Navigation Links
DNA Find in Oregon Is Oldest Yet Discovered in Americas
Date:4/3/2008

Paisley Caves reveal genetic material in excrement linking New World to Siberia, East Asia

THURSDAY, April 3 (HealthDay News) -- The oldest human DNA ever found in the Americas appears to show genetic links to Siberia or East Asia, according to an international team of scientists.

The mitochondrial DNA (genetic material passed on maternally) was discovered in 14,300-year-old dried human excrement, called coprolites, recovered from the Paisley Caves in Oregon. The series of eight caves are located about 220 miles southeast of Eugene on the eastern side of the Cascade Ranges.

The previous earliest evidence (in the form of tools) of humans in the Americas is the Clovis culture. The Paisley coprolites predate that by about 1,200 years, the scientists said.

Some of the coprolite samples also contained DNA similar to red fox, coyote or wolf. This suggests that these early people ate the animals or that the animals urinated on the human feces.

"The Paisley Cave material represents, to the best of my knowledge, the oldest human DNA obtained from the Americas," Eske Willerslev, director of the Centre for Ancient Genetics at the University of Copenhagen in Denmark, said in a prepared statement.

DNA testing indicated the feces belonged to people in haplogroups A2 and B2, which are common in Siberia and East Asia. It's not known exactly who the people living in the caves were, said Dennis L. Jenkins, a senior archeologist with the University of Oregon's Museum of Natural and Cultural History.

"All we're doing in this paper is identifying the haplogroups. We are not saying that these people were of a particular ethnic group. At this point, we know they most likely came from Siberia or Eastern Asia, and we know something about what they were eating, which is something we can learn from coprolites. We're talking about human signature," Jenkins said in a prepared statement.

"If our DNA evidence and radiocarbon dating hold up on additional coprolites that are now undergoing testing at multiple labs, then we have broken the Clovis sound barrier, if you will," he said. "If you are looking for the first people in North America, you are going to have to step back more than 1,000 years beyond Clovis to find them."

The research was published online April 3 in Science Express.

More information

The U.S. National Library of Medicine has more about DNA.



-- Robert Preidt



SOURCE: University of Oregon, news release, April 3, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Oregon study raises questions on synthetic progestins
2. Providence Health & Services - Oregon Region Powers Consumer Portal With Kryptiq Connect IQ
3. Oregon researchers discover a mechanism leading to cleft palate
4. Oregon researchers find trigger gene for muscle development
5. TriWest Contributes $30,000 to Oregon National Guard Fund
6. Tobacco Industry Puts Profits Before Kids in Defeating Oregon Ballot Initiative
7. Big Tobacco Spends Record $12 Million to Deceive Oregon Voters
8. New Report: Increasing Oregons Cigarette Tax Will Reduce Smoking, Save Lives and Save Money
9. The First Mega-Shelter Arrangement in Oregon Created for Major Disaster Response and Recovery
10. Details of Oregon Wine Regions First Luxury Inn, Spa Revealed at Groundbreaking Ceremony
11. Big Tobaccos Latest Dirty Trick: Deceiving Oregon Voters
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... AZ (PRWEB) , ... February 12, 2016 , ... Dignity ... Arizona General Hospital Emergency Room –Mesa. The new facility is licensed under ... , “Dr. Bingham is an excellent leader and will ensure our new freestanding ...
(Date:2/11/2016)... ... 2016 , ... According to an article published February 1st on ... supplement, is being recalled due to the discovery that it contains dangerous adulterants. According ... single supplement on the market proven to help people safety lose excess weight, such ...
(Date:2/11/2016)... ... February 11, 2016 , ... Registered nurses, licensed practical nurses and ... “Stroke Management: Time to Act, Time to Heal” on Thursday, February 25 from 9:00 ... The presenter is Vishal Chedda, president of ANSA Consultants, who will discuss clinical best ...
(Date:2/11/2016)... ... ... Journal of Pain Research has seen a significant increase in its ranking ... Scopus database (Elsevier B.V.) and is a measure of a journal's impact. It takes ... year period and also the importance of the journals where the citations came from. ...
(Date:2/11/2016)... (PRWEB) , ... February 11, 2016 , ... ... the healthcare industry, ranked among the top five firms in the “2015/2016 Best ... HIT Implementation Support and Staffing. KLAS is a research and insights firm on ...
Breaking Medicine News(10 mins):
(Date:2/11/2016)... F ast access to ... at the point of need   ... products and services, has launched a ClinicalKey mobile app that ... device. Elsevier designed the mobile app to allow users to select access ... Android and iOS formats for mobile phone and ...
(Date:2/11/2016)... , Feb. 11, 2016  Delcath Systems, ... and medical device company focused on oncology with ... metastatic liver cancers, announces the engagement of ... Company,s Global Medical Consultant. Dr. Birgerson will provide ... Company,s clinical operations team to help ensure timely ...
(Date:2/11/2016)... , Feb. 11, 2016 SI-BONE, ... use of the iFuse Implant System, a minimally ... certain disorders of the sacroiliac (SI) joint, announced ... cost benefits of MIS SI joint fusion for ... to degenerative sacroiliitis or SI joint disruption.  In ...
Breaking Medicine Technology: