American dogs have Asian origins
London: A new genetic analysis of hundreds of American dog breeds has found that the native canines` ancient roots trace back to Asia.
Once thought to have been extinct, native American dogs are on the contrary thriving, according to a recent study that links these breeds to ancient Asia.
The arrival of Europeans in the Americas has generally been assumed to have led to the extinction of indigenous dog breeds; but a comprehensive genetic study has found that the original population of native American dogs has been almost completely preserved, said Peter Savolainen, a researcher in evolutionary genetics at KTH Royal Institute of Technology in Stockholm.
In fact, American dog breeds trace their ancestry to ancient Asia, Savolainen said. These native breeds have 30 per cent or less modern replacement by European dogs, he said.
"Our results confirm that American dogs are a remaining part of the indigenous American culture, which underscores the importance of preserving these populations," he said.
Savolainen`s research group, in cooperation with colleagues in Portugal, compared mitochondrial DNA from Asian and European dogs, ancient American archaeological samples, and American dog breeds, including Chihuahuas, Peruvian hairless dogs and Arctic sled dogs.
They traced the American dogs` ancestry back to East Asian and Siberian dogs, and also found direct relations between ancient American dogs and modern breeds.
"It was especially exciting to find that the Mexican breed, Chihuahua, shared a DNA type uniquely with Mexican pre-Columbian samples. This gives conclusive evidence for the Mexican ancestry of the Chihuahua," he said.
The team also analysed stray dogs, confirming them generally to be runaway European dogs; but in Mexico and Bolivia they identified populations with high proportions of indigenous ancestry.
Savolainen said that the data also suggests that the Carolina Dog, a stray dog population in the US, may have an indigenous American origin.
More from India
More from World
More from Sports
More from Entertaiment
- PM Modi visits Lord Jagannath temple at Puri
- Boyfriend murders DU student Arzu Singh; hides body in his house for three days
- International Fleet Review: India shows off naval prowess in "Operation Demo"
- Declared unfit for employment, man invents cost-effective electric car called Pixie!
- Can comments on social media against politicians land you in jail?
- PM Narendra Modi never disappoints his supporters, here's another example - see pic
- Year of the Monkey: Know how lucky you are according to Chinese calendar!
- India vs Sri Lanka 2016, 1st T20I: Squads, date, time, TV listing, live streaming
- WATCH: When PM Modi took his supporters by surprise, came to meet them standing on car's side foot step
- After prayers at Jagannath Temple, PM Narendra Modi inaugurates IOCL project at Paradip refinery