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Thread: Genetic Genealogy and Ancient DNA in the News

  1. #2301
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    Quote Originally Posted by Eterne View Post
    https://www.biorxiv.org/content/early/2018/07/11/367201 - A genetic perspective on Longobard-Era migrations

    Abstract

    From the first century AD, Europe has been interested by population movements, commonly known as Barbarian migrations. Among these processes, the one involving the Longobard culture interested a vast region, but its dynamics and demographic impact remains largely unknown. Here we report 87 new complete mitochondrial sequences coming from nine early-medieval cemeteries located along the area interested by the Longobard migration (Czech Republic, Hungary and Italy). From the same locations, we sampled necropolises characterized by cultural markers associated with the Longobard culture (LC) and coeval burials where no such markers were found (NLC). Population genetics analysis and ABC modeling highlighted a similarity between LC individuals, as reflected by a certain degree of genetic continuity between these groups, that reached 70% among Hungary and Italy. Models postulating a contact between LC and NLC communities received also high support, indicating a complex dynamics of admixture in medieval Europe.
    The paper is officially published:

    https://www.nature.com/articles/s41431-018-0319-8

    A genetic perspective on Longobard-Era migrations

    Stefania Vai, Andrea Brunelli, Alessandra Modi, Francesca Tassi, Chiara Vergata, Elena Pilli, Martina Lari, Roberta Rosa Susca, Caterina Giostra, Luisella Pejrani Baricco, Elena Bedini, István Koncz, Tivadar Vida, Balázs Gusztáv Mende, Daniel Winger, Zuzana Loskotová, Krishna Veeramah, Patrick Geary, Guido Barbujani, David Caramelli & Silvia Ghirotto

    European Journal of Human Genetics (2019) | Download Citation

    Abstract

    From the first century AD, Europe has been interested by population movements, commonly known as Barbarian migrations. Among these processes, the one involving the Longobard culture interested a vast region, but its dynamics and demographic impact remains largely unknown. Here we report 87 new complete mitochondrial sequences coming from nine early-medieval cemeteries located along the area interested by the Longobard migration (Czech Republic, Hungary and Italy). From the same areas, we sampled necropoleis characterized by cultural markers associated with the Longobard culture (LC) and coeval burials where no such markers were found, or with a chronology slightly preceding the presumed arrival of the Longobards in that region (NLC). Population genetics analysis and demographic modeling highlighted a similarity between LC individuals, as reflected by the sharing of quite rare haplogroups and by the degree of genetic resemblance between Hungarian and Italian LC necropoleis estimated via a Bayesian approach, ABC. The demographic model receiving the strongest statistical support also postulates a contact between LC and NLC communities, thus indicating a complex dynamics of admixture in medieval Europe.

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  3. #2302
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    Fantastic, well written article by the NYT on the Ancient DNA Revolution and the role played by David Reich Harvard Lab, Ron Pinhasi UCD Dublin Lab and Johannes Krause Jena Lab.

    Is Ancient DNA Research Revealing New Truths — or Falling Into Old Traps?
    Geneticists have begun using old bones to make sweeping claims about the distant past. But their revisions to the human story are making some scholars of prehistory uneasy.

    Ancient DNA Reveals Massive Population Turnovers in the Humanities,” she suggested as a title, and proposed this as an abstract: “The aristocratic lab scientists arrived with their superior technology and displaced the pre-existing researchers and their primitive truth-implements and overcomplicated belief systems.”

    https://www.nytimes.com/2019/01/17/m...ogenomics.html
    Gerard Corcoran
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  5. #2303
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    Quote Originally Posted by Heber View Post
    Fantastic, well written article by the NYT on the Ancient DNA Revolution and the role played by David Reich Harvard Lab, Ron Pinhasi UCD Dublin Lab and Johannes Krause Jena Lab.

    Is Ancient DNA Research Revealing New Truths — or Falling Into Old Traps?
    Geneticists have begun using old bones to make sweeping claims about the distant past. But their revisions to the human story are making some scholars of prehistory uneasy.

