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review of scientific and news articles on dna testing and popular genetics

Hunter Gatherer DNA from the Don

Saturday, January 09, 2010
The successful extraction of ancient DNA has been a rare accomplishment in genetic circles until recently. In the journal Current Biology, a German-Russian team details how it was possible to avoid the common pitfalls of contamination with modern human DNA in the instance of a 30,000 year-old hunter gatherer's grave in Russia. Svante Paabo, from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, and colleagues used the latest DNA sequencing techniques to study genetic information from human remains unearthed in 1954 at Kostenki, Russia. According to a report by the BBC, the hunter gatherer's mitochondrial DNA type was U2. Haplogroup U is seen as a predecessor dominant type among Europeans before the arrival of agriculture and Middle Eastern culture about five to seven thousand years ago. It is hoped the new expertise will help unlock the secrets of other examples of ancient DNA.

Title and authors of the article:  A Complete mtDNA Genome of an Early Modern Human from Kostenki, Russia, by Johannes Krause, Adrian W. Briggs, Martin Kircher, Tomislav Maricic, Nicolas Zwyns, Anatoli Derevianko and Svante Pääbo 

Summary The recovery of DNA sequences from early modern humans (EMHs) could shed light on their interactions with archaic groups such as Neandertals and their relationships to current human populations. However, such experiments are highly problematic because present-day human DNA frequently contaminates bones. For example, in a recent study of mitochondrial (mt) DNA from Neolithic European skeletons, sequence variants were only taken as authentic if they were absent or rare in the present population, whereas others had to be discounted as possible contamination. This limits analysis to EMH individuals carrying rare sequences and thus yields a biased view of the ancient gene pool. Other approaches of identifying contaminating DNA, such as genotyping all individuals who have come into contact with a sample, restrict analyses to specimens where this is possible and do not exclude all possible sources of contamination. By studying mtDNA in Neandertal remains, where contamination and endogenous DNA can be distinguished by sequence, we show that fragmentation patterns and nucleotide misincorporations can be used to gauge authenticity of ancient DNA sequences. We use these features to determine a complete mtDNA sequence from a ∼30,000-year-old EMH from the Kostenki 14 site 

Kostenki 14 (Vladimir Gorodnianskiy)
Reconstruction of the hunter gatherer.  Courtesy BBC News.
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Bradshaw Foundation, Stephen Oppenheimer, INORA

Wednesday, December 30, 2009
Bradshaw Foundation
www.bradshawfoundation.com

A Phoenix business contact recently turned me on to the most fascinating website I have yet encountered devoted to prehistoric times and the migrations of humans. Named after the age-old and stunning Bradshaw rock art inscriptions in Australia, the Bradshaw Foundation focuses on rock art around the world and the brilliant discoveries of Oxford geneticist Stephen Oppenheimer. Its website even offers films and podcasts. Here is how the organization describes itself:

The Bradshaw Foundation until now has been discovering, documenting and preserving ancient rock art around the world. In October 2004 it received the Science & Technology Web Award 2004 (Anthropology and Paleontology) from Scientific American Magazine. The award coincides with the launch of the Bradshaw Foundation's latest development on its website: "The Journey of Mankind -The Peopling of the World". The Foundation has created an interactive map charting the global journey of modern humans over the last 160,000 years. It demonstrates the interactions of migration with climate over this period. Based on a synthesis of the mtDNA and Y chromosome evidence with archaeology; climatology and fossil study; Stephen Oppenheimer has tracked the routes and timing of migration, placing them in context with ancient rock art around the world.

Another delight I discovered at the Bradshaw Foundation's site was INORA, International Newsletter on Rock Art.

With 3 publications per year, in French and English, INORA presents an international forum on ancient rock art and associated areas of archaeology, paleaontology and anthropology.

Edited by Dr Jean Clottes, Former Director of the Chauvet Research Team, funded (or subsidized, or sponsored) by the Ministère de la Culture and the Département de l’Ariège, the newsletter presents the latest discoveries of rock art from around the world. It provides a platform for discussion and debate of current theories and controversies. It examines past, present and future documentation and dating techniques, and their interpretation. It provides online database sources for related literature. The bound copy contains photography, illustrations and bibliographies.

DNA Consultants customers and especially those who have taken the DNA Fingerprint Test will want to check out these resources for understanding human prehistory posthaste! The Bradshaw genetic journey is far more detailed, absorbing and convincing than National Geographic's National Genographic Project. 

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Newest Research Confirms Beachcomber Route to Asia out of Africa

Thursday, December 10, 2009
Other Companies Must Revise Their Human Migration Maps

Since Stephen Oppenheimer's The Real Eve suggested that the main out-of-Africa migration of humans proceeded across the mouth of the Gulf of Suez and around the coasts of Arabia, India and Southeast Asia (the "beachcomber route"), controversy has raged about the origin of Asians, whether they split off from the first out-of-Africa groups, sometimes called macro-haplogroup M, in the north central Asian highlands or the Middle East or elsewhere. A massive project spearheaded by the Chinese has put that question to rest. The 40-institution HUGO Pan-Asian SNP Consortium "strongly concludes the southern route made a more important contribution to East and Southeast Asian populations than the northern route," says Li Jin, a population geneticist at Fudan University in Shanghai, China. Jin was one of the lead authors of a study reported in Science, vol. 326, no. 5959, p. 1470, "SNP Study Supports Southern Migration Route To Asia," by Dennis Normile.

