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

Yemen Brings US, Iran Closer to Naval Face-off

US sending two more ships to waters off coast of Yemen to take part in 'maritime security operations' More

Minorities Become Majority Across US

From 2000 to 2013, minorities became the majority in 78 counties in the United States. Here's where those demographic shifts are happening More

Japan's Maglev Train Breaks Own Speed Record

Seven-car 'magnetic levitation' train traveled at more than 600 kilometers per hour during test run Tuesday 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.
New Brain Mapping Techniques Could Ease Chronic Paini
X
Shelley Schlender
April 20, 2015 7:03 PM
Pain has a purpose - it can stop you from touching a flame or from walking on a broken leg. As an injury heals, the pain goes away. Usually. But worldwide, one out of every five people suffers from pain that lasts for months and years, leading to lost jobs, depression, and rising despair when medical interventions fail or health experts hint that a pain sufferer is making it up. From Boulder, Colorado, Shelley Schlender reports that new methods for mapping pain in the brain are providing validation for chronic pain and might someday guide better treatment.
Video

Video New Brain Mapping Techniques Could Ease Chronic Pain

From Boulder, Colorado, Shelley Schlender reports that new methods for mapping pain in the brain are providing validation for chronic pain and might someday guide better treatment.
Video

Video Hope, Prayer Enter Fight Against S. Africa Xenophobia

South Africa has been swept by disturbing attacks on foreign nationals. Some blame the attacks on a legacy of colonialism, while others say the economy is to blame. Whatever the cause, ordinary South Africans - and South African residents from around the world - say they're praying for the siege of violence to end. Anita Powell reports from Johannesburg.
Video

Video Italy Rescues Migrants After Separate Deadly Capsize Incident

Italy continued its massive search and rescue operation in the Mediterranean Monday for the capsized boat off the coast of Libya that was carrying hundreds of migrants, while at the same time rescuing Syrian migrants from another vessel off the coast of Sicily. Thirteen children were among the 98 Syrian migrants whose boat originated from Turkey on the perilous journey to Europe.
Video

Video New Test Set to Be Game Changer in Eradicating Malaria

The World Health Organization estimates 3.4 billion people are at risk of malaria, with children under the age of five and pregnant women being the most vulnerable. As World Malaria Day approaches (April 25), mortality rates are falling, and a new test -- well into the last stage of trials -- is having positive results in Kenya. Lenny Ruvaga reports for VOA from Nairobi.
Video

Video Are Energy Needs Putting Thailand's Natural Beauty at Risk?

Thailand's appetite for more electricity has led to the construction of new dams along the Mekong River to the north and new coal plants near the country's famous beaches in the south. A proposed coal plant in a so-called "green zone" has touched off a debate. VOA's Steve Sandford reports.
Video

Video Overwhelmed by Migrants, Italy Mulls Military Action to Stabilize Libya

Thousands more migrants have arrived on the southern shores of Italy from North Africa in the past two days. Authorities say they expect the total number of arrivals this year to far exceed previous levels, and the government has said military action in Libya might be necessary to stem the flow. VOA's Henry Ridgwell reports.
Video

Video Putin Accuses Kyiv of ‘Cutting Off’ Eastern Ukraine

Russian President Vladimir Putin, in his annual televised call-in program, again denied there were any Russian troops fighting in Ukraine. He also said the West was trying to ‘contain’ Russia with sanctions. Henry Ridgwell reports on reactions to the president’s four-hour TV appearance.
Video

Video Eye Contact Secures Dog's Place in Human Heart

Dogs serve in the military, work with police and assist the disabled, and have been by our side for thousands of years serving as companions and loyal friends. We love them. They love us in return. VOA’s Rosanne Skirble reports on a new study that looks at the bio-chemical bond that cements that human-canine connection.
Video

Video Ukrainian Volunteers Search for Bodies of Missing Soldiers

As the cease-fire becomes more fragile in eastern Ukraine, a team of volunteer body collectors travels to the small village of Savur Mohyla in the what pro-Russian separatists call the Donetsk Peoples Republic - to retrieve bodies of fallen Ukrainian servicemen from rebel-held territories. Adam Bailes traveled with the team and has this report.
Video

Video Xenophobic Violence Sweeps South Africa

South Africa, long a haven for African immigrants, has been experiencing the worst xenophobic violence in years, with at least five people killed and hundreds displaced in recent weeks. From Johannesburg, VOA’s Anita Powell brings us this report.
Video

Video Apollo 13, NASA's 'Successful Failure,' Remembered

The Apollo 13 mission in 1970 was supposed to be NASA's third manned trip to the moon, but it became much more. On the flight's 45th anniversary, astronauts and flight directors gathered at Chicago's Adler Planetarium to talk about how the aborted mission changed manned spaceflight and continues to influence space exploration today. VOA’s Kane Farabaugh reports.
Video

Video Badly Burned Ukrainian Boy Bravely Fights Back

A 9-year-old Ukrainian boy has returned to his native country after intensive treatment in the United States for life-threatening burns. Volodia Bubela, burned in a house fire almost a year ago, battled back at a Boston hospital, impressing doctors with his bravery. Faith Lapidus narrates this report from VOA's Tetiana Kharchenko.
Video

Video US Maternity Leave Benefits Much Less Than Many Countries

It was almost 20 years ago that representatives of 189 countries met at a UN conference in Beijing and adopted a plan of action to achieve gender equality around the world. Now, two decades later, the University of California Los Angeles World Policy Analysis Center has issued a report examining what the Beijing Platform for Action has achieved. From Los Angeles, Elizabeth Lee has more.
Video

Video Endangered Hawaiian Birds Get Second Chance

Of the world's nearly 9,900 bird species, 13 percent are threatened with extinction, according to BirdLife International. Among them are two Hawaiian honeycreepers - tiny birds that live in the forest canopy, and, as the name implies, survive on nectar from tropical flowers. Scientists at the San Diego Zoo report they have managed to hatch half a dozen of their chicks in captivity, raising hopes that the birds will flutter back from the brink of extinction. VOA’s George Putic reports.
Video

Video Exhibit Brings Renaissance Master Out of the Shadows

The National Gallery of Art in Washington has raised the curtain on one of the most intriguing painters of the High Renaissance. Mostly ignored after his death in the early 1500s, Italian master Piero di Cosimo is now claiming his place alongside the best-known artists of the period. VOA’s Ardita Dunellari reports.

VOA Blogs