Dogs Likely Originated in Europe More Than 18,000 Years Ago
2013-11-14 0:00

From: ScienceDaily

Wolves likely were domesticated by European hunter-gatherers more than 18,000 years ago and gradually evolved into dogs that became household pets, UCLA life scientists report.

"We found that instead of recent wolves being closest to domestic dogs, ancient European wolves were directly related to them," said Robert Wayne, a professor of ecology and evolutionary biology in UCLA’s College of Letters and Science and senior author of the research. "This brings the genetic record into agreement with the archaeological record. Europe is where the oldest dogs are found."

The UCLA researchers’ genetic analysis is published Nov. 15 in the journal Science and featured on the journal’s cover.

In related research last May, Wayne and his colleagues reported at the Biology of Genomes meeting in New York the results of their comparison of the complete nuclear genomes of three recent wolf breeds (from the Middle East, East Asia and Europe), two ancient dog breeds and the boxer dog breed.

"We analyzed those six genomes with cutting-edge approaches and found that none of those wolf populations seemed to be closest to domestic dogs," Wayne said. "We thought one of them would be, because they represent wolves from the three possible centers of dog domestication, but none was. All the wolves formed their own group, and all the dogs formed another group."

The UCLA biologists also hypothesized at that conference that a now-extinct population of wolves was more directly related to dogs.

For the current study in Science, the researchers studied 10 ancient "wolf-like" animals and eight "dog-like" animals, mostly from Europe. These animals were all more than 1,000 years old, most were thousands of years old, and two were more than 30,000 years old.

The biologists studied the mitochondrial DNA of the animals, which is abundant in ancient remains. (Mitochondria are tiny sub-cellular structures with their own small genome.) By comparing this ancient mitochondrial DNA with the modern mitochondrial genomes of 77 domestic dogs, 49 wolves and four coyotes, the researchers determined that the domestic dogs were genetically grouped with ancient wolves or dogs from Europe -- not with wlves found anywhere else in the world or even with modern European wolves. Dogs, they concluded, derived from ancient wolves that inhabited Europe and are now extinct.


"Ancient dog fossil A fossil of a dog that lived approximately 8,500 years ago, from the Koster archaeological site in Illinois. "

Wayne said that that the domestication of predatory wolves likely occurred among ancient hunter-gatherer groups rather than as part of humans’ development of sedentary, agricultural-based communities.

"The wolf is the first domesticated species and the only large carnivore humans ever domesticated," Wayne said. "This always seemed odd to me. Other wild species were domesticated in association with the development of agriculture and then needed to exist in close proximity to humans. This would be a difficult position for a large, aggressive predator. But if domestication occurred in association with hunter-gatherers, one can imagine wolves first taking advantage of the carcasses that humans left behind -- a natural role for any large carnivore -- and then over time moving more closely into the human niche through a co-evolutionary process."

[...]

Read the full article at: sciencedaily.com

More: Dogs may have helped Humans beat the Neanderthals



Related Articles
Left or Right Tail Wags Indicate Different Emotional Responses from Dogs
Woman Clones Dead Dog Twice
Police Dog Attacks Boy in Garden
Homes with dogs have more varied types of bacteria
Names of Dogs in Ancient Greece
Starchy diet may have transformed wolves to dogs
What Is Your Dog Thinking?
Dogs have been Man’s Best Friend for at Least 8,000 Years
NPR: Old Dogs, New Data: Canines May Have Been Domesticated In Europe


Latest News from our Front Page

West’s tributes to late Saudi King reveal hypocrisy not democracy
2015-01-27 2:16
Hypocrisy is not usually regarded as a virtue of leadership, yet judging by the gushing tributes paid to Saudi Arabia’s King Abdullah by various Western governments and establishment figures on his death, there are those who believe it should be. In the UK this hypocrisy has been stretched to breaking point with the decision to fly the flags over Downing ...
Millions of GMO insects could be set loose in Florida Keys
2015-01-27 2:34
Millions of genetically modified mosquitoes could be released in the Florida Keys if British researchers win approval to use the bugs against two extremely painful viral diseases. Never before have insects with modified DNA come so close to being set loose in a residential U.S. neighborhood. "This is essentially using a mosquito as a drug to cure disease," said Michael Doyle, executive ...
Furguson Scared The Super - Rich So Bad They're Planning Exits
2015-01-27 0:22
According to a speaker at the World Economic Forum in Davos, Ferguson and Occupy absolutely terrified the world’s super-rich, and now they’re buying airstrips and farms in remote locations to escape to. At the World Economic Forum in Davos, Switzerland, which was held between January 21-24, over 2,500 leaders in the fields of business, international politics, academia and journalism met to discuss ...
The Ring Of The Nibelungs
2015-01-27 0:20
Dark Kingdom: The Dragon King (also known as Ring of the Nibelungs, Die Nibelungen, Curse of the Ring, and Sword of Xanten) is a 2004 German television film directed by Uli Edel and starring Benno Fürmann, Alicia Witt, Kristanna Loken, and Max von Sydow. The film is based on the Norse mythology story Völsungasaga and the German epic poem Nibelungenlied, ...
Google Street View Shows NAACP Bombing a Hoax
2015-01-26 22:58
Caught in the act: NAACP passing off old soot marks as new in ‘bomb’ hoax NAACP Colorado Chapter President Henry D. Allen Jr. has been caught in the act of passing off old soot marks as new damage from the recent ‘explosion’ at the Colorado Springs chapter headquarters. Although Gotnews.com has previously remarked on the minimal damage as reported by the ...
More News »