DNA Consultants has always followed Oppenheimer's model of the settlement of Asia, but other companies, including the National Geographic Genographic Project with over 200,000 customers purchasing their product, inform their customers differently. Most human migration maps displayed by DNA companies and the news media show Asians splitting off from Europeans and Native Americans in the northern latitudes of Central Asia and do not depict a southern "beachcomber" route at all.

Newly proven southern migration routes.

In July of this year, DNA Consultants discovered ethnic markers it released in its 18 Marker Ethnic Panel that prove a southern divide and origin for Asian populations as in the new study.

According to the Science report, "Anthropologists, ethnographers, and linguists have long struggled to understand the patchwork-quilt diversity of Asia.  Indonesia alone claims some 300 ethnic groups; the Philippines has 180 native languages and dialects. Where did they all come from?"

So the previously dominant theory of two major waves of migration from the Middle East must now yield to just one initial migration along the coastal route with populations moving north into East Asia from India and Southeast Asia (see map).

The new study is vindication for the Chinese genetics community, which has often been dismissed and rejected by European and American geneticists. Vincent Macaulay, co-author with Martin Richards of the seminal paper followed by most DNA testing companies, " Tracing European founder lineages in the Near Eastern mtDNA pool," (American Journal of Human Genetics, 67, 1251-1276), when asked about the new findings admitted that the southern coastal route now "seems very strong," as quoted in Science.






















Human Migration Map from DNA Consultants' 18 Marker Ethnic Panel.

The study used samples from more than 1900 individuals representing 73 populations and involved 93 researches at 40 institutions in 11 countries and regions in Asia. It was "conceived by Asians in Asia and executed, funded, and completed by an Asian consortium," said Edison Liu, executive director of the Genome Insitute of Singapore. Researchers screened each individual for more than 50,000 SNPs.


Comments

Sarah James commented on 11-Dec-2009 01:51 AM

I seem to recall that the debate about the beachcomber and other possible routes has been knocking around in anthopological circles for a while - at least since the 80s when I was studying anthropology in London. What's wonderful is that the beachcomber route has now been verified, but in the meantime one wonders how many NGGP clients, for example, may believe their ancestral migrations differed, and how widely this scientific breakthrough will be dissemintaed in the public media.

But well done DNA Consultants, and congratulations to the HUGO Pan-Asian SNP Consortium!

Dan commented on 11-Dec-2009 08:30 AM

Makes sense really. What would a regular person do other than follow the warm beach. It seems less likely that a person would go to a cold climate and say "aaahhh this is the place" unless the beach was already taken by someone else.

Nancy Sparks Morrison commented on 11-Dec-2009 03:01 PM

Don,
very interesting research. Makes sense. Explains a lot and glad you were able to realize it before most! :-) Good going!

I intend to do the rest of the DNA next year~ Have loved what you found for me so far!
Nancy

M. Moore commented on 15-Dec-2009 01:43 PM

While I can not extend my knowledge or understanding to the level of Sarah James, I can certainly agree with her comment. Very well written and explained. New discoveries or corrected history?

James R Carney commented on 23-Dec-2009 01:05 PM

This is a very interesting finding. As we have studied the coastal settlements in the south for quite sometime, your research has been fascinating and very plausible with the oral traditions of settlement of the Gulf Coast States in pre American (English Atlantic Coast Settlements). In this New DNA Study Science there is much to learn and most is theory. As students of any science, or academics, we must all keep an open mind and allow for discussion of all possibilities, otherwise we might miss the one great aha Moment. Your openness to research is very refreshing and rewarding.
Keep it up
DJ

Bookmakers commented on 30-Mar-2011 01:01 PM

Hello,I love reading through your blog, I wanted to leave a little comment to support you and wish you a good continuation. Wishing you the best of luck for all your blogging efforts


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Iceland's deCODE Defunct

Saturday, November 28, 2009
Icelandic genomics firm goes bankrupt

Nature 462/401 
23 November 2009

In a report by Erika Check Hayden, the journal Nature gloated that the innovative personal genomics company deCODE Genetics went out of business, leaving the disposition of valuable genetic data unclear. "After struggling financially for years, the genomics company deCODE, based in Reykjavik, Iceland, filed for bankruptcy on 16 November," wrote Hayden, who follows the genealogy-and-genetics business beat for Nature. "The question now is whether other companies looking to commercialize genomics will follow the same path." 

DNAPrint of Sarasota, Fla., went down that path last February without even an obit in scientific journals.

But according to Kari Stefansson, deCODE's CEO, the fate of the data never was in play since it belonged to individuals who had their DNA tested at their own expense with the service lab of deCODE. The lab, Islensk Erfdagreining, continues to operate today "under the same data and privacy protections as ever, rooted in the Icelandic community and within a tried and tested regulatory environment," wrote Stefansson in a comment on the online report by Nature. 

