АвторТема: Ancient Mitochondrial DNA From Pre-historic Southeastern Europe  (Прочитано 964 раз)

0 Пользователей и 1 Гость просматривают эту тему.

Оффлайн ValikhanАвтор темы

  • Группа N
  • *
  • Сообщений: 2371
  • Страна: kz
  • Рейтинг +101/-1
  • Ysearch 63CDM. Mitosearch EEVT3
    • Turkic World
  • Y-ДНК: N1c1d1 - L1034 (L1032, L1033)
  • мтДНК: B5a1a
Ancient Mitochondrial DNA From Pre-historic Southeastern Europe
« : 27 Сентябрь 2011, 11:50:43 »
http://scholarworks.gvsu.edu/theses/5/
Цитировать
Ancient Mitochondrial DNA From Pre-historic Southeastern Europe: The Presence of East Eurasian Haplogroups Provides Evidence of Interactions with South Siberians Across the Central Asian Steppe Belt
Цитировать
Abstract

Studies of mitochondrial DNA (mtDNA) polymorphism have provided valuable insights for understanding patterns of human migration and interaction. The ability to recover ancient mtDNA sequence data from post-mortem bone and tissue samples allows us to view snapshots of historic gene pools firsthand, provided that great care is taken to prevent sample contamination. In this study, we analyzed the DNA sequence of the first hypervariable segment (HVSI) of the mtDNA control region, as well as a portion of the coding region, in 14 individuals from three collective burials from the Neolithic Dnieper-Donetz culture and three individuals from Bronze Age Kurgan burials, all located in modern-day Ukraine on the northern shores of the Black Sea (the North Pontic Region, or NPR). While most of our samples possessed mtDNA haplotypes that can be linked to European and Near Eastern populations, three Neolithic and all three Bronze Age individuals belonged to mtDNA haplogroup C, which is common in East Eurasian, particularly South Siberian, populations but exceedingly rare in Europe. Phylogeographic network analysis revealed that our samples are located at or near the ancestral node for haplogroup C and that derived lineages branching from the Neolithic samples were present in Bronze Age Kurgans. In light of the numerous examples of mtDNA admixture that can be found in both Europe and Siberia, it appears that the NPR and South Siberia are located at opposite ends of a genetic continuum established at some point prior to the Neolithic. This migration corridor may have been established during the Last Glacial Maximum due to extensive glaciation in northern Eurasia and a consequent aridization of western Asia. This implies the demographic history for the European gene pool is more complex than previously considered and also has significant implications regarding the origin of Kurgan populations.

Оффлайн ValikhanАвтор темы

  • Группа N
  • *
  • Сообщений: 2371
  • Страна: kz
  • Рейтинг +101/-1
  • Ysearch 63CDM. Mitosearch EEVT3
    • Turkic World
  • Y-ДНК: N1c1d1 - L1034 (L1032, L1033)
  • мтДНК: B5a1a
Re: Ancient Mitochondrial DNA From Pre-historic Southeastern Europe
« Ответ #1 : 27 Сентябрь 2011, 11:52:50 »
http://malyarchuk-bor.narod2.ru/

Цитировать
On the Origin of Mongoloid Component in the Mitochondrial Gene Pool of Slavs, B. A. Malyarchuk, M. A. Perkova, and M. V. Derenko

Цитировать
Concerning the population of Eastern Europe, it should be noted that the forest zone of Eastern Europe was the area of intense population admixture [35]. It seems likely, that formation of the complex of Mongoloid traits happened not later than in Upper Paleolithic. For this reason, it is suggested that East Siberian populations could have much time for migration to Eastern Europe [35]. The number of such migrations still remains unclear, since in the northwest of Eastern Europe Mongoloid component is detected 10000–8000 years ago; in Dnepr–Donetsk tribes, 7000–6000 years ago, and on the territory of Ivanovo oblast (Sakhtysh), 6000–5000 years ago [35, 36].

 

© 2007 Молекулярная Генеалогия (МолГен)

Внимание! Все сообщения отражают только мнения их авторов.
Все права на материалы принадлежат их авторам (владельцам) и сетевым изданиям, с которых они взяты.


Rambler's Top100