News / Science & Technology

Scientists Map 700,000-Year-Old Horse Genome

In this undated photo provided by Ludovic Orlando via 'Nature,' two pieces of a 700,000-year-old horse metapodial bone, just before being extracted for ancient DNA, are shown. (AP Photo/Ludovic Orlando via Nature)
In this undated photo provided by Ludovic Orlando via 'Nature,' two pieces of a 700,000-year-old horse metapodial bone, just before being extracted for ancient DNA, are shown. (AP Photo/Ludovic Orlando via Nature)

Related Articles

'After Earth' Imagines a Hostile Future Planet

Will Smith summer flick showcases actor's son

New Dinosaur Species Was Crocodile Snack

Scientists in Utah have determined that the ancient reptiles fed on a previously unrecognized small bipedal dinosaur species

Teeth May Hold Clues About Early Man's Weaning Patterns

Shorter nursing periods could have led to higher reproductive rates among modern humans
VOA News
Scientists have mapped the genetic code of a horse about 700,000 years old, making it the oldest mapped genome of any animal by 10 times.

The scientists used a tiny fossil found in the Canadian Yukon, and while most of the fossil was contaminated with modern bacteria, they were still able to get a good genetic picture of the ancient horse. Scientists said that for every 200 DNA molecules extracted from the fossil, only one belonged to the horse.

While the findings add to what is already known about ancient horses, the techniques employed could be used to map many other types of ancient animals, mastodons, bison and mammoths to early humans, lead authors Ludovic Orlando and Eske Willerslev of the University of Copenhagen told the Associated Press.

This "is breaking the time barrier," Willerslev said.

The 700,000-year-old horse was probably about the size of modern-day Arabian horses, researchers said, but the horse probably lacked the genes for large muscles needed for racing.

Previously, the oldest animal fossil genetically mapped was from 75,000 years ago. That fossil was of a relative of Neanderthals and was found in a Siberian cave.

Scientists believe the new laboratory techniques may allow them to map animal genomes up to one million years ago and does not necessarily have to be used on fossils found in cold climates.

Ross MacPhee, curator of mammals at the American Museum of Natural History, who wasn't part of the research, told the Associated Press "there's no reason in substance why we couldn't go back further."

And while there is hope the techniques could be used to map an ancient hominid, Orlando and Willerslev said most ancient human fossils are found in Africa where the climate is warm, and that makes the DNA deteriorate more quickly.

The work was published Wednesday in the journal Nature and discussed at a science conference in Helsinki.

You May Like

UN: 1 Million Somalis at Risk of Hunger

Group warns region is in dire need of humanitarian aid, with at least 200,000 children under age of five acutely malnourished as drought hits southern, central part of nation More

Human Rights Groups Allege Supression of Freedoms in Thailand

Thailand’s military, police have suppressed release of independent report assessing human rights in kingdom during first 100 days of latest coup More

Jennifer Lawrence Contacts FBI After Nude Photos Hacked

'Silver Linings Playbook' actress' photos were posted on image-sharing forum 4chan; Federal Bureau of Investigations is looking into matter More

This forum has been closed.
Comment Sorting
Comments
     
by: John P. Tarver from: California
June 28, 2013 12:03 PM
When drawing conclusions from DNA one must consider the baseline of the global geological fossil record. From the fossil record we know that species occur rapidly following a mass extinction, the opposite of evolution. Therefore the speculation of this article can not be true. Perhaps it is just more social Darwinism pretending to be science?

In Response

by: Peter
June 28, 2013 2:19 PM
Tell me, what exactly does 'social Darwinism' have to do with science or evolution? It's an analogy to likening natural selection to the structure of a society or polity. It's not unusual that someone bent on denying evolutionary science would be unaware of that distinction.

