Genome of horse buried 700,000 years is recoveredBreaking News
tags: NYT, genetics, biology, horses
Researchers have reconstructed an ancient genome that is 10 times as old as any retrieved so far, and 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 some 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.
Before this work, the oldest genome that had been recovered was that of a Denisovan human who lived 70,000 years ago. The new finding, if accepted, would extend by tenfold the reach of paleogenomics, the study of ancient genomes reconstructed from fossil bones. Within the last few decades this young science has become a powerful complement to paleontology, the study of fossils, as a way of reconstructing evolutionary history....
comments powered by Disqus
- Carly Fiorina Says Knowledge of Medieval History Will Help Her Defeat ISIS
- FOIA Documents Reveal Agent Orange Dioxin, Toxic Dumps, Fish Kills on Okinawa Base
- Scientists Hope to Learn How Pompeians Lived, Before the Big Day
- Watch Robert Kennedy Push Gun Control In Same Town As Recent Mass Shooting
- October is LGBT History Month
- National History Day Helps 600,000 Kids Bring the Past to Life
- Finally some good news for history grads
- Historians issue statement in support of European migrants
- Conservative historian Arthur Herman slammed for saying Obama is highly submissive to Putin and other strong leaders
- Intellectual historians to gather in October