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Thread: Female exogamy & gene pool diversification at the transition from the Final Neolithic

  1. #1
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    Female exogamy & gene pool diversification at the transition from the Final Neolithic

    http://www.pnas.org/content/early/2017/08/29/1706355114

    Abstract
    Human mobility has been vigorously debated as a key factor for the spread of bronze technology and profound changes in burial practices as well as material culture in central Europe at the transition from the Neolithic to the Bronze Age. However, the relevance of individual residential changes and their importance among specific age and sex groups are still poorly understood. Here, we present ancient DNA analysis, stable isotope data of oxygen, and radiogenic isotope ratios of strontium for 84 radiocarbon-dated skeletons from seven archaeological sites of the Late Neolithic Bell Beaker Complex and the Early Bronze Age from the Lech River valley in southern Bavaria, Germany. Complete mitochondrial genomes documented a diversification of maternal lineages over time. The isotope ratios disclosed the majority of the females to be nonlocal, while this is the case for only a few males and subadults. Most nonlocal females arrived in the study area as adults, but we do not detect their offspring among the sampled individuals. The striking patterns of patrilocality and female exogamy prevailed over at least 800 y between about 2500 and 1700 BC. The persisting residential rules and even a direct kinship relation across the transition from the Neolithic to the Bronze Age add to the archaeological evidence of continuing traditions from the Bell Beaker Complex to the Early Bronze Age. The results also attest to female mobility as a driving force for regional and supraregional communication and exchange at the dawn of the European metal ages.


    Behind a Pay wall,

    Study area

    1.png

    Samples from BBC and EBA only, not CWC.

    MtDNA only

    Perhaps full-genome paper a few months away.
    Last edited by Gravetto-Danubian; 09-05-2017 at 06:00 PM.

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    Someone on Eurogenes kind of implied that because one of the haplogroup G2a male samples was very low in steppe ancestry it means that Augsburg Bell Beaker males lacking steppe ancestry paired up with high steppe ancestry Corded Ware females. Olalde's sample OST_I4144, aka RISE563, which is P312+U152+ and older than the Augsburg G2a male had steppe ancestry very close to the German Corded Ware average (see graphic below).

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    Maternal: Haplogroup H4a1-T152C!, Maria Coto, b. ~1864, Asturias, Spain
    Mother's Paternal: Haplogroup J1+ FGC4745/FGC4766+ PF5019+, Gerardo Caprio, b. 1879, Caposele, Avellino, Campania, Italy
    Father's Maternal: Haplogroup T2b-C150T, Francisca Santa Cruz, b.1916, Garganchon, Burgos, Spain

    Avatar: Raetian bronze votive, Fritzens-Sanzeno Culture VI-V c. BC, Trentino-Alto Adige/Südtirol, Italy

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    I think they were hoping for this mythic scenario:

    Corded Ware Valkyries 2.jpg
     


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    i posted this already on another thread about the high mobility within the eastern-beaker zone
    http://www.academia.edu/2589964/Migr...Central_Europe
    and that might explain the result of kipper et al not identifying any offsprings from the non-local females and that the amesbury archer was found dead and buried in britain might also fall into that, and (since no Yhg tested?/published) in turn his Yhg reveal something about the male pop of that area; alt version would be concubines;

    the distances of the mobility are not that distant (elbe-saale/bohemia/bav.for) towards sw bavaria so the genomic structures of the 'non-local females' were however already local to central europe;
    Geno2.0NextGeneration 51%SouthernEurope 19%Western&CentralEurope 13%Scandinavia 5%AsiaMinor 4%EasternEurope 4%GreatBritain&Ireland 3%Arabia myOrigins 52%West&CentralEurope 40%SoutheastEurope 5%BritishIsles 3%WestMiddleEast DNA.Land 49%NorthwestEuropean 27%SouthEuropean 13%MediterraneanIslander 11%Sardinian myHeritage 51.8%North&WestEuropean 33.2%Italian 7.9%Greek 7.1%Balkan gencove 49%Northern&CentralEurope 36%SouthwesternEurope 15%EasternMediterranean

