Scientists have learned that the ancient Indians brought dogs from Siberia

09 Julio, 2018, 15:26 | Author: Earnest Bishop
  • Scientists have learned that the ancient Indians brought dogs from Siberia

Using genetic information from 71 archaeological dog remains from North America and Siberia, an worldwide team led by researchers at the University of Oxford, University of Cambridge, Queen Mary University of London, and Durham University showed that "native" (or "pre-contact") American dogs, which arrived alongside people over 10,000 years ago and dispersed throughout North and South America, possessed genetic signatures unlike dogs found anywhere else in the world.

As well as studying the mitochondrial DNA, researchers also sequenced the nuclear genome of seven of the ancient dogs, as reported by Gizmodo, leading them to conclude that ancient dogs which lived in huge populations all over the Americas did not survive the onslaught of the European colonizers from the 15th century onward.

According to researchers, this form of cancer is found in dogs today inhabiting the Americas, and this is the only feature which connects them with ancient American dogs who migrated from Siberia and other parts of Asia. However, after analyzing the DNA of the dogs that lived with the Indians 10 thousand years ago, experts came to the conclusion that their genetic structure mostly coincides with the individuals who lived in ancient Siberia. "We suspect that a lot of the reasons [ancient] dogs were wiped out, were similar reasons that Native American populations were destroyed", Perri said.

But one close relative of these native dogs lives on in an unexpected place - as a transmissible cancer whose genome is that of the original dog in which it appeared, but which has since spread throughout the world. They likely came over in a wave of migration only about 1,000 years ago-roughly 500 years before the Europeans arrived-meaning that they are a little more closely related.

Preserved in every single CTVT tumour is ancient DNA from the long-dead founder.

The new study dispelled a previous theory about the origin of dogs in the Americas, which posited that they evolved from domesticated wolves.

More news: Ordenan dar libertad a Luiz Inácio Lula da Silva
More news: Rumor: Justin Bieber y Hailey Baldwin están comprometidos?
More news: 4 rescued from Thai cave in risky operation; 9 remain inside

To trace the story of these pre-contact dogs, researchers studied DNA found in the mitochondria of 71 North American and Siberian dog bones. Genetic traces of these dogs have largely vanished, even when we look at breeds still considered to be "native American" like Chihuahuas, Mexican hairless dogs, and South American village dogs.

"It is known how Indigenous peoples of the Americas suffered from the genocidal practices of European colonists after contact", author Ripan Malhi, an anthropology professor at the University of IL, explains. The tumor cells spread through mating and carry a copy of that original DNA, allowing researchers to paint a clear picture of the "founding dog", or patient zero.

Despite their annihilation, the displaced exacted what Perri said she and her colleagues darkly joke is "the revenge of these native American dogs".

An extremely good boy undergoing treatment for CTVT.

The oldest dog remains in the Americas date to about 9,000 years ago, many thousands of years after people began migrating over a land bridge connecting present-day Siberia and Alaska. Some ancient remains excavated decades ago and labeled wolves or coyotes might actually be from dogs or hybrids, but it will take DNA analysis to find out, she said.

"But the cancer genome we found was a real surprise", Linderholm said. Their relationship can be traced back from the earliest of times.


  • Xiaomi's shares open 2.9% down on debut in Hong Kong

    Xiaomi's shares open 2.9% down on debut in Hong Kong

    At midday, the stock staged a recovery from HK$16 (£1.53) to HK$16.96 but was still below its debut price of HK$17. That is far short of the oversubscription rates for other tech IPOs in Hong Kong. "We are an internet firm".

    Brexit Secretary David Davis resigns

    Britons voted 52 to 48 percent to leave the a June 2016 referendum, and the plan is to exit on March 29, 2019. Labour Party chairman Ian Lavery said: "This is absolute chaos and Theresa May has no authority left".
    Mohammad Kaif Trolled For Heaping Praise On Pakistan Team And Fakhar Zaman

    Mohammad Kaif Trolled For Heaping Praise On Pakistan Team And Fakhar Zaman

    But when the pair were dismissed, Australia's momentum nosedived as they managed just 6-46 from their last five overs. Aaron Finch has named Pakistan's biggest threat ahead of Australia's T20 final matchup with the World No 1 side.
  • Fumar será más caro: aumentan 5% los cigarrillos

    Fumar será más caro: aumentan 5% los cigarrillos

    La tabacalera Massalin Particulares informó que desde mañana los precios de sus distintos marcas subirán en promedio 5%. Según este acuerdo, los cigarrillos volverían a aumentar su valor en octubre , en lo que sería la última suba del año.
    Paulinho loaned back to Southern China Tigers

    Paulinho loaned back to Southern China Tigers

    "I have an offer from China and from another club, although it isn't certain that I will go". He played in all five of Brazil's matches at this World Cup , contributing a goal.

