Ancient DNA study reveals South America’s first peoples

2-13-2019 quechuawomanandchild
Quechua Woman and child in Peru. Image credit: Minority Rights Group International

A cross-border, multi-disciplinary study has revealed new insights into the story of the earliest migrants into South America. Using powerful new techniques in DNA analysis, the group of researchers were able to unlock the genetic code of 49 ancient remains that live as many as 11,000 years ago to add another chapter to the story of how South America was peopled.

It had been known prior to this study that the earliest migrants into North America had arrived at the Bering strait from Asia around 20,000 years ago and into North America around 16,000 years ago. Individual remains on the continent also suggested that this original group split into two populations around 16,000 years ago in North America following that migration.

Related article:  How modern farming may be distorting our analysis of ancient human migration

It remains unclear as to what genetic admixture took place between these two populations– named ANC-A and ANC-B–but this study did show that the ANC-A population were likely the pioneers into South America as their genes were found in ancient remains throughout the continent. “Our paper suggests that all the samples that we have [from South America] have very limited amounts of ANC-B in them,” [researcher Nathan] Nakatsuka said.

Read full, original post: Who peopled South America? New ancient DNA study reveals continent’s first inhabitants

Outbreak Daily Digest
Biotech Facts & Fallacies
Talking Biotech
Genetics Unzipped
can you boost your immune system to prevent coronavirus spread x

Video: How to boost your immune system to guard against COVID and other illnesses

Scientists have recently developed ways to measure your immune age. Fortunately, it turns out your immune age can go down ...
mag insects image superjumbo v

Disaster interrupted: Which farming system better preserves insect populations: Organic or conventional?

A three-year run of fragmentary Armageddon-like studies had primed the journalism pumps and settled the media framing about the future ...
dead bee desolate city

Are we facing an ‘Insect Apocalypse’ caused by ‘intensive, industrial’ farming and agricultural chemicals? The media say yes; Science says ‘no’

The media call it the “Insect Apocalypse”. In the past three years, the phrase has become an accepted truth of ...
globalmethanebudget globalcarbonproject cropped x

Infographic: Cows cause climate change? Agriculture scientist says ‘belching bovines’ get too much blame

A recent interview by Caroline Stocks, a UK journalist who writes about food, agriculture and the environment, of air quality ...
organic hillside sweet corn x

Organic v conventional using GMOs: Which is the more sustainable farming?

Many consumers spend more for organic food to avoid genetically modified products in part because they believe that “industrial agriculture” ...
benjamin franklin x

Are most GMO safety studies funded by industry?

The assertion that biotech companies do the research and the government just signs off on it is false ...
gmo corn field x

Do GMO Bt (insect-resistant) crops pose a threat to human health or the environment?

Bt is a bacterium found organically in the soil. It is extremely effective in repelling or killing target insects but ...

Environmental Working Group: EWG challenges safety of GMOs, food pesticide residues

Known by some as the "Environmental Worrying Group," EWG lobbies for tighter GMO legislation and famously puts out annual "dirty dozen" list of fruits and ...
m hansen

Michael Hansen: Architect of Consumers Union ongoing anti-GMO campaign

Michael K. Hansen (born 1956) is thought by critics to be the prime mover behind the ongoing campaign against agricultural biotechnology at Consumer Reports. He is an ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
Optional. Mail on special occasions.
Send this to a friend