Such an accidentally-on-purpose misunderstanding is more than sloppy science journalism or bad science. It reveals the fundamental hostility of academic geneticists and related disciplines to commercializing or even popularizing DNA. Geneticists should stop thinking they are doing God's work. They should give up the illusion that the great generality of humankind can only understand, profit from and benefit from their work if they, the scientific intelligentsia, condescend to allow it and specify the conditions and goals of its use. 

Those on the payrolls of governments and public institutions have received so much money they think now they can be governors -- governors of the applications of their research.
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Interview with Donald Yates on Blog Talk Radio

Saturday, November 07, 2009
Listen to a broadcast about "anomalous DNA" in the Cherokee by principal investigator Donald N. Yates on Blog Talk Radio from October 29. Host, Rick Ozman of the Oopa Loopa Cafe. Length:  2 hours.
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Etruscans Again

Monday, November 02, 2009
When DNA Second-Guesses History . . . and Is Wrong

In a new article in the European Journal of Human Genetics (17/5:693), the enigmatic Etruscans of antiquity are again the subject of a DNA investigation. This time, the study, called "The Etruscan timeline:  A Recent Anatolian Connection," uses mitochondrial DNA to probe the ultimate origins of the people, who appeared on the stage of history in about the eighth century BCE. We know this time frame is fairly accurate because the Romans started their calendar in 753 BCE with the founding of Rome and dated all records A.U.C. (Ab Urbe Condita, "From the Founding of Rome"). Roman historians beginning with Ennius and Livy also recount how early Rome was conquered by the Etruscans and made subject to Etruscan kings for the first few centuries of its existence. 

That is why it is strange that the present article estimates "an [sic] historical time frame for the for the arrival of Anatolian lineages to Tuscany ranging from 1.1=/-0.1 to 2.3+/-0.4 kya B.P." Based, then, on the retrospective coalescence of DNA, this calculates the Etruscans' migration from an original homeland in Anatolia (modern Turkey) to as late as 1200 CE and as early as 390 BCE. What is going on? The Etruscans were clearly seated in Italy 450 years before 390 BCE, and by 1200 CE, they were long since gone as an entity. In fact, by the time of the emperor Claudius, who wrote a lost history of them around 1 CE, the Etruscans were already considered historical oddities and their language dead.

So are geneticists trying to rewrite history? I think it is a case of a fundamental fallacy in their work. Calculation of a time to coalescence is obviously limited by the validity and reliability of the sample, but it is also very often illusory. To take the example of Native Americans, just because geneticists arrive at a time to coalescence of 10,000 years before present, doesn't mean the place of coalescence has to be in Mongolia/Siberia, where they derive all Native Americans. It could just as well be in the Americas. DNA doesn't necessarily tell us anything about geography. But it is often pressed into service to prop up a theory about human migrations. Let us remember, though, that such constructs are just constructs, so DNA cannot be evidence, only confirmation of someone's historical or racial construct.

If one wishes to speak about evidence in a strict sense, however, it is interesting that the researchers (Francesca Brisighelli et al.) found, by mtDNA sequencing, a "novel autochthomous Tuscan brand of haplogroup U7." This can mean that the same U7 turning up elsewhere may be a sign of Etruscan movements.  
Comments

CINDY R commented on 14-Sep-2010 09:15 PM

I'm a U7a.

jojo commented on 01-Dec-2010 07:22 AM

can u shed some light for me? I did my dna and came out halogroup M from my mother. I thought this a mix up because she is 100% Tuscan Italian and we can trace her family on both sides to a single valley in Norther Tuscany. I sent in her dna for a double check and it came up the same again. Note: My mothers family (lineage) as well as a high proportion of inhabitants of this valley have fair skin and distinctive blue eyes. I read up on the history of one of the villages we come from and it was builta and inhabited as a 'buffer/lookout' outpost by the Romans. Maybe they filed it with slaves or ex-slaves but where does the figgin' New Guinea link of Halo-M come in and the blue eyes??? Jojo


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Anomalous Mitochondrial DNA Lineages in the Cherokee

Tuesday, October 13, 2009

Original Post:  

Egyptian, Greek, Phoenician and Hebrew Origins of Cherokee?

Donald N. Yates

submitted August 31, 2009

ABSTRACT. A sample of 52 individuals who purchased mitochondrial DNA testing to determine their female lineage was assembled after the fact from the customer files of DNA Consultants. All claim matrilineal descent from a Native American woman, usually named as Cherokee. The main criterion for inclusion in the study is that test subjects must have obtained results not placing them in the standard Native American haplogroups A, B, C or D. Hence the use of the word "anomalous" in the title of a paper prepared by chief investigator Donald N. Yates, "Anomalous Mitochondrial DNA Lineages in the Cherokee."

Most subjects reveal haplotypes that are unmatched anywhere else except among other participants, and there proves to be a high degree of interrelatedness and common ancestral lines. Haplogroup T emerges as the largest lineage, followed by U, X, J and H. Similar proportions of these haplogroups are noted in the populations of Egypt, Israel and other parts of the East Mediterranean (see below).

