A new look at the Iceman’s DNA reveals that his ancestors weren’t who scientists previously thought.
The Iceman is about 5,300 years old. Other people with steppe ancestry didn’t appear in the genetic record of central Europe until about 4,900 years ago. Ötzi “is too old to have that type of ancestry,” says archaeogeneticist Johannes Krause of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany. The mummy “was always an outlier.”
Krause and colleagues put together a new genetic instruction book for the Iceman. The old genome was heavily contaminated with modern people’s DNA, the researchers report August 16 in Cell Genomics. The new analysis reveals that “the steppe ancestry is completely gone.”
But the Iceman still has oddities. About 90 percent of Ötzi’s genetic heritage comes from Neolithic farmers, an unusually high amount compared with other Copper Age remains, Krause says.
2023-08-16 10:00:00
Original from www.sciencenews.org