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Non-Invasive Method to Extract DNA from fossil
May 16 , 2023
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- Scientists have developed a non-destructive DNA extraction method Palaeolithic Remains.
- In this, the objects were submerged in a sodium phosphate buffer while gradually increasing the temperature.
- DNA trapped in ancient bone and tooth artifacts is released into the solution and enables further sequencing and analysis.
- By washing the artifacts at temperatures of up to 90 degrees Celsius, we are able to extract DNA from the wash waters, while keeping the artifacts intact.
- The researchers applied this new method to a deer tooth pendant from Denisova Cave and managed to recover DNA of a wapiti (species of elk) and an ancient human.
- The DNA analyses allowed them to estimate the age of the pendant at around 19,000-25,000 years.
- Generally, DNA extraction from ancient skeletal material can be destructive or can alter the specimens.
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