The Cherokee and Admixture. According to a 2007 report from the U.S. Census Bureau, the Cherokee are the largest tribal group today, with a population of 331,000 or 15% of all American Indians. Despite their numbers, though, the Cherokee have had few DNA studies conducted on them. I know of only three reports on Cherokee mitochondrial DNA. A total of 60 subjects are involved, all from Oklahoma. Possibly the reason the Cherokee are not recruited for more studies, I would suggest, stems from their being perceived as admixed in comparison with other Indians. Accordingly, they are deemed less worthy of study.

In the past, whenever a geneticist or anthropologist conducting a study of Native Americans has encountered an anomalous haplogroup, that is, a lineage that does not belong to one of the five generally accepted American Indian mitochondrial DNA haplogroups A, B, C, D and X, it has been rejected as an example of admixture and not included in the survey results. This is true of the two examples of H and one of J reported by Cherokee descendants by Schurr (2000:253). Schurr takes these exceptions to prove the rule and regards them as instances of European admixture. The governing logic of population geneticists seems to go as follows:

Lineage A, B, C, D and X are American Indian.
Therefore, all American Indians are lineage A, B, C, D and X.

The fallacy in such reasoning is apparent. It could be restated as: "All men are two-legged creatures; therefore since the skeleton we dug up has two legs, it is human." It might be a kangaroo.

"The geneticists always seem to cry 'post-Columbian admixture,'" says Stephen C. Jett, a geographer at the University of California at Davis, "but fail to take into account that there are no plausible post-Columbian sources for the particular genetic mix encountered."

"Anomalous Mitochondrial DNA Lineages in the Cherokee" concentrates on the "kangaroos"- documented or self-identifying Cherokee descendants whose haplotypes do not fit the current orthodoxy in American Indian population genetics. Here are some highlights, organized by haplogroup.

Haplogroup H. Although this quintessentially European haplogroup would seem to be the most likely suspect if admixture were responsible for the anomalous haplogroups, there are but four cases of it.

Haplogroup X. Haplogroup X is a latecomer to the "pantheon" of Native American haplogroups. Its relative absence in Mongolia and Siberia and a recently proven center of diffusion in Lebanon and Israel (Brown et al. 1998, Malhi and Smith 2002; Smith et al. 1999; Reidla 2003; Shlush et al. 2009) pose problems for the standard account of the peopling of the Americas. DNA Consultants Cherokee-descended customers include seven instances of haplogroup X. David E. Lewis (whose Cherokee name is Wayauwetsi) traces his unmatched X haplotype back to Seyinus, a Cherokee woman of the Wolf Clan born on or near the Qualla Boundary in North Carolina in 1862. Two cases represent descendants (unknown to each other, incidentally) of the Cherokee woman called Polly who was the namesake for the Qualla reservation (the sound p lacking in the Cherokee language and being rendered with qu).

Haplogroup J. Two other cases, both J's, are related to Polly, tracing their lines back to Betsy Walker, a Cherokee woman born about 1720 in Soco (One-Town). A descendant was the wife or paramour of Col. Will Thomas, the first chief and founder of the Eastern Band of Cherokee Indians located today on the Qualla Boundary. Views about J are still evolving, but it seems to have originated in present-day Lebanon approximately 10,000 years before present. It is a major Jewish female lineage (Thomas 2002).

Haplogroup U has never been reported in American Indians to my knowledge. In our sample it covers 13 cases or 25% of the total, second in frequency only to haplogroup T. One of the U's is Mary M. Garrabrant-Brower. She belongs to U5a1a* (all U5a1a not matched or assigned) but has no close matches anywhere. Her great-grandmother was Clarissa Green of the Cherokee Wolf Clan, born 1846. Mary's mother Mary M. Lounsbury maintained the Cherokee language and rituals. One of the cases of U2e* is my own. This line evidently arose from a Jewish Indian trader and a Cherokee woman. My fifth-great-grandmother was born about 1790 on the northern Georgia and southwestern North Carolina frontier and had a relationship with a trader named Enoch Jordan. The trader's male line descendants from his white family in North Carolina possess Y chromosomal J, a common Jewish type. Some Jordans, in fact, bear the Cohen Modal Haplotype that has been suggested to be the genetic signature of Old Testament priests (Thomas et al. 1998). Enoch Jordan was born about 1768 in Scotland of forbears from Russia or the Ukraine. My mother, Bessie Cooper, was a double descendant of Cherokee chief Black Fox and was born on Sand Mountain in northeastern Alabama near Black Fox's former seat at Creek Path (and who was Paint Clan). All U2e* cases appear to have in common the fact that there are underlying Melungeon, Cherokee and Jewish connections.

Haplogroup T. "Tara," as she was named by Brian Sykes, is believed to have originated in Mesopotamia approximately 10,000 to 12,000 years ago and to have moved northwards through the Caucasus and westwards from Anatolia into Europe. The closer one goes to its origin in the Fertile Crescent the more likely T is to be found in higher frequencies. The haplogroup includes slightly fewer than 10% of modern Europeans, but accounts for 28% of people in the DNA Consultants study. The great-great-grandmother of Linda Burckhalter was Sully Firebush, the daughter of a Cherokee chief who married Solomon Sutton, the stowaway son of a London merchant, in what would seem to be another variation of the "Jewish trader marries chief's daughter" pattern. Three T1*'s are perfectly matching individuals completely unknown to one another before testing who are clearly descended from the same woman. Two of them claim Melungeon ancestry.

