Monday, November 18, 2024

Ancient DNA unveils a mew line of Neandertals!

A recent study sequenced and analyzed DNA extracted from a partial skeleton of an adult male Neandertal found by archaeologist Ludovic Slimak in France's Grotte Mandrin rock shelter by Martin Sikora, who sequenced and analyzed the DNA. This Neanderthal, who had the nickname Thorin, helped the researchers make a significant discovery. Thorin's DNA had genetic divergence, leading the researchers to conclude that Thorin had been from a separate Neandetal Lineage, which evolved separately from other European Neandertals for approximately 50,000 years. What this means is that Thorin's DNA resembles closely with Neandertals that lived 100,000 years ago, rather than other Neandertals from his own time. Alongside this genetic divergence, noted from the analysis is that Thorin's DNA had no signs of gene flow or interbreeding with other homo-sapiens for about 50,000 years, indicating that his population's long-term generation isolation led to this difference in DNA.
This discovery of a new Neanderthal lineage is excellent for genetics as it helps supply new understandings of the Neanderthal's population dynamics and evolutionary history. The study reveals that Neanderthals had a complex evolutionary history, which can be hypothesized to include local extinctions and migrations like those of the homo sapiens. As stated earlier, Thorin DNA had an unusually high percentage of identical gene variants, meaning that gene flow rarely occurred. This lack of gene flow indicates that this line of Neanderthals was a small population that mated among close relatives. This genetic information of a lack of gene flow within Thorfin's DNA helps support the scenario of this Neanderthal lineage splitting apart around 105,000 years ago, which survived by mating within its small population for roughly 50,000 years.
In my opinion, This discovery of a new Neanderthal lineage is a fantastic step forward in researching the diversity of different Neanderthal cultures and languages. As with the discovery of Thorin's lineage, what is to say that there aren't any other distinct lineages of Neandertals that haven't been found? Additionally, researchers can also relook at other found Neandertal remains and potentially uncover more distinct lineages, such as Thorins, which will allow us to further our understanding of human evolution and the dynamics of prehistoric populations. WEBSITES https://www.sciencenews.org/article/ancient-dna-unveils-unknown-neandertals
https://www.discovermagazine.com/the-sciences/new-neanderthal-lineage-from-100-000-years-ago-helps-explain-their

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