Can Blacks Be Linked to Tribes via DNA

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sojourner

Phoenix, AZ

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#1
Jun 5, 2007
 
Many companies are making big bucks claiming that they can pinpoint the origin of paying clientele. Is this true?

http://www.sciam.com/article.cfm...

Since: May 07

Gaithersburg, MD

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#2
Jun 5, 2007
 
sojourner wrote:
Many companies are making big bucks claiming that they can pinpoint the origin of paying clientele. Is this true?
http://www.sciam.com/article.cfm...
I think it is true. A year ago I was watching this program on PBS where certain black celebrities like Oprah, Chris Tucker, and Whoopi Goldberg were trying to find out which African tribe they descended from and Chris Tucker discovered that he was descended from this tribe(forgot the name) in Angola and decided to visit the country to learn more about their culture and heritage. So yeah, I believe that most companies can do that.
Jim

Egg Harbor Township, NJ

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#3
Jun 5, 2007
 
Yes and no.

The 2 ways they can trace DNA liniage today consists of following your father's line or your mother's line (X or Y chromosomes). Since genetic mutations occur every 3 or so generations and those mutations largely can be traced to a specific region of the world, they can do this.

But here is the thing. If a European male and an African female have a male child and that male child reproduces with a female of African ancestry and has a male and that male keeps reproducing with an African female until we get to you; Then your father's father' father etc. was of European ancestry. Meaning that if you are a male your Y chomosome traced back say 500 years would lead to somewhere in Europe.

The same thing could hold true for your mother's mother's mother etc.

Since African Americans are not actually African one or both genetic lines could trace back to Africa, Europe, North America, etc. You just don't know.

Since: Apr 07

Auburn Hills, MI

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#4
Jun 5, 2007
 
FYI...

www.africanancestry.com

I discussed this in The UJIMA Project Thread
Sinajuavi

Morgantown, WV

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#5
Jun 5, 2007
 
The science of genome analysis is being perfected constantly. It is possible to trace many genes to specific ethnic groups (tribes), such as Welsh, Russian, Yoruba, Xhosa, etc.

There are limitations and advantages of working with the gender-specific Y and mDNA sequences. Increasingly nuclear DNA is also being analyzed, which is not gender-linked, utilizing portions of it which are transmitted intact, portions whose mutations are understood, etc.

I wouldn't be surprised if some companies won't start telling you bogus stuff that they in fact have not determined. I mean, they could tell you, oh yes, you are a bit Irish, and we see Ashanti and Wolof and Fulani, and the client would be all happy, thinking they know who they are, and who's the wiser?

Like the companies selling heraldic shields to Euro-Americans. Oh sure, your surname was from some Norman knight. It all involves just a bit too many knights and nobles and too few peasants.

The use of DNA to trace human evolution, migrations and relationships is also being perfected. The initial waves of results were sucked up by scientists and the public, but now some of the original conclusions are being called into question. Many striking contradictions between morphological (fossil) and DNA evidence remain unresolved (e.g., why do no modern H. sapiens show any Neandertal DNA, yet early H. sapiens in Europe shows suggestions of Neandertal traits in their remains?).

There are charts online of the ancestral percentages of an ethnicity (tribe) as a whole, based on genetic sampling. These show, for example, that a particular group is 75% Saharan (L2), 20% Khoisan (L1) and 5% Ethiopiod (L3), or that the ethnicities with the highest proportion of Aryan ancestry are Ukrainians, Russians and Poles.

These genetic advancements are of course a boon for African Americans since they have the potential to restore some of the family history lost due to brutal circumstances. They are important to any people, because they can confirm or deny family myths about ancestry which in many cases do prove to be false.
sojourner

Tempe, AZ

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#6
Jun 6, 2007
 
detroitchild wrote:
FYI...
www.africanancestry.com
I discussed this in The UJIMA Project Thread
Missede the post,DC. My question has to do with the reliability of the research? Great site. Thanks.
sojourner

Tempe, AZ

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#7
Jun 6, 2007
 
Sinajuavi wrote:
The science of genome analysis is being perfected constantly. It is possible to trace many genes to specific ethnic groups (tribes), such as Welsh, Russian, Yoruba, Xhosa, etc.
There are limitations and advantages of working with the gender-specific Y and mDNA sequences. Increasingly nuclear DNA is also being analyzed, which is not gender-linked, utilizing portions of it which are transmitted intact, portions whose mutations are understood, etc.
I wouldn't be surprised if some companies won't start telling you bogus stuff that they in fact have not determined. I mean, they could tell you, oh yes, you are a bit Irish, and we see Ashanti and Wolof and Fulani, and the client would be all happy, thinking they know who they are, and who's the wiser?
Like the companies selling heraldic shields to Euro-Americans. Oh sure, your surname was from some Norman knight. It all involves just a bit too many knights and nobles and too few peasants.
The use of DNA to trace human evolution, migrations and relationships is also being perfected. The initial waves of results were sucked up by scientists and the public, but now some of the original conclusions are being called into question. Many striking contradictions between morphological (fossil) and DNA evidence remain unresolved (e.g., why do no modern H. sapiens show any Neandertal DNA, yet early H. sapiens in Europe shows suggestions of Neandertal traits in their remains?).
There are charts online of the ancestral percentages of an ethnicity (tribe) as a whole, based on genetic sampling. These show, for example, that a particular group is 75% Saharan (L2), 20% Khoisan (L1) and 5% Ethiopiod (L3), or that the ethnicities with the highest proportion of Aryan ancestry are Ukrainians, Russians and Poles.
These genetic advancements are of course a boon for African Americans since they have the potential to restore some of the family history lost due to brutal circumstances. They are important to any people, because they can confirm or deny family myths about ancestry which in many cases do prove to be false.
Interesting that those considered mostly Aryan are know as Slavs, which comes down through history as slaves. Truly ironic.
sojourner

Tempe, AZ

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#8
Jun 6, 2007
 
Seems to me that there is an issue about how acccurate the tests actually are. What are the chances that a subSaharan pygmy--such as myself--will test out as a progeny of the Prince of Wales.(Heart breaking thought if you are really a pygmy.)

"Those hoping to trace their ancestry to a particular African tribe are unlikely to find a perfect match, according to a new genetic study. Researchers report that mitochondrial DNA isolated from African-Americans matched up to distinct African ethnic groups in fewer than 10 percent of cases, based on a partial database of African DNA samples. Broader or more probabilistic ancestries are still possible, however."

Scientific American. See link intial post.

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