    Dos muertos en violenta incursión de fuerzas de Ortega en Nicaragua

    En un acto ante miles de seguidores, Ortega, exguerrillero de 72 años, descartó el sábado un adelanto de elecciones como propuso la Iglesia y exigen sus opositores.
  • El papa Francisco consoló a los hinchas brasileños

    El papa Francisco consoló a los hinchas brasileños

    Lamentablemente, en la Copa Mundial de Rusia 2018 , el camino para ambos no fue el esperado y se despidieron en octavos de final (Argentina) y cuartos de final ( Brasil ).

    Viral: Arruina gato la entrevista en vivo de un historiador

    Jerzy Targalaski se vió eclipsado por uno de sus gatos, que se le subió a los hombros llamando su atención durante el directo .
    Pippa Middleton, pregnant, smiling, the sister of Kate shows her round belly

    Pippa Middleton, pregnant, smiling, the sister of Kate shows her round belly

    Kensington Palace has yet to release the guest list, but royal christenings are usually a small, family affair. According to tradition, water from the River Jordan is set to be used for Louis's christening.
  • Ryan Fox falls agonisingly short at Irish Open

    Ryan Fox falls agonisingly short at Irish Open

    Each time Knox responded, with the pair the last ones standing in a round where several players launched bids at the title. Scotland's Russell Knox is the 2018 Irish Open champion, after defeating Ryan Fox in a playoff.
    Arriba a Jamaica presidente cubano

    Arriba a Jamaica presidente cubano

    La Conferencia de jefes de Gobierno es el órgano supremo de la Comunidad del Caribe y determina su orientación política.
    Economy adds 31800 jobs in June, unemployment rate rises to 6.0%

    Economy adds 31800 jobs in June, unemployment rate rises to 6.0%

    According to Gallup, some 65 percent of Americans believe now is a good time to find a "quality job". Wage growth is barely keeping ahead of inflation, which is firming up as the economy strengthens.


Brasil: un juez ordenó liberar al expresidente Luiz Inácio Lula da Silva
Aún hay una petición para liberar a Lula pendiente en el máximo tribunal del país, el cual se encuentra en receso . Cientos de seguidores de Lula están reuniéndose en esa ciudad, exigiendo su libertad.

Guerra comercial: Rusia aplica más impuestos a productos de EEUU
Esa es la cantidad que puede compensar por ahora Rusia , según las reglas de la Organización Mundial de Comercio (OMC ). Las medidas proteccionistas provocarán daños a los exportadores rusos por unos 537 millones 600 mil dólares, admitió.

Bajó el oxígeno en la cueva donde están atrapados los niños
Como alternativa a la evacuación por buceo, los equipos realizaron unas 100 perforaciones verticales en la montaña. No olvidéis prepararme una fiesta de cumpleaños", dice otro niño , Duangphet, firmando con su apodo, Dom.

Manzanero cantará por primera vez en Cuba
A fines del pasado año se había informado que Manzanero había cancelado sus conciertos en La Habana, previstos para abril, por problemas de salud.

Chinese premier praises European Union, says free trade must be upheld
Free trade and worldwide cooperation must be upheld to avoid slowing down the global economy, the Chinese premier told peers from central and eastern Europe Saturday.

Three Takeaways from the LA Clippers’ Summer League Opener
On Thursday night, he notched his third consecutive double-double in a 15-point, 12-rebound game against the Atlanta Hawks. He's averaging 16 points and seven assists so far in the Summer League and has hit some pretty ridiculous shots.

Mercedes point finger at Ferrari's 'interesting tactics'
Brendon Hartley's wretched Formula One run has continued after he failed to finish the British Grand Prix at Silverstone . Vettel pitted from the lead, but Bottas stayed out, to lead on lap 34, as did Hamilton.

Se suspendió rescate de niños en Tailandia
La llegada el sábado de un temporal de lluvias a la región y que permanecerá durante gran parte de la semana marcó el inicio de la operación de rescate .

24,000 fans thank Russian players for fantastic World Cup display
I told him we were disappointed. "But he said we should have our eyes open and make the next steps". This trend has powered the rise of teams that traditionally do not do well in World Cups .

Tiger Woods and Phil Mickelson planning $10 million winner-takes-all clash
One thing is certain: If and when negotiations get completed, this will be a fun and unique experience for golf fans everywhere. And, with any luck, they'll be needling each other for decades to come.