Scientists have made a groundbreaking discovery in the field of ancient genetics by extracting RNA from the remains of a 39,000-year-old mammoth. The finding challenges current understanding of RNA's stability and opens up new avenues for studying history through this previously unstable molecule.
Researchers at Stockholm University found the intact RNA preserved within the slow-twitch muscle fibers of Yuka, a male mammoth discovered in melting permafrost near the Arctic Ocean. This is an astonishing feat given that RNA was once believed to degrade rapidly after leaving its cell's confines.
The study sheds new light on the life and death of Yuka, offering insights into his physiological stress at the time of his demise. Stress genes were found active in the mammoth's RNA profile, suggesting a life marked by adversity.
Further investigation also revealed novel forms of microRNA in mammoths that don't exist in modern elephants, expanding our knowledge of gene expression and development.
This remarkable breakthrough may aid efforts to resurrect the woolly mammoth through genetic engineering, as well as provide new tools for understanding how viruses, including those causing diseases like Ebola, HIV, and influenza, have evolved over time.
The study highlights significant gaps in current understanding of what happens to molecules after death, raising fundamental questions about the persistence of biological information.
Researchers at Stockholm University found the intact RNA preserved within the slow-twitch muscle fibers of Yuka, a male mammoth discovered in melting permafrost near the Arctic Ocean. This is an astonishing feat given that RNA was once believed to degrade rapidly after leaving its cell's confines.
The study sheds new light on the life and death of Yuka, offering insights into his physiological stress at the time of his demise. Stress genes were found active in the mammoth's RNA profile, suggesting a life marked by adversity.
Further investigation also revealed novel forms of microRNA in mammoths that don't exist in modern elephants, expanding our knowledge of gene expression and development.
This remarkable breakthrough may aid efforts to resurrect the woolly mammoth through genetic engineering, as well as provide new tools for understanding how viruses, including those causing diseases like Ebola, HIV, and influenza, have evolved over time.
The study highlights significant gaps in current understanding of what happens to molecules after death, raising fundamental questions about the persistence of biological information.