DNA revelations from Ötzi the Iceman’s leather and furs

5,300-year-old mummy found in the Italian Alps wore clothes made from many different animals.

or the past two decades, scientists have analyzed every minute detail of Ötzi, a 5,300-year-old natural mummy found in the ice of the Italian Ötztal Alps. But one remaining mystery was the provenance of his clothing, made from leather and fur. Now, thanks to refined techniques in DNA sequencing, a team of scientists has identified how the clothing was made—and discovered something surprising about Ötzi’s domestic habits.

Ötzi lived during the Copper Age, when humans had been domesticating animals for a few thousand years, and our cutting-edge technologies included stone tools and fired pottery. From previous studies, we know that Ötzi was likely murdered by an arrow and a blow to the head. We also know he suffered from arthritis, and he ate a meal of deer and berries before he died.

The team’s new findings, published in Nature Scientific Reports, are as much a demonstration of DNA sequencing wizardry as they are about ancient fashion. It’s incredibly difficult to get genetic material out of tanned hides, because they’ve generally been scraped, heated, and exposed to fatty acids. Plus, the hides and furs themselves had disintegrated. But the researchers used several methods for extracting DNA from the hides that made up Ötzi’s shoelace, hat, loincloth, coats, leggings, and quiver. First they compared the strands of DNA they did find with other mapped genomes to identify species. Then the researchers targeted very small, specific regions in the DNA for reconstruction to learn more about the animals’ relationships with today’s domestic breeds.

 

Read at ArsTechnica