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Ancient DNA (aDNA) is DNA isolated from ancient sources (typically specimens, but also environmental DNA). [ 1 ] [ 2 ] Due to degradation processes (including cross-linking , deamination and fragmentation ) [ 3 ] ancient DNA is more degraded in comparison with contemporary genetic material. [ 4 ]
Archaeogenetics is the study of ancient DNA using various molecular genetic methods and DNA resources. This form of genetic analysis can be applied to human, animal, and plant specimens. Ancient DNA can be extracted from various fossilized specimens including bones, eggshells, and artificially preserved tissues in human and animal specimens.
Improvements in DNA extraction and library preparation techniques allowed for mtDNA to be successfully isolated and sequenced, however the nuclear DNA was found to be too degraded in the observed specimen, and was also contaminated with DNA from an ancient cave bear (Ursus deningeri) present in the cave. [33]
Ancient DNA Data from a ~4,500 BP Ethiopian highland individual, [83] and from Southern (~2,300–1,300 BP), and Eastern and South-Central Africa (~8,100–400 BP) has clarified that some West Africa populations have small amounts of excess alleles best explained by an archaic source in West Africans that is not included in the pre-agricultural ...
Together this data forms the world’s largest ancient gene bank, according to the scientists involved in the project. ... By comparing the ancient DNA with modern-day samples, the researchers ...
A cosmopolitan center. The genetic data collected during the research revealed that Pompeii was a cosmopolitan city full of people with diverse backgrounds, the study authors said.
The findings, published in a series of articles in Current Archaeology, come from one of the largest ancient DNA projects in Europe involving 460 people who were buried in graves between 200AD and ...
Paleogenomics is a field of science based on the reconstruction and analysis of genomic information in extinct species.Improved methods for the extraction of ancient DNA (aDNA) from museum artifacts, ice cores, archeological or paleontological sites, and next-generation sequencing technologies have spurred this field.