GENEALOGY-DNA-L Archives

Archiver > GENEALOGY-DNA > 2010-11 > 1289878798


From: steven perkins <>
Subject: [DNA] Article: When Genetics and Genealogies Tell Different Stories—Maternal Lineages in Gaspesia [Gaspe Peninsula, Canada]
Date: Mon, 15 Nov 2010 22:39:58 -0500


This will be of interest to those searching for Native American ancestry

--------------------------------------------------------------------------------------------------------

http://onlinelibrary.wiley.com/doi/10.1111/j.1469-1809.2010.00617.x/abstract;jsessionid=78AE01A3F8E65F94AD203A00E37EDAAB.d03t02

When Genetics and Genealogies Tell Different Stories—Maternal Lineages
in Gaspesia

Claudia Moreau1,
Hélène Vézina2,3,4,
Michèle Jomphe2,3,4,
Ève-Marie Lavoie2,3,4,
Marie-Hélène Roy-Gagnon1,5,
Damian Labuda1,6,*

Article first published online: 8 NOV 2010

DOI: 10.1111/j.1469-1809.2010.00617.x

No claim to original US government works
Annals of Human Genetics © 2010 Blackwell Publishing Ltd/University
College London


Keywords:

mtDNA;
genealogy;
genetic ancestry;
admixture;
Native American;
Quebec population

Summary

Data from uniparentally inherited genetic systems were used to trace
evolution of human populations. Reconstruction of the past primarily
relies on variation in present-day populations, limiting historical
inference to lineages that are found among living subjects. Our
analysis of four population groups in the Gaspé Peninsula,
demonstrates how this may occasionally lead to erroneous
interpretations. Mitochondrial DNA analysis of Gaspesians revealed an
important admixture with Native Americans. The most likely scenario
links this admixture to French-Canadians from the St. Lawrence Valley
who moved to Gaspesia in the 19th century. However, in contrast to
genetic data, analysis of genealogical record shows that Native
American maternal lineages were brought to Gaspesia in the 18th
century by Acadians who settled on the south-western coast of the
peninsula. Intriguingly, within three generations, virtually all Métis
Acadian families separated from their nonadmixed relatives and moved
eastward mixing in with other Gaspesian groups, in which Native
American maternal lines are present in relatively high frequencies.
Over time, the carriers of these lines eventually lost memory of their
mixed Amerindian-Acadian origin. Our results show that a reliable
reconstruction of population history requires cross-verification of
different data sources for consistency, thus favouring
multidisciplinary approaches.

--
Steven C. Perkins      
http://stevencperkins.com/
Online Journal of Genetics and Genealogy
http://jgg-online.blogspot.com/
Steven C. Perkins' Genealogy Page
http://stevencperkins.com/genealogy.html
Steven C. Perkins' Genealogy Blog
http://scpgen.blogspot.com/


This thread: