Ancient Proteins Reveal DNA Links Between Homo erectus and Denisovans
Protein in Homo erectus teeth suggests Denisovans gave us some of their DNA
Ars Technica
Image: Ars Technica
Recent research indicates that modern humans inherited DNA from Homo erectus through Denisovans, based on protein analysis from ancient teeth. This study enhances our understanding of human ancestry and interbreeding among ancient species.
- 01Modern humans inherited DNA from Homo erectus via Denisovans.
- 02Ancient proteins from teeth provide insights into human ancestry.
- 03Homo erectus spread from Africa over a million years ago.
- 04Research involved samples from teeth dating back 400,000 years.
- 05Protein analysis offers a method to study ancient species beyond DNA limits.
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Recent findings suggest that modern humans have inherited DNA from Homo erectus, an ancient species that migrated from Africa over a million years ago, through interbreeding with Denisovans. Researchers utilized protein analysis from ancient teeth, which are more durable than DNA, to uncover this connection. The study focused on Homo erectus teeth samples from three sites in China, dating back approximately 400,000 years. By analyzing the enamel proteins, researchers successfully isolated fragments from both Homo erectus and a Denisovan individual, revealing a genetic link that enhances our understanding of human ancestry and the complex interbreeding patterns that occurred as humans migrated across the globe. This research underscores the significance of proteins in studying ancient species, especially when DNA is no longer viable.
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