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Updated: Jul 9, 2026
06:18
Optimized Bone Sampling Protocols for the Retrieval of Ancient DNA from Archaeological Remains
Published on: November 30, 2021
A genetic legacy from archaic Homo.
John Hawks1, Gregory Cochran, Henry C Harpending
1Department of Anthropology, University of Wisconsin-Madison, Madison, WI 53706, USA. jhawks@wisc.edu
Trends in Genetics : TIG
|December 8, 2007
Summary
Ancient human populations likely interbred, contributing adaptive genes to modern humans. This genetic legacy, including genes like microcephalin, may have influenced human brain evolution and cognition.
Area of Science:
- Paleoanthropology
- Human Evolution
- Population Genetics
Background:
- The precise roles of ancient (archaic) human populations in the origin of modern humans remain unclear.
- Archaic and modern human groups coexisted and interacted, suggesting opportunities for interbreeding.
Purpose of the Study:
- To investigate the potential introgression of adaptive alleles from archaic human populations into modern humans.
- To explore the impact of archaic genetic contributions on human evolution, particularly in brain development.
Main Methods:
- Analysis of genetic loci candidates for introgression.
- Examination of genes such as microcephalin, which influences brain development.
Main Results:
- Adaptive alleles may have introgressed from archaic to modern human populations.
- Even rare interbreeding events can lead to the spread and fixation of advantageous introgressed alleles.
- The microcephalin gene is a candidate locus for archaic introgression.
Conclusions:
- Interbreeding between archaic and modern humans likely occurred and contributed to the modern human gene pool.
- The genetic legacy of archaic groups, such as Neanderthals, may have played a role in the evolution of human cognition.
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