In Response

by: Gavin from: Seattle
June 28, 2013 1:37 PM
Evolutionary theory predicts rapid speciation after a mass extinction. Do you know what Social Darwinism is? Because it doesn't have much to do with 700,000 year old horses.


by: Curly from: USA
June 28, 2013 11:37 AM
This would be a great chance to resurrect this species by making a fertilized egg and a host for the gestation. That would be a great leap forward in the understanding of the past.

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Ukraine Schools Resume Classes, Donate to Government Forcesi
X
September 02, 2014 12:58 PM
A new school year has started in Ukraine but thousands of children in the war-torn east are unable to attend because of ongoing clashes with pro-Russia rebels. In Ukraine's capital, patriotic education has become the norm along with donations to support injured security forces fighting to take back rebel-held areas. VOA's Daniel Schearf reports from Kyiv.
Video

Video Ukraine Schools Resume Classes, Donate to Government Forces

A new school year has started in Ukraine but thousands of children in the war-torn east are unable to attend because of ongoing clashes with pro-Russia rebels. In Ukraine's capital, patriotic education has become the norm along with donations to support injured security forces fighting to take back rebel-held areas. VOA's Daniel Schearf reports from Kyiv.
Video

Video US Detainees Want Negotiators for Freedom in North Korea

The three U.S. detainees held in North Korea were permitted to speak with foreign media Monday. The government of Kim Jong Un restricted the topics of the questions, and the interviews in Pyongyang were limited to five minutes. Each of the men asked Washington to send a representative to Pyongyang to secure his release. VOA’s Carolyn Presutti has our story.
Video

Video Internet, Technology Offer New Tools for Journalists

The Internet and rapidly evolving technology is quickly changing how people receive news and how journalists deliver it. There are now more ways to tell a story than ever before. One school in Los Angeles is teaching the next generation of journalists with the help of a state-of-the-art newsroom. Elizabeth Lee has this report.
Video

Video Turkmen From Amerli Describe Survival of IS Siege

Over the past few weeks, hundreds of Shi'ite Turkmen have fled the town of Amerli seeking refuge in the northern city of Kirkuk. Despite recent military gains after U.S. airstrikes that were coordinated with Iraqi and Kurdish forces, the situation remains dire for Amerli’s residents. Sebastian Meyer went to Kirkuk for VOA to speak to those who managed to escape.
Video

Video West Africa Ebola Vaccine Trials Possible by Early 2015

A U.S. health agency is speeding up clinical trials of a possible vaccine against the deadly Ebola virus that so far has killed more than 1,500 people in West Africa. If successful, the next step would be a larger trial in countries where the outbreak is occurring. VOA's Carol Pearson has more.
Video

Video Survivors Commemorate 70th Anniversary of Nazi Liquidation of Jewish Ghetto

When the German Nazi army occupied the Polish city of Lodz in 1939, it marked the beginning of a long nightmare for the Jewish community that once made up one third of the population. Roughly 200,000 people were forced into the Lodz Ghetto. Less than 7,000 survived. As VOA’s Kane Farabaugh reports, some survivors gathered at the Union League Club in Chicago on the 70th anniversary of the liquidation of the Lodz Ghetto to remember those who suffered at the hands of the Nazi regime.
Video

Video Cost to Raise Child in US Continues to Rise

The cost of raising a child in the United States continues to rise. In its latest annual report, the U.S. Department of Agriculture says middle income families with a child born in 2013 can expect to spend more than $240,000 before that child turns 18. And sending that child to college more than doubles that amount. VOA’s Deborah Block visited with a couple with one child in Alexandria, Virginia, to learn if the report reflects their lifestyle.
Video

Video Chaotic Afghan Vote Recount Threatens Nation’s Future

Afghanistan’s troubled presidential election continues to be rocked by turmoil as an audit of the ballots drags on. The U.N. says the recount will not be completed before September 10. Observers say repeated disputes and delays are threatening the orderly transfer of power and could have dangerous consequences. VOA correspondent Meredith Buel reports.

AppleAndroid