The many interrelationships noted above reinforce the conclusion that this is a faithful cross-section of a population. No such mix could have resulted from post-1492 European gene flow into the Cherokee Nation. So where do our non-European, non-Indian-appearing elements come from? The level of haplogroup T in the Cherokee (26.9%) approximates the percentage for Egypt (25%), one of the only lands where T attains a major position among the various mitochondrial lineages. In Egypt, T is three times what it is in Europe. Haplogroup U in our sample is about the same as the Middle East in general. Its frequency is similar to that of Turkey and Greece. J has a frequency not unlike Europe (a little less than 10%). The only other place on earth where X is found at an elevated level apart from other American Indian groups like the Ojibwe is among the Druze in the Hills of Galilee in northern Israel and Lebanon. The work of Shlush et al. (2009) demonstrates that this region was in fact the center of the worldwide diffusion of haplogroup X.

Phoenicians. On the Y chromosome side of Shlush et al.'s study, male haplogroup K was found to have a relatively high frequency of 11% in the Galilee region (2008:2). K (renamed T in the revised YCC nomenclature) has long been suspected to be the genetic signature of the Phoenicians. A TV show by National Geographic appeared about a year ago titled Who Were the Phoenicians?, in which Spencer Wells of the National Genographic Project, unveiled this theory. Without a doubt it was the Phoenicians, whose name among themselves was Cana'ni or KHNAI 'Canaanites', not Phoenikoi 'red paint people' (Aubet 2001:9-12; cf. Oxford Classical Dictionary s.v. "Phoenicians" ), who are referenced by James Adair when he observes that "several old American towns are called Kan?ai," and suggests that the Conoy Indians of Pennsylvania and Maryland were Canaanites and their tribal name a corruption of the word Canaan. The Conoy Indians are the same Indians William Penn around 1700 described as resembling Italians, Jews and Greeks. By about 1735 they had dwindled to a "remnant of a nation, or subdivided tribe, of Indians," according to Adair (1930:56, 67, 68). One of the oldest Cherokee clans is called Red Paint Clan (Ani-wodi).

So do the two subclades of X and other haplogroups represent Old World and New World branches diverging from each other as long ago as 30,000 years, or do the Native American "anomalous" haplotypes come more recently (but not as late as Columbus) from the same source in the East Mediterranean? The answer probably depends on how open one is to new evidence and revisionary thinking. According to Jett, "The splits may have taken place well before transfer, with one only or both being transferred to a new place and then one dying out in the home area (and the other in the new area, if both were transferred)." The distinction, at any rate, is irrelevant to the Cherokee who exhibit these not-so-rare haplogroups, although to those denied authenticity on the basis of anthropologists' hardened ideas about the genetic composition of American Indians it is welcome vindication either way.

References
1. Adair, James (1930). Adair's History of the American Indians, ed. by Samuel Cole Williams, originally published London, 1775. Johnson City: Watauga.
2. Richards, Martin et al. (2000). "Tracing European Founder Lineages in the Near Eastern mtDNA Pool." American Journal of Human Genetics 67:1251-76. Supplementary Data. URL: http://www.stats.gla.ac.uk/~vincent/founder2000/index.html.
3. Schurr, Theodore G. (2000). "Mitochondrial DNA and the Peopling of the New World," American Scientist 88:246-53. 
4. Shlush, L. I. et al. (2009) "The Druze: A Population Genetic Refugium of the Near East." PLoS ONE 3(5): e2105. URL: http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2324201

When Objects Become Subjects 
(and Talk Back to Researchers)

Review
Paul Brodwin, "'Bioethics in Action' and Human Population Genetics Research"

Population genetics experts who lecture in the groves of academe or trudge through the jungles of the Amazon are not immune to racist bombshells and political dynamite. In 1991, Stanford geneticist Luigi Luca Cavalli-Sforza announced a project to study human genetic diversity. The ponderous monograph that issued forth in 1994 became as revered as it was unreadable. His History and Geography of Human Genes posited two main limbs in the human DNA tree, the African and non-African, with the latter branching off into Europeans (Caucasians) and Northeast Asians. Included in Northeast Asians were the so-called Amerindians. Amerinds were closest in genetic distance to Northern Turkic, Chukchi and other Arctic and Mongolian peoples.

Little did Cavalli-Sforza and his team expect to encounter any opposition to their benign project, much less withdrawal of funding by the U.S. government and United Nations, but this is exactly what happened. The genial professor was surprised one day by a letter from a Canadian human rights group called the Rural Advancement Foundation International. The group demanded he stop his work immediately. It accused the Human Genome Diversity Project of biopiracy, stealing DNA from unsuspecting indigenous people and mining it for valuable information pharmaceutical companies could use to make drugs Third World people could not afford.

Paul Brodwin's article published in 2005 in the journal Culture, Medicine and Psychiatry (29:145-78) reviewed this controversy, which had some positive repercussions in forcing researchers to rethink colonialist attitudes toward their subjects. But in the second case of "bioethics in action," Brodwin painted a much more ambiguous picture. It concerned the use of genetics by the ethnic group called Melungeons of Tennessee and Virginia to prove identity claims and press their ideas of special entitlements.

