Tuesday, February 14, 2012

Mysterious Hominids Genome Decoded

Svante Pääbo is a Swedish biologist specializing in evolutionary genetics
recently has succesfully decoded the Denisovans Genome 
 "German scientists found finger bones from a new species of human ancestor known as Denisova hominin that co-existed with both humans and Neanderthals only 30,000 years ago." -- Jeff Meldrum in a previous post

The Denisova hominin finger used to decode the DNA was discovered near the the Kemerovo Cave. As you remember the Kemerovo cave was part of the Russian Yeti Conference that some (BLC included) considered a publicity stunt for the upcoming ski season. Click the link to catch up on the Kemerovo Yeti Conference.

Another way this impacts Bigfootdom is the Denisovan DNA information has been compared in Ketchum's Study as well. You can read the comparison on our post Bigfoot family Tree Below is an article posted today on redorbit.com
Entire Genome Of Extinct Human Decoded
Researchers have decoded the entire genome of a fossil from an extinct species of human related to Neanderthals.
The team from the Max Planck Institute for Evolutionary Anthropology sequenced every position in the Denisovan genome about 30 times over.
They used DNA extracted from less than 10 milligrams of the finger bone discovered in Denisova Cave in southern Siberia.
Svante Pääbo and his colleagues presented a draft version of the genome in 2010 that showed this individual came from a previously unknown group of extinct humans.
Denisovans, along with their sister group the Neanderthals, are the closest extinct relatives of modern humans.
During the 2010 research, each position of the genome was determined only twice on average.  This level of resolution was only sufficient enough to establish the relationship between Denisovans to Neanderthals and modern humans.
However, they were unable to study the evolution of specific parts of the genome due to the low resolution.
Now, the team is even able to distinguish the small differences between the copies of genes it received from its mother and father.
“The genome is of very high quality”, Matthias Meyer, who developed the techniques that made this technical feat possible, said in a press release. “We cover all non-repetitive DNA sequences in the Denisovan genome so many times that it has fewer errors than most genomes from present-day humans that have been determined to date”.
This is the first complete genome sequence of an archaic human group, which could lead scientists to a better understanding of the evolutionary steps from this group to modern humans.
“We hope that biologists will be able to use this genome to discover genetic changes that were important for the development of modern human culture and technology, and enabled modern humans to leave Africa and rapidly spread around the world, starting around 100,000 years ago” Pääbo said in a press release.
The group said they plan to present a paper describing the findings later on this year.

3 comments:

  1. I have read elsewhere that the nuclear and mitochondrial DNA from denisova was confusing, because they indicated different dates for a split from homo sapiens. The conclusion was that denisova were hybrids, possibly between neaderthals and an early, Asian erectus.

    ReplyDelete
    Replies
    1. Would love to read your sources, please share. The post is based on the latest news from Svante Pääbo's research.

      Delete
    2. Sure. I follow this person's blog, and follow the links from there: http://forwhattheywereweare.blogspot.com/2010/12/explaining-denisovan-and-also.html

      Delete

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