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Ancient Europeans Were Lactose Intolerant for Thousands of Years

October 22, 2014 By Rebecca McGhee Leave a Comment

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Ancient-Europeans-were-lactose-intolerant

The recent study revealed, when agriculture flourished across Europe, the practitioners remain lactose intolerant while the consumption of milk and dairy products from domestic animals became trite. The researchers from University College Dublin studied the ancient DNA extracted from the skulls that dated from 5700 BC to 800 BC and revealed that the Europeans carried the genes for lactose intolerance. The findings of the study illustrating the genetic changes that lag behind the cultural shifts is published in Nature Communications Journal on 21st October.

Daniel Bradley, co-author of the study told the Washington Post, “The genome do appear to shift as new technologies come around. You can’t look at this and think that farming and metallurgy are technologies that come into the culture by osmosis. They come with people. Genomes and technology migrate together.”

Besides the new insights they gathered concerning the genetic makeup of the ancient Europeans, the researchers of the study also contributed to the procedural methodological development of extracting useable ancient DNA by learning that the skull’s petrous bones are perfect for such analyses. Ron Pinhasi, co-author of the study from the UCD Earth Institute and UCD School of Archaeology, University College Dublin stated, “The increased percentage DNA yield from the petrous bones exceeded those from other bones by up to 183-fold. This gave us anywhere between 12% and almost 90% human DNA in our samples compared to somewhere between 0% and 20% obtained from teeth, fingers and rib bones.”

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Rebecca McGhee

Rebecca McGhee is a valuable contributor for several publications and online platforms. Having graduates with a degree in Computer Science, her interest lies mostly in this area. Yet, she finds any tech-related topic or scientific topic is a challenge worth meeting. She enjoys turning her own research projects in worthy contributions that reach the large public. And mostly, she is grateful for all the feedback she receives from readers, as she believes it aids her in permanently improving her style of writing, beyond the scientific style she is accustomed to.

Filed Under: Tech & Science Tagged With: 21 Oct, Daniel Bradley, DNA, Europe, Lactose intolerant, Nature Communications, Petrous bones, Ron Pinhasi

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