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Europe's Ancestors: Cro-Magnon 28,000 Years Old Had DNA Like Modern Humans

Date:
July 16, 2008
Source:
Public Library of Science
Summary:
Some 40,000 years ago, Cro-Magnons -- the first people who had a skeleton that looked anatomically modern -- entered Europe, coming from Africa. Geneticists now show that a Cro-Magnoid individual who lived in Southern Italy 28,000 years ago was a modern European, genetically as well as anatomically. They conclude that the Neandertal people, who lived in Europe for nearly 300,000 years, are not the ancestors of modern Europeans.
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Tibia fragment. DNA was extracted from this fragment and from skull splinters, and all extracts yielded the same HVR I sequence.
Credit: David Caramelli et al. doi:10.1371/journal.pone.0002700.g001

Some 40,000 years ago, Cro-Magnons -- the first people who had a skeleton that looked anatomically modern -- entered Europe, coming from Africa. A group of geneticists, coordinated by Guido Barbujani and David Caramelli of the Universities of Ferrara and Florence, shows that a Cro-Magnoid individual who lived in Southern Italy 28,000 years ago was a modern European, genetically as well as anatomically.

The Cro-Magnoid people long coexisted in Europe with other humans, the Neandertals, whose anatomy and DNA were clearly different from ours. However, obtaining a reliable sequence of Cro-Magnoid DNA was technically challenging.

"The risk in the study of ancient individuals is to attribute to the fossil specimen the DNA left there by archaeologists or biologists who manipulated it," Barbujani says. "To avoid that, we followed all phases of the retrieval of the fossil bones and typed the DNA sequences of all people who had any contacts with them."

The researchers wrote in the newly published paper: "The Paglicci 23 individual carried a mtDNA sequence that is still common in Europe, and which radically differs from those of the almost contemporary Neandertals, demonstrating a genealogical continuity across 28,000 years, from Cro-Magnoid to modern Europeans."

The results demonstrate for the first time that the anatomical differences between Neandertals and Cro-Magnoids were associated with clear genetic differences. The Neandertal people, who lived in Europe for nearly 300,000 years, are not the ancestors of modern Europeans.


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


Journal Reference:

  1. Caramelli et al. A 28,000 Years Old Cro-Magnon mtDNA Sequence Differs from All Potentially Contaminating Modern Sequences. PLoS One, 2008; 3 (7): e2700 DOI: 10.1371/journal.pone.0002700

Cite This Page:

Public Library of Science. "Europe's Ancestors: Cro-Magnon 28,000 Years Old Had DNA Like Modern Humans." ScienceDaily. ScienceDaily, 16 July 2008. <www.sciencedaily.com/releases/2008/07/080715204741.htm>.
Public Library of Science. (2008, July 16). Europe's Ancestors: Cro-Magnon 28,000 Years Old Had DNA Like Modern Humans. ScienceDaily. Retrieved May 29, 2015 from www.sciencedaily.com/releases/2008/07/080715204741.htm
Public Library of Science. "Europe's Ancestors: Cro-Magnon 28,000 Years Old Had DNA Like Modern Humans." ScienceDaily. www.sciencedaily.com/releases/2008/07/080715204741.htm (accessed May 29, 2015).

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