Tuesday, July 26, 2005

National Geographic's genographic atlas

National Geographic has started a human genome project...see this beautiful genographic atlas.

For those of you who have not been tested, check out the services they offer...comparatively reasonable prices.


Ancient migration patterns

This map, provided by Family Tree DNA, gives a pretty good image of the migration patterns of ancient populations from one continent to another.


Connection: Southern Siberia ~ Native American haplogroups origins

Mitochondrial DNA diversity in indigenous populations of the southern extent of Siberia, and the origins of Native American haplogroups.

Starikovskaya EB, Sukernik RI, Derbeneva OA, Volodko NV, Ruiz-Pesini E, Torroni A, Brown MD, Lott MT, Hosseini SH, Huoponen K, Wallace DC. Laboratory of Human Molecular Genetics, Institute of Cytology and Genetics, Siberian Division, Russian Academy of Sciences, Novosibirsk.

Summary In search of the ancestors of Native American mitochondrial DNA (mtDNA) haplogroups, we analyzed the mtDNA of 531 individuals from nine indigenous populations in Siberia. All mtDNAs were subjected to high-resolution RFLP analysis, sequencing of the control-region hypervariable segment I (HVS-I), and surveyed for additional polymorphic markers in the coding region. Furthermore, the mtDNAs selected according to haplogroup/subhaplogroup status were completely sequenced. Phylogenetic analyses of the resulting data, combined with those from previously published Siberian arctic and sub-arctic populations, revealed that remnants of the ancient Siberian gene pool are still evident in Siberian populations, suggesting that the founding haplotypes of the Native American A-D branches originated in different parts of Siberia.

Thus, lineage A complete sequences revealed in the Mansi of the Lower Ob and the Ket of the Lower Yenisei belong to A1, suggesting that A1 mtDNAs occasionally found in the remnants of hunting-gathering populations of northwestern and northern Siberia belonged to a common gene pool of the Siberian progenitors of Paleoindians. Moreover, lineage B1, which is the most closely related to the American B2, occurred in the Tubalar and Tuvan inhabiting the territory between the upper reaches of the Ob River in the west, to the Upper Yenisei region in the east.

Finally, the sequence variants of haplogroups C and D, which are most similar to Native American C1 and D1, were detected in the Ulchi of the Lower Amur. Overall, our data suggest that the immediate ancestors of the Siberian/Beringian migrants who gave rise to ancient (pre-Clovis)Paleoindians have a common origin with aboriginal people of the area now designated the Altai-Sayan Upland, as well as the Lower Amur/Sea of Okhotsk region.

"Ann. Human Genet. 2005 Jan; 69(Pt 1):67-89. "
PMID: 15638829 [PubMed - in process]

Sunday, July 24, 2005

A comeback !!!

Oh my, this seemed to be my orphaned site.

I have started this blog with the intention to eventually develop it into a clearinghouse of information about DNA-genetics, and specifically, for those of us who have tested as haplogroup C via our mothers' lineage.

I, for one, took the DNA test, basically out of curiosity, in my search for my ancestral past. Little did I expect to find that approximately 5 of my 8 great grandparents must have been either part American Indian or nearly full blooded.

What an awesome finding!

The only ancestor I have any kind of information about was my mother's grandfather who immigrated here from France in the second half of the 19th century.

Hopefully, we can get some sort of 'dialogue' going soon. I have accumulated a number of anthropological and DNA-genealogy studies, which I'll be posting this week, that deal with the different 'pockets' of haplogroup C throughout North and South America and areas of Eurasia.

Tuesday, June 28, 2005

Haplogroup C ~ what it means to us

A couple of years ago I decided to 'invest' some of the birthday money I'd received from my family and have my DNA tested.

The first test I sent for was a 'personal anthropology' test a.k.a. DNA Print. The results? The startling information that I am 60% Indo-European, i.e. Caucasian / 40% Native American.

Yikesss!!! what a surprise, for someone who had jumped on the genealogy bandwagon not too long before then and had come up practically empty handed.

My nuclear family is one of those whose answer to any questions relevant to ancestry is, "now, why are you interested in the dead? Who cares who those old people were?"

There may be a category in some social psychologist's handbook under "you know you come from a dysfunctional family when...." !!

What drove you to get tested? Were you aware of Native American ancestry in your conventional genealogical research?