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From: steven perkins <>
Subject: [DNA] Article: A new subclade of mtDNA haplogroup C1 found inicelanders: Evidence of pre-columbian contact?
Date: Sun, 14 Nov 2010 22:03:43 -0500


>From another list:

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http://onlinelibrary.wiley.com/doi/10.1002/ajpa.21419/abstract;jsessionid=622E174FADD46FD15FDC2F571CC1D5ED.d03t02

Am J Phys Anthropol. 2010 Nov 10. [Epub ahead of print]

A new subclade of mtDNA haplogroup C1 found in icelanders: Evidence of
pre-columbian contact?

Ebenesersdóttir SS, Sigurðsson A, Sánchez-Quinto F, Lalueza-Fox C,
Stefánsson K, Helgason A.

Abstract

Although most mtDNA lineages observed in contemporary Icelanders can
be traced to neighboring populations in the British Isles and
Scandinavia, one may have a more distant origin. This lineage belongs
to haplogroup C1, one of a handful that was involved in the settlement
of the Americas around 14,000 years ago. Contrary to an initial
assumption that this lineage was a recent arrival, preliminary
genealogical analyses revealed that the C1 lineage was present in the
Icelandic mtDNA pool at least 300 years ago. This raised the
intriguing possibility that the Icelandic C1 lineage could be traced
to Viking voyages to the Americas that commenced in the 10th century.
In an attempt to shed further light on the entry date of the C1
lineage into the Icelandic mtDNA pool and its geographical origin, we
used the deCODE Genetics genealogical database to identify additional
matrilineal ancestors that carry the C1 lineage and then sequenced the
complete mtDNA genome of 11 contemporary C1 carriers from four
different matrilines. Our results indicate a latest possible arrival
date in Iceland of just prior to 1700 and a likely arrival date
centuries earlier. Most surprisingly, we demonstrate that the
Icelandic C1 lineage does not belong to any of the four known Native
American (C1b, C1c, and C1d) or Asian (C1a) subclades of haplogroup
C1. Rather, it is presently the only known member of a new subclade,
C1e. While a Native American origin seems most likely for C1e, an
Asian or European origin cannot be ruled out. Am J Phys Anthropol,
2010. © 2010 Wiley-Liss, Inc.


--
Steven C. Perkins      
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Online Journal of Genetics and Genealogy
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