This very interesting and insightful article aligns with my own premise, which I’ve stated previously, that receiving the results of a genetic genealogy test is only the beginning of the journey for any individual interested in their own identity or genealogy.
Based on her research in this area, Dr. Nelson writes about the complex interpretation of the results of genetic genealogy testing by African-Americans and black British.Â Rather than completely altering their preconceived biographical narratives based on the results of testing, many people struggle to mesh genetic results with these narratives.Â From the abstract:
The Personal Genome Project (PGP) was established to analyze and publicly share the genomes and personal information of up to 100,000 volunteers in order to advance understanding of “genetic and environmental contributions to human traits and to improve our ability to diagnose, treat, and prevent illness.”Â In the first phase of the PGP, ten volunteers (the “First 10″ – see information about the First 10 here on my blog and at the PGP website) have had their DNA analyzed and have given their personal information.
Last month, George Church, the PGP’s principal investigator, reported that the project expected to publish data about the First 10 on its website in mid- to late October.Â Church might have meant genotype (i.e. sequencing) information, since some information about phenotype, health history, and medication has already been posted on the PGP website.Â There is information about each of the 10 participants, although there is currently no active link to their genetic information:
“Complete Genomics will not begin its service until the second quarter of next year. By then, the cost of competing technologies will no doubt have fallen further. Just last week, Applied Biosystems, a leading manufacturer, said it expected that its newest machine would allow a human genome to be sequenced for $10,000, although that includes only the cost of consumable materials, not labor or the machinery.”
Yesterday, RootsTelevision.com celebrated its two-year birthday.Â RootsTelevision was created by Megan Smolenyak Smolenyak and Marcy Brown in 2006, and currently contains programs in 25 different channels!Â You can read more about the site and about its creation at Megan’s Roots World.
You might remember that a few weeks ago I was interviewed by Dick Eastman for RootsTelevision.com, which was a terrific experience.Â And don’t forget, you can stay up-to-date on RootsTelevision.com’s DNA Channel right here at The Genetic Genealogist!
Last week, Randy Seaver of Genea-Musings posed a genetic genealogy question on his blog. I posted a possible solution in the comments there, but I am asked this question regularly and thought I would discuss it here.
At a recent meeting that Randy attended, a woman in the audience asked the speaker:
“I don’t know who my father is. He and my mother had relations in Naples, Italy back in the 1950’s and I was born. I have no siblings. My mother did not tell me his name and there is no father’s name on my birth certificate. Can DNA research help me?”
This particular situation is exceptionally challenging. If the child had been a boy, he would have his father’s Y-DNA and a decent chance at identifying his father’s surname (and thus could perhaps further elucidate his actual identity with the combination of DNA research and traditional genealogical research). If the unknown parent had been the mother, the daughter would possess the unknown parent’s mtDNA and a remote but possible chance of finding an mtDNA match and using traditional genealogical techniques to identify the mother.
The American Society of Human Genetics is having its 58th Annual Meeting in November.Â As I was looking through the meeting abstracts, I noticed that there were a number of abstracts that dealt with topics related to genetic genealogy.Â I thought some of you would be interested in getting an advance look at genetic genealogy research that will be publicly released and published over the next year or two.Â Although I didn’t include the whole abstracts for most of them, I did include a link for further investigation.Â (Note: I got this idea from Dienekes’ Anthropology Blog).
Interestingly, the first five abstracts all include researchers from the Sorenson Molecular Genealogy Foundation, showing how much the Foundation is providing to the genetic genealogy community.
“[A]ffordable whole-genome sequencing is getting closer and closer every day (my prediction – which is based solely on my own educated guess – is that I will be able to sequence my entire genome for $1,000 or less by the end of 2009).”
It was pretty bold at the time, and I’ve since wondered if I was too optimistic, but now comes news that at least one other person agrees with my prediction.Â Harvard professor and genetics researcher George Church – also principal investigator for the Personal Genome Project (PGP) – stated at two conferences, one last week and one this week, that by mid-October of 2008, 36-fold coverage of the human genome will be available for $5,000.Â Church went on to say that the $1,000 human genome will be available by the end of 2009.
I’ve been meaning to write about recent two papers, one in Current Biology and one in Nature, that attempt to identify and characterize a relationship between genetic sequence or SNP and geography. Amazingly, both papers found a very strong correlation between genetics and geography.
From a news article regarding the paper in Nature (note that I haven’t verified that the paper supports the statement; HT: Yann Klimentidis’ Weblog):
"The map was so accurate that when Novembre’s team placed a geopolitical map over their genetic "map", half of the genomes landed within 310 kilometres of their country of origin, while 90% fell within 700 km."
Although there are some caveats, for example in one of the papers all of an individual’s grandparents had to have similar geographic origins in order for the method to identify ancestry, these types of studies will continue to discover and refine the methods and findings. As Kambiz stated at Anthropology.net, "With higher resolution GeneChips, ideally full genomes, and larger samples, we’ll be able see much more accurate genetic-geographic separations of populations."
On September 5th at the 2008 Federation of Genealogical Societies Conference in Philadelphia, Pennsylvania, I was interviewed by Dick Eastman.Â In the interview we discuss my blog, DNA testing in general, and my free ebook, “I Have the Results of My Genetic Genealogy Test, Now What?” (which is available for download in the sidebar of the blog).
“Houston is also home to Family Tree DNA, a company that offers the same services as Oxford Ancestors. Last year, Harvard professor Henry Louis Gates joined forces with Family Tree DNA to help African Americans looking for answers about their past. AfricanDNA, the company Gates launched in November 2007, offers both genetic testing and genealogical tracing services for African Americans.”