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Thread: Lazaridis et al: The genetic structure of the world's first farmers (pre-print)

  1. #51
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    While the Early/Middle Bronze Age ‘Yamnaya’-related group (Steppe_EMBA) is a good genetic
    match (together with Neolithic Iran) for ANI, the later Middle/Late Bronze Age steppe population
    (Steppe_MLBA) is not. Steppe_MLBA includes Sintashta and Andronovo populations who have been
    proposed as identical to or related to ancestral Indo-Iranians9,19, as well as the Srubnaya from eastern
    Europe which are related to South Asians by their possession of Y-chromosome haplogroup
    R1a1a1b2-Z935. A useful direction of future research is a more comprehensive sampling of ancient
    DNA from steppe populations, as well as populations of central Asia (east of Iran and south of the
    steppe), which may reveal more proximate sources of the ANI than the ones considered here, and of
    South Asia to determine the trajectory of population change in the area directly.
    (Supplementary Information Page 123)

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    Quote Originally Posted by jesus View Post
    They should have included some SSA samples in their admixture test and some levantine farmers, especially for the makrani samples. But we'll find out soon enough, anyway.
    Last edited by Arbogan; 06-17-2016 at 10:10 AM.

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    Looks like Iranian samples from Mesolithic to Late Neolithic forms a cluster while Iranian Chalcolithic clusters with CHG. Still difference is minor. Iran_N outlier (=Iran Recent) clusters with Ancient Armenian samples.

    Last edited by MfA; 06-17-2016 at 10:28 AM.
    E-M84>FGC18389>FGC18413>FGC18401>FGC18422>Y99171 tMRCA 2550ybp

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    Quote Originally Posted by nsdeonia View Post
    While the Early/Middle Bronze Age ‘Yamnaya’-related group (Steppe_EMBA) is a good genetic
    match (together with Neolithic Iran) for ANI, the later Middle/Late Bronze Age steppe population
    (Steppe_MLBA) is not. Steppe_MLBA includes Sintashta and Andronovo populations who have been
    proposed as identical to or related to ancestral Indo-Iranians9,19, as well as the Srubnaya from eastern
    Europe which are related to South Asians by their possession of Y-chromosome haplogroup
    R1a1a1b2-Z935. A useful direction of future research is a more comprehensive sampling of ancient
    DNA from steppe populations, as well as populations of central Asia (east of Iran and south of the
    steppe), which may reveal more proximate sources of the ANI than the ones considered here, and of
    South Asia to determine the trajectory of population change in the area directly.
    (Supplementary Information Page 123)
    Interesting you mention that. Because according to the latest Radiocarbon dating , an interesting pattern emerges :

    1) the Ghandara Grave culture dates to 2200 BC
    2) its supposed ancestor : the Andronovo and related cultures date to 1800 BC at earliest, of which the earliest are in the forest-steppe/ north steppe rather than toward Central Asia

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  9. #55
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    J man kudos to you they found haplgroup E in natufian farmers i am in shock man i think it is even m123 i was so wrong
    best regards
    adam

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    Quote Originally Posted by Gravetto-Danubian View Post
    The gaping whole (from a near east perspective) remains Majkop and Kura-Arax genomes
    Perhaps the Iran-related admixture found in Steppe.

    All figures are not fitting well to a direct contribution from Iran to the Steppe, even if admixture proportions are tempting in that way.

    I suppose we can also conclude that R1a and R1b are probably not from Near East.

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    Looks like Iranian chalcolithic is a better fit to Yamnaya than CHG. Iranian chalcolithic also looks important for Anatolian chalcolithic + Levant Bronze Age.

    Steppe EMBA = Yamnaya


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    Quote Originally Posted by ffoucart View Post
    Perhaps the Iran-related admixture found in Steppe.

    All figures are not fitting well to a direct contribution from Iran to the Steppe, even if admixture proportions are tempting in that way.
    yes some more samples will fine-tune the details, but what this study shows was already obvious 2 years ago, IMHO


    I suppose we can also conclude that R1a and R1b are probably not from Near East.
    No disagreements there.
    Fred owes you a beer, or is it red wine ?
    Last edited by Gravetto-Danubian; 06-17-2016 at 10:43 AM.

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    Quote Originally Posted by jesus View Post
    Looks like Iranian chalcolithic is a better fit to Yamnaya than CHG. Iranian chalcolithic also looks important for Anatolian chalcolithic + Levant Bronze Age.

    Steppe EMBA = Yamnaya

    It might be an artifact of CHG + Balkan admixture.

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    passa kudos to you they found haplogroup E basal that is not e1b1 truly amazing your theory that haplogroup E originated in euroasia might be true
    best regards
    adam

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