Thursday , August 5 2021

The researchers and the people studied the dogs as they arrived in America



URBAN – Your Poodle may have a French pedigree, but Siberian was very important for American dogs.

It is part of the University of Illinois and the Illinois Archaeological Survey survey, based on dog sites, retreating into an Illinois site located on the shores of the Mississippi River in St. Louis.

A loving, ceremonial hunting and 50 fossilized dogs contribute to telling the story, News-Gazette reports.

This code genetics not only refers to dogs, but also about humans that cross a Siberian-Alaskan area, said Ripan Malhi in anthropology and the School of Integrative Biology.

The Illinois State Survey Archaeologist found some dogs there.

Those who do not want to destroy valuable scientific and cultural resources, Malhi's team took samples of 10,000-year-old dogs, probably the oldest in America.

"The amount removed (the tooth) is the size of the cavity," he said.

Malley worked for Kelsey Witt Dillon, who led the mitochondrial DNA genome, after a trainee motherboard, as a graduate student. (He is currently a postdoctoral researcher at the California University of California.)

In a clean room – no traces of pollutants – researchers drew DNA. Another book was sequenced to create a "genomic library".

"DNA will give us millions of DNA bit," said Malhik, some of whom had long since contaminated microbes or human interference.

These first American dogs arrived in Siberia, Malhi said, and largely disappeared after a European contact.

At the time of freezing (up to 14,500 years ago), sea levels were smaller and the region between western Siberia and eastern Alaska was a land that was known today as the Bering Strait. The region is known as "Beringia", and people (and dogs) could cross the ground bridge from the lower sea level, Witt Dillon added.

Scientists discuss how original dogs generally get out of the gene pool: our ancestors can kill their breeding dogs that have been hunted or caged for livestock or have eaten in their famine.

The cause of the disease is often the same, as happened among the Americans.

In the journal "Science", researchers found that the first American dogs did not wake up by American wolves.

Probably, they wrote, dogs continued their friendship through the land bridge, connecting North Asia once from Siberia to America.

In Cahokia, an archaeological site was named Janey B. Goode, other researchers found dogs marked on their shoulders.

Malhi said marking dogs were not our best friends, but they used our co-workers, supply chariots, or other types of jobs, with continual use of North-Western sledges.

Malhi determines the genetic history of the specialty, so its articles have the titles: "Distribution of chromosomes Y from the original of North America: study the history of Atalapasque population."

He has worked closely with the British People of the First Nations in the British Columbia and Alaska, studying a vast amount of salmon resources.

Nuclear DNA and mitochondrial DNA are counted in different ways.

Nuclear DNA "Most DNA types probably think – your 23 pairs are all nuclear chromosomes, and half of them have death from your father and half of them," says Witt Dillon.

"It is inherited from your mother due to mitochondrial DNA," he said. "There are more copies than each cell in DNA, so easier it is to find old DNA samples, usually degraded and fragmented."

There are questions asked about when and where dogs are domiciled.

"Dogs probably ranged from 15,000 to 21,000 in places in Europe or Asia," said Witt Dillon. "Europe, the Middle East, Southeast Asia, and Central Asia have been suggested in dogs in places of origin, but we still have no clear answers."

Possibly the dogs were born in "places of birth".

By the way, every dog ​​that ends this dog? Mine for you, but like the great value of the sciences like phosphorized copolits.

The anthropological student graduated from UI is looking for microbial copoliths Karthik Yarlagadda, working in Malhire.

In modern studies, he knows, the proven sample has a large number of microbial agents that reflect many factors, including host genetics, diet and the environment.

"Because copoliths represent an ancient fecal sample, they are likely to still have a residual DNA DNA that dogs have had microbial dogs. This is particularly interesting, since ancient microbiomas provide an insight into the history of the individual's life." Yarlagadda said.


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