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Thread: Genetic Genealogy & Ancient DNA in the News (DISCUSSION ONLY)

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    Quote Originally Posted by Shuzam87 View Post
    Genetic continuity of Bronze Age ancestry with increased Steppe-related ancestry in Late Iron Age Uzbekistan

    Vikas Kumar, E Andrew Bennett, Dongyue Zhao, Yun Liang, Yunpeng Tang, Meng Ren, Qinyan Dai, Xiaotian Feng, Peng Cao, Ruowei Yang, Feng Liu, Wanjing Ping, Ming Zhang, Manyu Ding, Melinda A Yang, Berdimurodov Amridin, Hasanov Muttaliu, Jianxin Wang, Qiaomei Fu

    https://doi.org/10.1093/molbev/msab216

    Abstract

    While Uzbekistan and Central Asia are known for the well-studied Bronze Age civilization of Bactria-Margiana Archaeological Complex (BMAC), the lesser-known Iron Age was also a dynamic period that resulted in increased interaction and admixture among different cultures from this region. To broaden our understanding of events which impacted the demography and population structure of this region, we generated 27 genome-wide SNP capture datasets of Late Iron Age individuals around the Historical Kushan time period (∼2100-1500 BP) from three sites in South Uzbekistan. Overall, Bronze Age ancestry persists into the Iron Age in Uzbekistan, with no major replacements of populations with Steppe-related ancestry. However, these individuals suggest diverse ancestries related to Iranian farmers, Anatolian farmers and Steppe herders, with a small amount of West European Hunter Gatherer, East Asian and South Asian Hunter Gatherer ancestry as well. Genetic affinity towards the Late Bronze Age Steppe herders and a higher Steppe-related ancestry than that found in BMAC populations suggest an increased mobility and interaction of individuals from Northern Steppe in a Southward direction. In addition, a decrease of Iranian farmers and an increase of Anatolian farmer-like ancestry in Uzbekistan Iron Age individuals were observed compared to the BMAC populations from Uzbekistan. Thus, despite continuity from the Bronze Age, increased admixture played a major role in the shift from the Bronze to the Iron Age in southern Uzbekistan. This mixed ancestry is also observed in other parts of the Steppe and Central Asia, suggesting more widespread admixture among local populations.
    Nice to see that the Chinese labs are starting to run international collaborations as well (i.e. archaeologists from other countries are choosing to send samples to Fu Qiaomei to be sequenced and analyzed there). Will lift some bottlenecks for sure.
    Quoted from this Forum:

    "Which superman haplogroup is the toughest - R1a or R1b? And which SNP mutation spoke Indo-European first? There's only one way for us to find out ... fight!"

    " A Basal Eurasian and an Aurignacian walk into a bar... "

    " No, you are in the wrong... I really hope that you are not jumping on my thread with intent to harass me, just like other "receiving comitee", that unites in classic bullying unity, which makes me sad about such people, deprived of love etc.... "

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    Quote Originally Posted by Ryukendo View Post
    Nice to see that the Chinese labs are starting to run international collaborations as well (i.e. archaeologists from other countries are choosing to send samples to Fu Qiaomei to be sequenced and analyzed there). Will lift some bottlenecks for sure.
    Nice! PDF won't download for me though unfortunately.

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    Quote Originally Posted by Ryukendo View Post
    Nice to see that the Chinese labs are starting to run international collaborations as well (i.e. archaeologists from other countries are choosing to send samples to Fu Qiaomei to be sequenced and analyzed there). Will lift some bottlenecks for sure.
    Most of the samples seem low coverage, but there is considerable diversity in the haplogroups. Hopefully there are some surprises.


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    Quote Originally Posted by pegasus View Post
    Most of the samples seem low coverage, but there is considerable diversity in the haplogroups. Hopefully there are some surprises.

    Hope the raw data can be analyzed soon.

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    The database accession page for these new Uzbekistan samples says they won't be available until May 2023.
    Ελευθερία ή θάνατος.

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    ^Oufffff lol.

  11. #4957
    It's getting harder and harder to actually gain access to Ancient samples (in the same manner that modern samples have become almost impossible). I still can't believe the Nubian samples still haven't dropped - doesn't look like they even will. Shame about the Uzbeks.

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    Quote Originally Posted by Michalis Moriopoulos View Post
    The database accession page for these new Uzbekistan samples says they won't be available until May 2023.
    The Eigenstrat dataset is on the ftp site so maybe they will release rest of the data before that date.

    ftp://download.big.ac.cn/gsa-human/HRA000810/processed

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    It is interesting that the Alans are very similar to these new samples of the Kushan period from Uzbekistan

    Uz-IA.jpg

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    Quote Originally Posted by VladimirTaraskin View Post
    It is interesting that the Alans are very similar to these new samples of the Kushan period from Uzbekistan

    Uz-IA.jpg
    Using formal statistics to measure shared drift, Alan_MA are similar to modern Ossetians and other North-Caucasian populations, while the published Kushan from Tajikistan are closer to BA/IA populations from Central Asia like TKM_IA.

     

     


    It says they only used 20k SNPs during the PCA run, and it's having trouble separating Iran_N/CHG judging by how much the individuals from different groups overlap with each other.
    YDNA (P): R-Y33
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