    Ancient DNA Reveals Massive Population Turnovers in the Humanities,” she suggested as a title, and proposed this as an abstract: “The aristocratic lab scientists arrived with their superior technology and displaced the pre-existing researchers and their primitive truth-implements and overcomplicated belief systems.”

    https://www.nytimes.com/2019/01/17/m...ogenomics.html
    It's certainly generating considerable debate on Twitter. Razib Khan critiques it well over at GNXP - https://www.gnxp.com/WordPress/2019/01/17/d-5/

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    Heard from Facebook: Janakkala swordsman's Y-haplogroup R1b (1a1a2a 1a2c....) and mt- haplo H1(a7....?). NOTE: the results are preliminary!

    Y-haplogroup was yet updated and now it is: R1b1a1a2a1a2c1b1b1a3a1
    Last edited by teepean47; 01-19-2019 at 01:01 PM.

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    Quote Originally Posted by teepean47 View Post
    Heard from Facebook: Janakkala swordsman's Y-haplogroup R1b.
    How are you sure of the rumour?

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    Quote Originally Posted by Romilius View Post
    How are you sure of the rumour?
    They were just published and a person attending posted it to Facebook.

    http://vapriikki.fi/ei-kategoriaa/mu...vapriikissa-2/

    Google translated:

    https://translate.google.com/transla...priikissa-2%2F
    Last edited by teepean47; 01-19-2019 at 12:59 PM.

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    Quote Originally Posted by teepean47 View Post
    Heard from Facebook: Janakkala swordsman's Y-haplogroup R1b (1a1a2a 1a2c....) and mt- haplo H1(a7....?). NOTE: the results are preliminary!

    Y-haplogroup was yet updated and now it is: R1b1a1a2a1a2c1b1b1a3a1
    What version of ISOGG was used to define the haplogroup?? I was unable to find this line in the 2019 version.

    As others have stated, the constant redefining of clade labels makes it devilishly difficult to use.
    Gedmatch DNA: M032736 Gedcom: 6613110.
    Gedmatch Genesis: WH4547538
    co-administrator: Y-DNA R-U106 Haplogroup Project

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    Quote Originally Posted by Wing Genealogist View Post
    What version of ISOGG was used to define the haplogroup?? I was unable to find this line in the 2019 version.

    As others have stated, the constant redefining of clade labels makes it devilishly difficult to use.
    Yhaplo seems to be popular and it uses 2016 version.

    https://github.com/23andMe/yhaplo

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    Quote Originally Posted by Heber View Post
    Fantastic, well written article by the NYT on the Ancient DNA Revolution and the role played by David Reich Harvard Lab, Ron Pinhasi UCD Dublin Lab and Johannes Krause Jena Lab.

    Is Ancient DNA Research Revealing New Truths — or Falling Into Old Traps?
    Geneticists have begun using old bones to make sweeping claims about the distant past. But their revisions to the human story are making some scholars of prehistory uneasy.

    Ancient DNA Reveals Massive Population Turnovers in the Humanities,” she suggested as a title, and proposed this as an abstract: “The aristocratic lab scientists arrived with their superior technology and displaced the pre-existing researchers and their primitive truth-implements and overcomplicated belief systems.”

    https://www.nytimes.com/2019/01/17/m...ogenomics.html
    Reich overstating the simplicity of a population turnover is becoming a pattern here. The Spanish have rejected his simple ‘everything changed’ message too. I was pleased to read that Jena’s more nuanced complex version is more acceptable to all of the disciplines.
    Image “Westray wifie” replica of Neolithic figurine Hidden Content
    Out of 64 pre 1800 births 45% Cheshire, 1% Irish (or Scottish), 25% south Derbyshire, 13% Burton on Trent area (where 4 counties within 10 miles), 7% Shropshire, 1% Staffs, 8% Lancs. So far all British Isles despite what some testing companies say.

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  19. #2310
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    Quote Originally Posted by Judith View Post
    Reich overstating the simplicity of a population turnover is becoming a pattern here.
    I think Reich is just speaking plainly and calling them as he sees them.

    Quote Originally Posted by Judith View Post
    The Spanish have rejected his simple ‘everything changed’ message too. I was pleased to read that Jena’s more nuanced complex version is more acceptable to all of the disciplines.
    Could it be that the Immobilist Model of cultural diffusion is of long standing and dies hard?

    The fact that some people want to think of themselves and their ancestors as absolutely native to their homelands could be a factor, as well.
     


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