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Mammoth DNA Breaks Record for World's Oldest Sequence

The First Example of Hybrid Speciation in Ancient DNA
The new study has also amplified the ability for researchers to track the evolutionary process of speciation – the formation of new and distinct species. A
Nature press release states that this process generally occurs “over time periods that are thought to be beyond the limits of DNA research.”
A tusk from a woolly mammoth discovered in a creek bed on Wrangel Island in 2017. (Credit: Love Dalén)
Nonetheless, the scientists’ study of the mammoth DNA suggests that there was not one, but two different lineages of mammoth alive during the Early Pleistocene in the region of what is now eastern Siberia. Adycha and Chukochya are believed to be members of a species that spawned the woolly mammoth, but Krestovka appears to come from an unknown, and possibly entirely new, mammoth lineage. Tom van der Valk, the study’s lead author and a bioinformatician at the University of Uppsala in Sweden, explains the ....

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World's Oldest DNA Found in Siberian Mammoth Teeth

Geneticists uncovered DNA as much as 1.2 million years old from a northeastern Siberian mammoth's molars. ....

America Columbian , Andrei Sher , National Geographic , Swedish Center , Russian Academy Of Sciences , North America , Russian Academy , Love Dal , அமெரிக்கா கொலம்பியன் , ஆண்ட்ரி ஷெர் , தேசிய புவியியல் , ஸ்விட்ச் மையம் , ரஷ்ய கலைக்கழகம் ஆஃப் அறிவியல் , வடக்கு அமெரிக்கா , ரஷ்ய கலைக்கழகம் , காதல் பருப்பு ,

World's oldest DNA sheds light on how mammoths evolved: Study

Scientists have sequenced the world s oldest DNA recovered from the remains of mammoths that are up to 1.2 million years old, an advance which sheds light on how the extinct giant mammal adapted to cold weather.
Until this discovery, the oldest genomic data recovered so far was from a horse specimen dated to 780560 thousand years ago, the study, published in the journal Nature, noted.
According to the scientists, including those from the Swedish Museum of Natural History, this is the first time that DNA has been sequenced and authenticated from million-year-old specimens.
This DNA is incredibly old. The samples are a thousand times older than Viking remains, and even pre-date the existence of humans and Neanderthals, said study senior author Love Dalen, a Professor of evolutionary genetics at the Centre for Palaeogenetics in Stockholm, Sweden. ....

United States , Patricia Pecnerova , Centre For Palaeogenetics , Swedish Museum Of Natural History , Swedish Museum , Natural History , Love Dalen , North America , Ice Age , Prehistoric Mammals , Woolly Mammoth , Columbian Mammoth , Senior Author , Study Co Lead Author , Centre For Palaeogenetics In Stockholm , Lead Author , Tom Van Der Valk , ஒன்றுபட்டது மாநிலங்களில் , ஸ்விட்ச் அருங்காட்சியகம் ஆஃப் இயற்கை வரலாறு , ஸ்விட்ச் அருங்காட்சியகம் , இயற்கை வரலாறு , காதல் டேலன் , வடக்கு அமெரிக்கா , பனி வாழ்நாள் , ப்ரிஹிஸ்டாரிக் பாலூட்டிகள் , கம்பளி மாமத் ,

World's oldest DNA sequenced from steppe mammoths

Teeth from mammoths buried in the Siberian permafrost for more than a million years have yielded the world s oldest DNA ever sequenced, according to a study published on Wednesday, shining the genetic searchlight into the deep past. ....

Russian Academy Of Sciences , Centre For Palaeogenetics , Ice Age , Love Dalen , Russian Academy , ரஷ்ய கலைக்கழகம் ஆஃப் அறிவியல் , பனி வாழ்நாள் , காதல் டேலன் , ரஷ்ய கலைக்கழகம் ,

Scientists Have Sequenced Mammoth DNA That's Over a Million Years Old

Scientists Have Sequenced Mammoth DNA That s Over a Million Years Old
17 FEBRUARY 2021
In a feat right at the limits of our scientific capabilities, an international team of geneticists has recovered and sequenced the oldest DNA to date.
From the teeth of three ancient mammoths that roamed Siberia between 700,000 and 1.2 million years ago, the researchers extracted extremely degraded DNA, and pieced it back together to reveal a previously unknown genetic mammoth lineage.

Previously, the oldest recovered DNA sample was from a horse bone found in the Yukon permafrost, dating back to between 560,000 and 780,000 years ago.
This DNA is incredibly old, said evolutionary geneticist Love Dalén of the Centre for Palaeogenetics in Sweden. The samples are a thousand times older than Viking remains, and even pre-date the existence of humans and Neanderthals. ....

United States , Uppsala Lan , Uppsala University , University Of Copenhagen , Centre For Palaeogenetics , Love Dal , North America , Bering Land Bridge , Amp Quot , ஒன்றுபட்டது மாநிலங்களில் , பல்கலைக்கழகம் ஆஃப் கோபெந்ஹேகந் , காதல் பருப்பு , வடக்கு அமெரிக்கா , பெரிங் நில பாலம் ,