Go Back   Family Tree DNA Forums > General Interest > Scientific Papers

Scientific Papers For talk of scientific papers on population genetics, archaeology, and anthropology related to DNA and personal ancestry testing.

Reply
 
Thread Tools Display Modes
  #1  
Old 6th December 2014, 02:48 AM
PNGarrison PNGarrison is offline
H4a1a4a | R1-BY3322
 
Join Date: Dec 2013
Posts: 412
Khoisan hunter-gatherers have been the largest population

NATURE COMMUNICATIONS | ARTICLE OPEN
Khoisan hunter-gatherers have been the largest population throughout most of modern-human demographic history
http://www.nature.com/ncomms/2014/14...comms6692.html
Nature Communications 5, Article number: 5692 doi:10.1038/ncomms6692
2014

Abstract• Introduction• Results• Discussion• Methods• Additional information• Accession codes• References• Acknowledgements• Author information• Supplementary information
The Khoisan people from Southern Africa maintained ancient lifestyles as hunter-gatherers or pastoralists up to modern times, though little else is known about their early history. Here we infer early demographic histories of modern humans using whole-genome sequences of five Khoisan individuals and one Bantu speaker. Comparison with a 420 K SNP data set from worldwide individuals demonstrates that two of the Khoisan genomes from the Ju/’hoansi population contain exclusive Khoisan ancestry. Coalescent analysis shows that the Khoisan and their ancestors have been the largest populations since their split with the non-Khoisan population ~100–150 kyr ago. In contrast, the ancestors of the non-Khoisan groups, including Bantu-speakers and non-Africans, experienced population declines after the split and lost more than half of their genetic diversity. Paleoclimate records indicate that the precipitation in southern Africa increased ~80–100 kyr ago while west-central Africa became drier. We hypothesize that these climate differences might be related to the divergent-ancient histories among human populations.
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
What percentage of original European hunter gatherer genes exist in Europe today? Hando DNA and Genealogy for Beginners 5 12th May 2014 12:04 AM
Unraveling the complex maternal history of Southern African Khoisan populations Rebekah Canada Scientific Papers 0 10th December 2013 03:51 PM
Native Americans related to European hunter-gatherers tomcat DNA and Genealogy for Beginners 10 1st December 2012 09:12 AM
Central European Farmers Not Descended From Local Hunter-Gatherers J Man DNA and Genealogy for Beginners 2 6th September 2009 09:17 PM
Largest DNA database ? CNT DNA and Genealogy for Beginners 5 13th June 2008 03:27 PM


All times are GMT -5. The time now is 09:11 PM.


Family Tree DNA - World Headquarters

1445 North Loop West, Suite 820
Houston, Texas 77008, USA

Phone: (713) 868-1438 | Fax: (832) 201-7147
Copyright 2001-2010 Genealogy by Genetics, Ltd.
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.