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Thread: Eurasian Steppe Population Genetics

  1. #1
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    Eurasian Steppe Population Genetics

    Link
    https://www.ebi.ac.uk/ena/data/view/PRJEB20658

    Description

    "The Eurasian steppe, stretching about 8000 kilometres from Hungary and Romania in the west to Mongolia and western China in the east, is culturally among the most dynamic areas in the world. In the past four millennia, it has been variously dominated by Iranian-, Turkic- and Mongolic-speaking groups, and its temperate grasslands have been a crossroad for extensive movements of peoples, goods, and ideas between Europe, Siberia, South and East Asia. In order to understand the genetic history of the Eurasian steppe populations, we have sequenced 137 ancient genomes (~1X average coverage) spanning a 4000 years time series. We also genotyped 502 individuals from 16 contemporary self-reported ethnicities. We find evidence of a highly dynamic population history; the Iranian-speaking Scythians that dominated the Eurasian steppe throughout the Iron Age (~1 millennium BCE to common era) emerged following admixture between Late Bronze Age herders of western Eurasian descent and East Asian hunter-gatherers. The steppe nomads later further admixed with Turkic-speaking groups of East Asian ancestry that spread westward across the steppe in multiple waves: firstly, the Xiongnu confederations that emerged in Mongolia around the 3nd/2nd century BC; secondly, the Huns (4-5th century CE), infected with plague basal to the Justinian Y. pestis strain that destabilized the eastern Roman Empire in the 6th century CE; and thirdly during various short term dynasties, including the Mongol Empire of Genghis Khan and his descendants. These recent historical events transformed the Eurasian steppe populations from being Indo-European speakers of largely western Eurasian ancestry to the present-day Turkic-speaking groups, primarily of East Asian ancestry".

    Y haplogroup calls are here but no dates or location are given for some reason.

    https://docs.google.com/spreadsheets...t?usp=drivesdk

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    Because the full paper is not out yet.

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    There were some mentions on molgen about where some samples came from, but they were deleted, apparently because that would mean breach of embargo.

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  7. #4
    R1b-U106 on the Steppe? U wot m8.

    If it's part of Corded Ware, with R1b-P312 being Bell Beaker, that would be amazing. Doubt it though.

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    Can someone analyze DA117 autosomally? If some information is correct, this sample may be interesting to me.

    UPD:
    > DA28 C-Y4541

    I see a distant cousin. Cool, if only I knew from when/where he is.
    Last edited by rozenfeld; 04-17-2018 at 12:42 AM.

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    I wonder if these Y results can be sorted by number, and a grouping can be formed. Autosomally I wonder if this will make sense.

    Group 1

    DA13
    DA16
    DA19

    Group 2

    DA28
    DA30
    DA31

    Group 3

    DA41
    DA43
    DA45
    DA47
    DA51
    DA54
    DA57
    DA58
    DA59
    DA65

    Group 4

    DA74
    DA81
    DA85
    DA86
    DA87
    DA92
    DA93
    DA95
    DA98
    DA101
    DA105
    DA106

    Group 5

    DA111
    DA117
    DA119
    DA124
    DA125
    DA126
    DA127
    DA129
    DA134
    DA141
    DA142

    Group 6

    DA161
    DA162

    Group 7

    DA171
    DA178

    Group 8

    DA190
    DA198
    DA203
    DA204

    Group 9

    DA222
    DA228
    DA230
    DA239

    Group 10

    DA343
    DA353
    DA356
    DA361

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    Quote Originally Posted by Ethereal View Post
    R1b-U106 on the Steppe? U wot m8.

    If it's part of Corded Ware, with R1b-P312 being Bell Beaker, that would be amazing. Doubt it though.
    The R1b-U106 sample may possibly be from the far western edge of the Steppe...We will have to wait and see.

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    Quote Originally Posted by Principe View Post
    I wonder if these Y results can be sorted by number, and a grouping can be formed. Autosomally I wonder if this will make sense.

    Group 1

    DA13
    DA16
    DA19

    Group 2

    DA28
    DA30
    DA31

    Group 3

    DA41
    DA43
    DA45
    DA47
    DA51
    DA54
    DA57
    DA58
    DA59
    DA65

    Group 4

    DA74
    DA81
    DA85
    DA86
    DA87
    DA92
    DA93
    DA95
    DA98
    DA101
    DA105
    DA106

    Group 5

    DA111
    DA117
    DA119
    DA124
    DA125
    DA126
    DA127
    DA129
    DA134
    DA141
    DA142

    Group 6

    DA161
    DA162

    Group 7

    DA171
    DA178

    Group 8

    DA190
    DA198
    DA203
    DA204

    Group 9

    DA222
    DA228
    DA230
    DA239

    Group 10

    DA343
    DA353
    DA356
    DA361
    Yes maybe we can get some sort of idea which ancient groups certain samples belonged to via their autosomal results.

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  17. #9
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    Quote Originally Posted by J Man View Post
    Yes maybe we can get some sort of idea which ancient groups certain samples belonged to via their autosomal results.
    Yeah exactly I see it as a good start.

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  19. #10
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    DA-19 is a Scythian ?

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