Featured Research

from universities, journals, and other organizations

Genetic Study Of Latin Americans Sheds Light On A Troubled History

Date:
March 24, 2008
Source:
Public Library of Science
Summary:
A recent molecular analysis of ancestry across Latin America has revealed a marked differentiation between regions and demonstrated a "genetic continuity" between pre-and post Columbian populations. This study provides the first broad description of how the genome diversity of populations from Latin America has been shaped by the colonial history of the region.

A recent molecular analysis of ancestry across Latin America has revealed a marked differentiation between regions and demonstrated a "genetic continuity" between pre-and post Columbian populations. This study provides the first broad description of how the genome diversity of populations from Latin America has been shaped by the colonial history of the region. The research involved the collaboration of teams at universities across Latin America, the US and Europe, led by Dr. Andres Ruiz-Linares from University College London.

The European colonization of the American continent, initiated in the late fifteenth century, brought with it not only social and political change, but also a dramatic shift from a Native American population to a largely mixed population. The genetic traces of this turbulent period in history are only now beginning to be explored with the molecular tools provided by the human genome project.

The researchers examined genetic markers across the human genome, in hundreds of individuals drawn from 13 mestizo populations found in seven Latin American countries. The picture obtained is that of a great variation in ancestry within and across regions, linked to and led by the colonization that occurred. It also appears that mostly Native and African women and European men contributed genes to the subsequent generations.

Interestingly, despite the fact that the European colonization occurred centuries ago, Latin Americans still preserve the genetic heritage of the local (in many cases now extinct) Native populations that mixed with the immigrants. This connection with the past has not been erased despite the current high mobility of individuals. Furthermore, it brings to life the "brotherhood" of each Latin American population to the Native populations that currently inhabit different countries.

In addition to providing a window into the past, the authors hope that these analyses will contribute to the design of studies aimed at identifying genes for diseases with different frequency in Native Americans and Europeans. Researchers have so far focused on populations from areas settled mainly by Native Americans and Europeans. The genomic diversity of populations across regions in the Americas with large African immigration is still mostly unexplored.

Journal reference: Wang S, Ray N, Rojas W, Parra MV, Bedoya G, et al. (2008) Geographic Patterns of Genome Admixture in Latin American Mestizos. PLoS Genet 4(3): e1000037. doi:10.1371/journal.pgen.1000037


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Cite This Page:

Public Library of Science. "Genetic Study Of Latin Americans Sheds Light On A Troubled History." ScienceDaily. ScienceDaily, 24 March 2008. <www.sciencedaily.com/releases/2008/03/080320205224.htm>.
Public Library of Science. (2008, March 24). Genetic Study Of Latin Americans Sheds Light On A Troubled History. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2008/03/080320205224.htm
Public Library of Science. "Genetic Study Of Latin Americans Sheds Light On A Troubled History." ScienceDaily. www.sciencedaily.com/releases/2008/03/080320205224.htm (accessed September 18, 2014).

Share This



More Fossils & Ruins News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Egypt Denies Claims Oldest Pyramid Damaged in Restoration

Egypt Denies Claims Oldest Pyramid Damaged in Restoration

AFP (Sep. 17, 2014) Egypt's antiquities minister denied Tuesday claims that the Djoser pyramid, the country's first, had been damaged during restoration work by a company accused of being unqualified to do such work. Duration: 00:56 Video provided by AFP
Powered by NewsLook.com
King Richard III's Painful Cause Of Death Revealed

King Richard III's Painful Cause Of Death Revealed

Newsy (Sep. 17, 2014) King Richard III died in the Battle of Bosworth in 1485, and now researchers examining his skull think they know how. Video provided by Newsy
Powered by NewsLook.com
Researchers Explore Shipwrecks Off Calif. Coast

Researchers Explore Shipwrecks Off Calif. Coast

AP (Sep. 16, 2014) Federal researchers are exploring more than a dozen underwater sites where they believe ships sank in the treacherous waters west of San Francisco in the decades following the Gold Rush. (Sept. 16) Video provided by AP
Powered by NewsLook.com
Museum Traces Fragments of Star-Spangled Banner

Museum Traces Fragments of Star-Spangled Banner

AP (Sep. 12, 2014) As the Star-Spangled Banner celebrates its bicentennial, Smithsonian curators are still uncovering fragments of the original flag that inspired Francis Scott Key's poem. (Sept. 12) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins