A Momentary Flow

Updating Worldviews one World at a time

DNA Buried 7,000 Centuries Is Retrieved
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Researchers have reconstructed an ancient genome that is 10 times as old as any retrieved so far, and they now say that DNA should be recoverable from animals that lived one million years ago. This would greatly extend biologists’ ability to understand the evolutionary past.
The genome was that of a horse that lived about 700,000 years ago in what is now the Yukon Territory in Canada, and its reconstruction has already led to new insights. The researchers who sequenced it then analyzed DNA from a less ancient horse, one that lived 43,000 years ago, as well as five contemporary horse breeds and a donkey named Willy that resides in the Copenhagen Zoo. They concluded that the genus that gave rise to modern horses, zebras and donkeys — Equus — arose about four million years ago, twice as far back as had been thought. (via DNA Buried 7,000 Centuries Is Retrieved - NYTimes.com)

DNA Buried 7,000 Centuries Is Retrieved

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Researchers have reconstructed an ancient genome that is 10 times as old as any retrieved so far, and they now say that DNA should be recoverable from animals that lived one million years ago. This would greatly extend biologists’ ability to understand the evolutionary past.

The genome was that of a horse that lived about 700,000 years ago in what is now the Yukon Territory in Canada, and its reconstruction has already led to new insights. The researchers who sequenced it then analyzed DNA from a less ancient horse, one that lived 43,000 years ago, as well as five contemporary horse breeds and a donkey named Willy that resides in the Copenhagen Zoo. They concluded that the genus that gave rise to modern horses, zebras and donkeys — Equus — arose about four million years ago, twice as far back as had been thought. (via DNA Buried 7,000 Centuries Is Retrieved - NYTimes.com)

Source The New York Times

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