The Black Prince
12-26-2009, 07:29 PM
Prehistorical East-West admixture of maternal lineages in a 2,500-year-old population in Xinjiang
Abstract:
As an area of contact between Asia and Europe, Central Asia witnessed a scenario of complex cultural developments, extensive migratory movements, and biological admixture between West and East Eurasians.
However, the detanglement of this complexity of diversity requires an understanding of prehistoric contacts of the people from the West and the East on the Eurasia continent.
We demonstrated the presence of genetic admixture of West and East in a population of 35 inhabitants excavated in Gavaerk in southern Xinjiang and dated 2,800-2,100 years before present by analyzing their mitochondrial DNA variations. This result indicates that the initial contact of the East and the West Eurasians occurred further east than Central Asia as early as 2,500 years ago.
Source: Dienekes blog (http://dienekes.blogspot.com/2009/12/mtdna-evidence-for-caucasoid-mongoloid.html)
I quickly read the article and one of the results the authors mention is about the level of Europoid mtDNA:
The EE lineages included hgs A, B, F, and N9a of the major N trunk, as well as C, D, G, and Z of the macrohaplogroup M, which are prevalent in East Asian
populations. The WE lineages were composed of hgs HV, preHV, N1, J, T, U, K, I, W, and X, which are Europespecific.
The proportions of both WE and EE lineages (Table 2) were calculated by summing-up frequencies of hgs, respectively. The prehistoric population GAV was composed of 27% WE and 57% EE lineages, showing evident admixture of the West and the East Eurasians.
Quite interresting :), not meaning that Europoid or partly Europoid looking people are common nowadays in those areas, rather seldom (http://www.theapricity.com/forum/showthread.php?t=11875). But it once must have been commoner regarding an earlier research.
This earlier mtDNA research was from a cemetary of the Sampula population, dating between 217 BCE to 283 CE. This showed also a mixture of East-Asian and Ossetian/Iranian maternal material. But before this mtDNA research the Sampula cemetary was the subject of a physical anthropologic research:
Physical anthropology of Shao et al. revealed that the ancient human bones from Sampula exhibited primarily Mongoloid characteristics with certain European features, but Han et al. believed that Sampula populations are mainly of European character and actually are close to that of the Eastern Mediterranean type.
The mtDNA research of Sampula concluded with the remark:
In conclusion, the analysis of mtDNA haplogroup distribution showed that the ancient Sampula was a complex population of European and Asian, corresponding to the physical anthopology result of Shao et al.
source: Mitochondrial DNA analysis of ancient Sampula population in Xinjiang (2007). Progress in Natural Science, Vol. 17, No. 8, p.p. 927 - 933.
Abstract:
As an area of contact between Asia and Europe, Central Asia witnessed a scenario of complex cultural developments, extensive migratory movements, and biological admixture between West and East Eurasians.
However, the detanglement of this complexity of diversity requires an understanding of prehistoric contacts of the people from the West and the East on the Eurasia continent.
We demonstrated the presence of genetic admixture of West and East in a population of 35 inhabitants excavated in Gavaerk in southern Xinjiang and dated 2,800-2,100 years before present by analyzing their mitochondrial DNA variations. This result indicates that the initial contact of the East and the West Eurasians occurred further east than Central Asia as early as 2,500 years ago.
Source: Dienekes blog (http://dienekes.blogspot.com/2009/12/mtdna-evidence-for-caucasoid-mongoloid.html)
I quickly read the article and one of the results the authors mention is about the level of Europoid mtDNA:
The EE lineages included hgs A, B, F, and N9a of the major N trunk, as well as C, D, G, and Z of the macrohaplogroup M, which are prevalent in East Asian
populations. The WE lineages were composed of hgs HV, preHV, N1, J, T, U, K, I, W, and X, which are Europespecific.
The proportions of both WE and EE lineages (Table 2) were calculated by summing-up frequencies of hgs, respectively. The prehistoric population GAV was composed of 27% WE and 57% EE lineages, showing evident admixture of the West and the East Eurasians.
Quite interresting :), not meaning that Europoid or partly Europoid looking people are common nowadays in those areas, rather seldom (http://www.theapricity.com/forum/showthread.php?t=11875). But it once must have been commoner regarding an earlier research.
This earlier mtDNA research was from a cemetary of the Sampula population, dating between 217 BCE to 283 CE. This showed also a mixture of East-Asian and Ossetian/Iranian maternal material. But before this mtDNA research the Sampula cemetary was the subject of a physical anthropologic research:
Physical anthropology of Shao et al. revealed that the ancient human bones from Sampula exhibited primarily Mongoloid characteristics with certain European features, but Han et al. believed that Sampula populations are mainly of European character and actually are close to that of the Eastern Mediterranean type.
The mtDNA research of Sampula concluded with the remark:
In conclusion, the analysis of mtDNA haplogroup distribution showed that the ancient Sampula was a complex population of European and Asian, corresponding to the physical anthopology result of Shao et al.
source: Mitochondrial DNA analysis of ancient Sampula population in Xinjiang (2007). Progress in Natural Science, Vol. 17, No. 8, p.p. 927 - 933.