Sitting Bull hair samples helped scientists confirm that South dakota The man is the great-grandson of a famous Native American leader in the 19th century and uses a new method to analyze the lineage of his family using DNA fragments from the deceased.
Researchers said Wednesday that DNA from hair stored at the Smithsonian Castle in Washington confirmed a family relationship between Sitting Bull, who died in 1890, and Arnie Lapointe, 73, of Reed, South Dakota. Stated.
“I think this DNA study is another way to identify a direct relationship with my great-grandfather,” said La Pointe, who has three sisters. “As far as I can remember, people have questioned their relationship with our ancestors. These people are just the pain of where you are sitting, and you probably doubt these discoveries as well. . “
This study is the first to demonstrate a family relationship between a living individual and a historical person using the DNA of a deceased person, and others who can extract DNA from bodies such as hair. It shows the possibility of showing the relationship with. Teeth and bones.
The new method was developed by scientists led by Eske Willerslev, director of the Lundbeck Foundation GeoGenetics Center at the University of Cambridge.
Researchers took 14 years to discover a way to extract usable DNA from degraded hair after it was stored at room temperature before being handed over from the Smithsonian to Lapointe and his sisters in 2007.
Willerslev said he had read a magazine in which the Smithsonian turned over a bunch of hair from Sitting Bull’s scalp and reached out to Lapointe.
“LaPointe asked me to extract the DNA from it and compare it to his DNA to establish a relationship,” said Willerslev, senior author of the study published in Science Advances. “There was little hair and very limited DNA. Based on the limited ancient DNA, it took a long time to develop a method that could be compared to the methods of living people over multiple generations. “
The new technology has focused on what is known as autosomal DNA in gene fragments extracted from hair. In conventional analysis, the specific DNA on the Y chromosome is inherited by the male lineage, or the specific DNA of the mitochondria (the driving force of the cell) is inherited from the mother to the child. Instead, autosomal DNA is not sex-specific.
“There was a way, but it required a significant amount of DNA or could only reach the level of grandchildren,” Willerslev said. “Our new method allows us to use a small amount of DNA to establish a deeper family relationship.”
Sitting Bull, whose name is Lakota-Iyotanka, helped bring the Sioux of the Great Plains together against white settlers trying to seize the land of the tribe and US troops trying to expel them. Native American From their territory. He led a Native American warrior who wiped out the federal army led by George Custer at the Battle of the Little Bighorn in 1876 in what is now Montana, USA.
DNA from Sitting Bull’s hair confirms that the American is his great-grandson.Native American
Source link DNA from Sitting Bull’s hair confirms that the American is his great-grandson.Native American