In the section of the article titled "The Reinvention of Melungeon Ethnicity," Brodwin chronicles the conflict between scientific genetics and the Melungeons' demand for collective recognition. Complicating this issue is that the academics were by no means certain among themselves about who or what Melungeons were from an anthropological perspective. A rancorous standoff between Virginia DeMarce and N. Brent Kennedy was matched by the tendentious nature of the Melungeons' own theories and assertions about themselves. Was there even such a thing as Melungeons or were they simply genealogical ghosts and lurid creations of popular journalism? Did they truly have some black and American Indian ancestry? Was the title only to apply to people in and around Newmans Ridge in Hancock County, Tennessee, or be extended to a wide range of persons of mixed ancestry like the Carolina Turks and Lumbee Indians? If the Melungeons went back before the arrival of Europeans, could they seek legal recognition as an indigenous American Indian tribe?

Questions abounded and it seemed all of them were murky, emotionally charged and political. Unlike the Human Genome Diversity battle, neither party seemed to gain any advantages in the free-for-all. There were apparently no lessons to be learned on either side. At the end of the day, everyone just gave up and went home, exhausted.

Brodwin obviously sympathizes with the forces of the Academy in all this. He throws his lot in with the geneticist Kevin Jones, who found "he did not control the goals of research or the interpretation of findings." The Melungeon fracas illustrated "the political and conceptual vulnerabilities of human population genetics." In my opinion, however, Brodwin missed the point. Whom do university professors and academic researchers serve, if not the public? They should rejoice that so many of the great unwashed (even in the hills and hollers of Tennessee) are engaged by and even interested in their research. And if they cannot achieve a satisfactory dialogue with their lay critics, whose fault is that? The debate should continue, not be swept under the rug of philosophical reflection. Whatever else they might be, Melungeons are people. As such, they should not be dismissed when they become intractable.

Introducing the DNA Fingerprint Plus

Since the disappearance of DNAPrint and AncestryByDNA from the market in February the demand for an autosomal test that would tell you whether you had Native American or other admixture and estimate what mix you had, has been unmet. While it is doubtful, for many reasons, there will ever be a test that can assign percentages to ethnicities, DNA Consultants has developed a panel of 18 markers potentially evident in a person's CODIS profile that have high probabilities for signaling different ethnic contributions. The Ethnic Panel has been added to the company's DNA Fingerprint Test in the DNA Fingerprint Plus.

As with all genetic markers, the fact that you do not have a marker does not mean that you lack that type of heredity, but its presence is a strong indicator of likelihood that you do possess certain genes. Because we receive one allele or unit of variation from one parent and one from another, and each parent possesses two themselves, one person can fail to inherit, say, a Native American marker but a sibling can have it.

DNA Consultants' chief investigator Dr. Donald Yates made the discoveries in July that laid the foundation for the new product, which was rolled out in early September. Like the CODIS test it is based on, the DNA Fingerprint Plus reflects your total ancestry, not just a male or female line. The 18 Marker Ethnic Panel costs $50.00 and there is no need to repeat any testing. It uses the results of your DNA Fingerprint Test.

The markers include checks for Native American, Ashkenazi Jewish, Northern European, Mediterranean, Sub-Saharan African, Asian and other types of probable contributions to your overall genetic legacy. They do not tell you how much of a given ancestry you may have or what line in your genealogy it might come from.

The way the Panel works is this: Depending on your ethnic mix, your score on a certain allele may fall near one end or the other on a probability scale. All these polarizations in the data correspond to major forks in the road of prehistoric human migrations. They support the conclusions of Oxford geneticist Stephen Oppenheimer and others that early humans left Africa in one or two migrations that gave birth to all the ethnic types in the rest of the world, from Australian Aborigines to Europeans. Native Americans and Europeans are closer, genetically speaking, than Native Americans are to Asians. One of the markers apparently reflects a divide between Asian ancestry on the one hand and European/Native American on the other. It is useful in distinguishing between Asian and Native American, two ethnicities that have a high degree of shared deep ancestry and are often otherwise mistaken for each other. Some ethnic markers can be shown by certain control measures to be a "false positive" and not indicative of that ancestry at all. They are also listed in the DNA Fingerprint Plus report.

Question or comment? Would you like to read the full version? Email me.

Comments

Anonymous commented on 23-Oct-2009 12:07 AM

This is most curious. After the Trail of Tears and the dispersal of the Cherokee, did not some live (and intermarry) with other Native American tribes? Then do some other Native American tribes have similar haplogroups? Or did not enough do this to make any difference? Or is this known?

Anonymous commented on 03-Dec-2009 04:59 AM

We must also remember many people of European ancestry claimed Cherokee or Native Ancestry to gain land or lived amongst the Cherokee or Aboriginal peoples and were included in some instances of false documentation. Sometimes we cannot tell who intermarried with or lived amongst Native people long ago. I don't buy it. This is a piece of the puzzle that just do not fit no matter how you turn it. You can't make it fit. I think some people need to accept the fact that they are not Native American, Never have and never will be. Unless the Top Experts in this field agree on this I just don't buy it.

