the Proceedings of the National Academy of Sciences.
After testing of other members of the same family, and other families with mitochondrial diseases, Luo found that, while paternal inheritance is very rare, it has occurred at least 17 times in three tested families.
(Excerpt) Read more at iflscience.com ...
Prudent to await confirmation, but if true, I cannot help using the standard liberal/progressive science-illiterate phrase, “The science is settled. “
If so, how can this be?
Will what people have been told by the DNA testing companies (like FamilyTreeDNA and 23andMe) still be valid? Lots of people have been tested and told that they belong to a certain haplogroup, like H (45% of Europeans, I believe). If the latest report is correct, does that mean they are all in the group they were told they belong to, but that in a few cases the mtDNA was inherited from a paternal ancestor? Or could there be a case of someone inheriting mtDNA from both parents?
Gregor Mendel, what a fine mess you have gotten us into!
Don't say "cooking." Men are better cooks.
(AND I'M JUST KIDDING LOL)
...(AND I’M JUST KIDDING LOL)
I was waiting with bated breath for
Mother Nature to extinguish your pitiful existence.
You may yet live another day
Fathers can be influential tooBiologists have warned for some years that paternal mitochondria do penetrate the human egg and survive for several hours... Erika Hagelberg from the University of Cambridge, UK, and colleagues... were carrying out a study of mitochondrial DNAs from hundreds of people from Papua-New Guinea and the Melanesian islands in order to study the history of human migration into this region of the western Pacific... People from all three mitochondrial groups live on Nguna. And, in all three groups, Hagelberg's group found the same mutation, a mutation previously seen only in an individual from northern Europe, and nowhere else in Melanesia, or for that matter anywhere else in the world... Adam Eyre-Walker, Noel Smith and John Maynard Smith from the University of Sussex, Brighton, UK confirm this view with a mathematical analysis of the occurrence of the so-called 'homoplasies' that appear in human mitochondrial DNA... reanalysis of a selection of European and African mitochondrial DNA sequences by the Sussex researchers suggests that recombination is a far more likely cause of the homoplasies, as they find no evidence that these sites are particularly variable over all lineages.
by Eleanor LawrenceIs Eve older than we thought?"Two studies prove that the estimation of both when and where humanity first arose could be seriously flawed... The ruler scientists have been using is based on genetic changes in mitochondria, simple bacteria that live inside us and control the energy requirements of our cells. Mitochondria are passed from mother to daughter and their genes mutate at a set rate which can be estimated - so many mutations per 1,000 years... However, these calculations are based upon a major assumption which, according to Prof John Maynard Smith, from Sussex University, is 'simply wrong'. The idea that underpins this dating technique is that mitochondria, like some kinds of bacteria, do not have sex... Two groups of researchers, Prof Maynard Smith and colleagues Adam Eyre-Walker and Noel Smith, also from Sussex, and Dr Erika Hagelberg and colleagues from the University of Otago, New Zealand, have found that mitochondria do indeed have sex - which means that genes from both males and females is mixed and the DNA in their offspring is very different... Prof Maynard Smith and his colleagues stumbled over mitochondria having sex in the process of tracking the spread of bacterial resistance to meningitis... For the 'out-of-Africa' theory to hold water, the first population would have to have been very small. Sexually rampant mitochondria may put paid to this idea. Maynard Smith thinks that the origin of humanity is much older - may be twice as old - which, according to Eyre-Walker, means we are likely to have evolved in many different areas of the world and did not descend from Eve in Africa."
by Sanjida O'Connell 15th April 1999
Thanks BenLurkin. IFLS must be run by people whose egg split recently enough that they're not in high school.
what in the name of randolph scott is that ?
A “male mother”.
I remember being taught that the MtDNA had to come from the mother, and her blood, through the umbilical cord, provided the mitochondria. If Dad is contributing this material, how is his mitochondria introduced?
This might be a window into an unexplored region of the Human genome...
This is very big news and may shake endosymbiotic theory.
Interesting. Last updated: November 27, 2018.
Thanks, Fedora. Although Wikipedia is often suspect as a source, the referenced explanations are compelling.
The evolutionary poly-hypothesis was the original settled science before the propaganda term.
and He took a rib from Adam...
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