Archiver > GENEALOGY-DNA > 2004-01 > 1074106120

From: "LJCrain" <>
Subject: [DNA] Sediment Cores Yield Oldest DNA Yet Discovered
Date: Wed, 14 Jan 2004 12:48:40 -0600

So according to this article, DNA should be retrievable from 30,000 year old human remains, if such were ever found in this state of preservation. It will be interesting to learn if the Columbian mammoth found recently in Brazoria county, TX (warm, humid, environment with fluctuating temperatures) will yield useable DNA samples.

Janet Crain

Scientific American

April 18, 2003

"Eske Willerslev of the University of Copenhagen and his colleagues collected sediment samples from the Siberian tundra in search of ancient bacterial DNA. To their surprise, they instead discovered DNA from 28 different families of trees, shrubs, herbs and mosses. What is more, the soil samples also contained DNA from eight types of mammals, both of species that survive today and ones that disappeared long ago, such as the wooly mammoth. In a paper published online today by the journal Science, the authors report that the oldest animal DNA was 30,000 years old; the plant DNA dated to between 300,000 to 400,000 years ago. The DNA analyses, which were conducted independently in Copenhagen and Oxford, indicate that the plant DNA is 'the oldest reproducible and authenticated ancient DNA to date,' the authors write. "

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