Anonymous commented on 03-Dec-2009 02:31 PM

A valid point, but this reasoning overlooks the fact that there is no credible source for a disproportionate number of women of East Mediterranean ancestry in Indian lands during Spanish, French and English occupation. T, J and X are rare lineages among the Spanish, French and English. For the few T, J and X females in colonial European populations to throng together and seek out and marry Indian males doesn't make sense. Population frequency distribution of the anomalous types suggests a different time frame and geographical source for the influx.

dianne commented on 10-Nov-2010 07:04 PM

So I was studying genetic markers and to my surprise the Cherokee Indians are and have been excluded from the American Indian dna test as being Indian, they are the largest tribe of American Indians making up 15% of the Indian tribes and they come from Israeli and Egyptian ancestors 10,000 years ago read on, is this your finding?

So what was this following based on, did they too exclude the Cherokee Tribe? http://www.smithsonian.org/encyclopedia_si/nmnh/origin.htm

It looks like the Cherokee tribe does indeed share egyptian heritgage.

http://www.cohen-levi.org/jewish_genes_and_genealogy/the_dna_chain_of_tradition.htm

Kathy Crabtree commented on 30-Nov-2010 10:46 AM

How interesting! I just had my FGS done at FTDNA and came back a U5a1 with a rare deletion at 249. My maternal GG grandmother was a member of the Red Paint Clan and precticed medicine, so I was shocked to be a U5al. Glad to know I'm not the only one with well documented Cherokee heritage that belongs to a haplo other than the A,B,C,D,X. I think we still have a lot to learn and keep up the great work!

Page Lambert commented on 17-Dec-2010 12:54 PM

I took the 4-day Cherokee History Course taught by the tribe about a month ago and it was fascinating. My haplo group is J and my lineage goes back to Aaron Brock/Redbird (Tsisquaya) and Jesse Brock on my paternal maternal side. Also, Rebecca Howard and Mary Polly Prock (Ulunitaguledisgonihi).

Kate Ackelson commented on 07-Aug-2011 09:23 AM

Delighted to find this discussion. My mtDNA group is T. I had been told my 3rd greatgrandmother was Cherokee, and couldn't understand my DNA results until I read these articles. Thanks for shedding light on an increasingly interesting phenomenon.

David Harden commented on 27-Oct-2011 07:34 AM

I also had my mDNA done at FTDNA and it came out U5a1 with an insertion C at 315.1. My maternal line goes back to Hanging Maws mother who was born about 1745. Her maternal line is known back to Wetsiagehya (Shining Daughter b. 1607) who married Turtle's
Son and was mother of Amatoya Moytoy of Chota (b abt. 1635 and d. 1741). Her maternal line is the Sacred Sun Children line and all the matriarchs were considered Corn Girls (daughters of Selu). This line goes back to the Maya in 250 BC. The split with the
British line seems to have occurred between 30,000 and 3000 years ago.

warren young commented on 09-Dec-2011 05:59 PM

Is it really true that cherokee indians do indeed share egyptian heritage

Vanessa McAdams-Mahmoud commented on 16-Jan-2012 10:52 AM

I am an African-American whose great grandmother was Native American, adopted into our family at age 1 month, along with her brother who was 1 year old 1880, when her parents died. My mtdna states that I am of the haplo group x. just wanted to state that
Native American ancestry lives on in those of us of of African-American culture....even though we do not claim Native American culture as our own.

Aubri commented on 02-Apr-2012 02:41 AM

Seems like an obvious explanation is being overlooked. Why couldn't the middle eastern connection in some cherokees come from the spanish who raped and pillaged the cherokee? Spain was colonized by north africans.


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Science Is Only for Us Scientists, Don’t You Know

Tuesday, October 06, 2009
That’s the import of a trio of opinions in this week’s Nature magazine. One of them, “Genetics without Borders,” criticizes a “UK government scheme to establish nationality through DNA testing [as] scientifically flawed, ethically dubious and potentially damaging to science.” The “scheme” is a peer-reviewed program of the UK Border Agency to test whether some 100 asylum-seekers are Somali nationals. The testing uses a combination of SNPs, mitochondrial DNA and Y chromosome, plus other forensic means, to determine whether they are actually Somali or not. (That is, within a high degree of probability, since all inductive conclusions are probabilistic.)  

The editors of Nature fulminate against such methods. Yet these are the tools of the trade used by law enforcement officials and academic geneticists, to say nothing of commercial DNA testing companies. “The idea that genetic variability follows national boundaries is absurd,” they scoff. They are not impressed by the work of fellow scientists John Novembre et al., “Genes Mirror the Geography of Europe,” in Nature 456, 98–101; 2008), saying that the idea that genetic variability follows man-made national boundaries is absurd.” What is absurd is the idea that genetic variability is not molded and delineated by language, culture and historical events – the foundation of national boundaries. It seems to escape the opinion makers that Novembre et al. found that genetic patterns echoed linguistic divisions in Europe. This makes eminent sense in that courtship between most males and females is conducted in the same language. That means within the same nationalistic boundaries. 

