Ancient genomes from eastern Kazakhstan reveal dynamic genetic legacy of Inner Eurasian hunter-gatherers
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View abstract on PubMed
Summary
This summary is machine-generated.Ancient genomes reveal the genetic history of prehistoric Inner Asian hunter-gatherers. Early Neolithic and Bronze Age populations in Kazakhstan show distinct genetic profiles and admixture patterns.
Area Of Science
- Ancient DNA analysis
- Population genetics
- Archaeogenetics
Background
- Limited ancient genome data hinders understanding of Inner Asian prehistoric populations, particularly in eastern Kazakhstan.
- The region, where the Eurasian Steppe meets Inner Asian mountain forests, is crucial for understanding population dynamics.
- Previous studies have not fully elucidated the genetic landscape of hunter-gatherer and pastoralist groups in this area.
Purpose Of The Study
- To reconstruct the genetic history of Early Neolithic hunter-gatherers and Middle-Late Bronze Age pastoralists in eastern Kazakhstan.
- To investigate population structure, relationships, and admixture events in prehistoric Inner Asia.
- To understand the genetic legacy of ancient hunter-gatherers on subsequent pastoralist societies.
Main Methods
- Genome-wide ancient DNA sequencing of two Early Neolithic hunter-gatherers and 19 Middle-Late Bronze Age pastoralists from the Koken site.
- Analysis of genetic profiles and population affinities using population genetics methods.
- Comparison with existing ancient and modern genomic datasets from Eurasia.
Main Results
- Two Early Neolithic individuals, related as second-degree relatives, exhibited distinct genetic profiles.
- Early Neolithic individuals were most similar to later Neolithic populations in the Irtysh region.
- Middle-Late Bronze Age pastoralists showed genetic similarity to other steppe pastoralists, with evidence of admixture with local hunter-gatherers.
Conclusions
- Prehistoric Inner Asian hunter-gatherer populations displayed dynamic structures influenced by geography.
- The genetic makeup of Early Neolithic groups in eastern Kazakhstan differed from contemporaneous groups in nearby regions.
- Admixture events involving local hunter-gatherers shaped the genetic landscape of Bronze Age pastoralist populations in the region.
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