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 23rd February 2015, 10:26 PM
PNGarrison PNGarrison is offline
H4a1a4a | R1-BY3322
 
Join Date: Dec 2013
Posts: 412
Inference of sex-specific expansion patterns in human populations from Y-chromosome p

http://www.ncbi.nlm.nih.gov/pubmed/25662940

Am J Phys Anthropol. 2015 Feb 7. doi: 10.1002/ajpa.22707. [Epub ahead of print]
Inference of sex-specific expansion patterns in human populations from Y-chromosome polymorphism.
Aimé C1, Heyer E, Austerlitz F.

Abstract
Studying the current distribution of genetic diversity in humans has important implications for our understanding of the history of our species. We analyzed a set of linked STR and SNP loci from the paternally inherited Y chromosome to infer the past demography of 55 African and Eurasian populations, using both the parametric and nonparametric coalescent-based methods implemented in the BEAST application. We inferred expansion events in most sedentary farmer populations, while we found constant effective population sizes for both nomadic hunter-gatherers and seminomadic herders. Our results differed, on several aspects, from previous results on mtDNA and autosomal markers. First, we found more recent expansion patterns in Eurasia than in Africa. This discrepancy, substantially stronger than the ones found with the other kind of markers, may result from a lower effective population size for men, which might have made male-transmitted markers more sensitive to the out-of-Africa bottleneck. Second, we found expansion signals only for sedentary farmers but not for nomadic herders in Central Asia, while these signals were found for both kind of populations in this area when using mtDNA or autosomal markers. Expansion signals in this area may result from spatial expansion processes and may have been erased for the Y chromosome among the herders because of restricted male gene flow. Am J Phys Anthropol, 2015. © 2015 Wiley Periodicals, Inc.
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
Genetic Characterization of Human Populations: From ABO to a Genetic Map of the Briti PNGarrison Scientific Papers 0 11th February 2015 10:09 PM
Coherent and incoherent inference in phylogeography and human evolution PNGarrison Scientific Papers 1 2nd February 2015 06:55 AM
Comparison of worldwide phonemic and genetic variation in human populations PNGarrison Scientific Papers 0 31st January 2015 01:02 AM
Chromosome Browser -- Is there any inference.. goldschlager Family Finder Basics 0 10th November 2014 07:37 PM
Where is the chart that tell which specific populations I match. Mendomaid Family Finder Advanced Topics 3 28th November 2011 01:28 PM


All times are GMT -5. The time now is 01:44 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 - 2017, Jelsoft Enterprises Ltd.