Random “mating” of an exogamous nature as envisaged by them is not in the nature of humans. It may be a generalization that can be formed of evolution, which is judged in sweeping retrospective, but it is not true of living people at any given time, in any given land or country. Until the 20th century (and perhaps even today) most people marry someone of the same rather narrowly defined ethnicity as themselves. In fact, until the modern period, an Englishman was most likely to marry a woman whose house was situated only an easy walk away. His horizons --- and thus the eligible gene pool – was limited to a 24 mile square specifically labeled his “country.” 

Geneticists are wont to see human genetics in terms of geologic time, whereas the time depth and landscapes of history are more pertinent. The authors end by urging geneticists, “and indeed all scientists,” to nip the government’s “scheme” in the bud before the public finds out about it and an uprising ensues. This call to action seems to combine scientific cant with a patronizing view of the public. 

Lay persons, and sometimes people outside one’s narrow scientific specialty, just cannot be trusted to get anything quite right, can they?

Another day’s blog will address the other two articles in this week’s Nature, which exhibit similar mandarin attitudes. 

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Continuing Discontinuity

Thursday, October 01, 2009
Local Hunter-Gatherers Obstruct Incoming Farmers, Again

In the last post, we saw that there was discontinuity in the genetic record between medieval and contemporary Tuscans. Contradictions keep popping up whenever geneticists seek to show continuity in human populations. The human facts are not obedient to scientific models. The latest example is an article titled, “Genetic Discontinuity between Local Hunter-Gathers and Central Europe’s First Farmers,” appearing in Science 326/5949:137-40 in October. The authors are B. Bramanti, M. G. Thomas, W. Haak, M. Unterlaender, P. Jores, K. Tambets, I. Antanaitis-Jacobs, M. N. Haidle, R. Jankauskas, C.-J. Kind, F. Lueth, T. Terberger, J. Hiller, S. Matsumura, P. Forster and J. Burger.

ABSTRACT
After the domestication of animals and crops in the Near East some 11,000 years ago, farming had reached much of central Europe by 7500 years before the present. The extent to which these early European farmers were immigrants or descendants of resident hunter-gatherers who had adopted farming has been widely debated. We compared new mitochondrial DNA (mtDNA) sequences from late European hunter-gatherer skeletons with those from early farmers and from modern Europeans. We find large genetic differences between all three groups that cannot be explained by population continuity alone. Most (82%) of the ancient hunter-gatherers share mtDNA types that are relatively rare in central Europeans today. Together, these analyses provide persuasive evidence that the first farmers were not the descendants of local hunter-gatherers but immigrated into central Europe at the onset of the Neolithic.

It is not often that the august personages who collaborate in the field of population genetics admit to surprise, but this study exhibits a few wavering moments of – I don’t want to say “humility,” but perhaps slight uncertainty. The main intransigence concerns the large presence of mitochondrial haplogroup U in the skeletons analyzed from Central Europe, 13,400 to 2300 BCE. Whereas these types of U are relatively uncommon in Europe today, they were the dominant population then. Germany and surrounding regions were still very much in the Stone Age. Conversely, the Neolithic types H, T and J, which were supposed to be sweeping across the hinterlands and introducing agriculture from the Middle East (along with a characteristic pottery called Linearbandceramik, German for “linear band ceramics,” or LBK) were evidently thin on the ground and held their distance. Nowhere did the twain meet, for “we found no U5 or U4 types in that early farmer sample. Conversely, no N1a or H types were observed in our hunter-gatherer sample, confirming the genetic distinctiveness of these two ancient population samples.” In other words, even the entrenched types of populations living as neighbors, U and N1a, were not mixing with each other. 

Clinging stubbornly to the “classic model of European ancestry components (contrasting hunter-gatherers with early Neolithic farming pioneers),” the authors explain away the facts in simplistic fashion. With breath-taking generalizations, they assume, and then prove, that the “U types in our hunter-gatherer samples [and their not mixing with the other haplogroups]...extend beyond the local scale.” Do they forget that a study they wrote in the same journal four years ago found a predominance of N1a in skeletons in the same region and time? (see Wolfgang Haak, Peter Forster, Barbara Bramanti, Shuichi Matsumura, Guido Brandt, Marc Tänzer, Richard Villems, Colin Renfrew, Detlef Gronenborn, Kurt Werner Alt, and Joachim Burger, “Ancient DNA from the First European Farmers in 7500-Year-Old Neolithic Sites,” Science 11 November 2005: Vol. 310. no. 5750, pp. 1016 – 1018.)

As T.S. Eliot said, “My end is in my beginning.” Thus, the venture ends where it began, with the assumption that there is but one compelling story to be told in Europe for thousands of years after about 6,000 BCE, and that is the triumphal march of agriculturalists across the genetic landscape. With false humility, the authors conclude, “The extent to which modern Europeans are descended from incoming farmers, their hunter-gatherer forerunners, or later incoming groups remains unsolved.” But circular reasoning is circular reasoning even if it does not beget a strong conclusion.

All such studies presume a starlike and gradual diffusion of people. Hence, they expect to see broad patterns of continuity in time and space. Unfortunately, human history is fraught with disjoint as well as discontinuous phenomena. The ant farm models of population genetics cannot begin to comprehend the complexity of the past or do it justice.  

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