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    Quote Originally Posted by alexfritz View Post
    i posted this already on another thread about the high mobility within the eastern-beaker zone
    http://www.academia.edu/2589964/Migr...Central_Europe
    and that might explain the result of kipper et al not identifying any offsprings from the non-local females and that the amesbury archer was found dead and buried in britain might also fall into that, and (since no Yhg tested?/published) in turn his Yhg reveal something about the male pop of that area; alt version would be concubines;

    the distances of the mobility are not that distant (elbe-saale/bohemia/bav.for) towards sw bavaria so the genomic structures of the 'non-local females' were however already local to central europe;
    On page 31 of the 2004 study you cited, there isn't even a female bias at all. It's 52% male migrants vs 60% female. It works out to a difference of 1 or 2 people from their entire sample
    YDNA: R1b-Z220 (A7066+) (1800's Stepney, London(Bethnal Green), UK George Wood b. 1782
    maternal-grandfather YDNA: ? Gurr, George 1843, Feversham, Kent, England.
    maternal-grandmother YDNA: ? Beech, John Richard b. 1780, Lewes, England
    maternal-ggrandfather YDNA R1b-U106 Thomas, Edward b 1854, Sittingbourne, Kent
    paternal-ggf YDNA: R1b-L48. Gould, John Somerset England 1800s.
    paternal-ggf YDNA: R1b-L48. Scott, William Hamilton mdka Ireland(?) < 1800s

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    So:
    1. The genetic transition from Late Neolithic to Early Bronze was female input driven.
    2. The change lead to higher 'Steppe' in Early Bronze than in the Late Neolithic.
    3. That the Early Bronze females' ancestors at an earlier period were possibly Corded Ware.
    ?

    As I see it, geographic separation in the figure is hardly of consequence, and male partrilocality is a very common feature (it is not only the norm among Indo-Aryans but it was taboo to even step into the female's pre-marital parental home).

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    BB culture is about as male mobile as it is female mobile. This has been covered in several papers. A bit of a head scratcher here.

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    I picked up only the mtDNA of Bell Beaker samples excluding EBA samples and found out that they are distributed as follows:
    U5b2a3 < Scotland Neolithic < Western hunter
    U5b2b3a < Neolithic Sardinia < European hunter
    U5b2b4 x2 < European hunter
    U5a2b3 x2 < TRB ? < European hunter
    U4d3 < Eastern European hunter
    U5a1a1 < Eastern European hunter
    H1 < Cardial Neolithic
    J1c + J1c3g < Cardial Neolithic
    J1c1b1a < Neolithic Europe
    J1c2 < LBKT Neolithic Europe
    T2b33 < Neolithic Europe
    K1a x2 > Balcan Neolithic < Balkan hunter
    K1a4a1 < Romania Eneolithic < Balkan hunter
    H15a1 < Corded Ware Eulau < Neolithic Armenia
    H2a1 < Armenia Chalcolithic

    In autosomal terms it gives the following result:
    WHG 6/19, c. 30%
    EHG 2/19, c. 10%
    EEF 9/19, c. 50%
    CHG 2/19, c. 10%

    Does this correspond to the autosomes of German Beakers?

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    Quote Originally Posted by Kristiina View Post
    I picked up only the mtDNA of Bell Beaker samples excluding EBA samples and found out that they are distributed as follows:
    U5b2a3 < Scotland Neolithic < Western hunter
    U5b2b3a < Neolithic Sardinia < European hunter
    U5b2b4 x2 < European hunter
    U5a2b3 x2 < TRB ? < European hunter
    U4d3 < Eastern European hunter
    U5a1a1 < Eastern European hunter
    H1 < Cardial Neolithic
    J1c + J1c3g < Cardial Neolithic
    J1c1b1a < Neolithic Europe
    J1c2 < LBKT Neolithic Europe
    T2b33 < Neolithic Europe
    K1a x2 > Balcan Neolithic < Balkan hunter
    K1a4a1 < Romania Eneolithic < Balkan hunter
    H15a1 < Corded Ware Eulau < Neolithic Armenia
    H2a1 < Armenia Chalcolithic

    In autosomal terms it gives the following result:
    WHG 6/19, c. 30%
    EHG 2/19, c. 10%
    EEF 9/19, c. 50%
    CHG 2/19, c. 10%

    Does this correspond to the autosomes of German Beakers?
    No. The Steppe admixture is around 30/40%.

    This study is showing the heterogeneity of females in BBs society. The same can be guessed for CWC.

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