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Thread: Genetic Genealogy and Ancient DNA in the News

  1. #2551
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    Quote Originally Posted by Principe View Post
    Ancient DNA from chewing gums connects material culture and genetics of Mesolithic hunter-gatherers in Scandinavia

    Natalija Kashuba, Emrah Kirdök, Hege Damlien, Mikael A. Manninen, Bengt Nordqvist, Per Persson, Anders Götherström

    Abstract

    The discussion of an early postglacial dual-route colonization of the Scandinavian Peninsula is largely based on associating genomic data to an early dispersal of lithic technology from the East European Plain. However, a direct link between the two has been lacking. We tackle this problem by analysing human DNA from birch bark pitch mastics, chewing gums, from Huseby Klev, a site in western Sweden with eastern lithic technology. We generate genome-wide data for three individuals, and show their affinity to the Scandinavian hunter-gatherers, or more precisely, to individuals from postglacial Sweden. Our samples date to 9880-9540 calBP, expanding the temporal range of this genetic group as well as its distribution. Human DNA from mastics provides a clear connection between material culture and genetic data. We also propose that DNA from different types of mastics can be used to study environment, ecology, and oral microbiome of prehistoric populations.

    https://www.biorxiv.org/content/early/2018/12/03/485045

    All three belong to Mtdna U5a2d
    Paper officially published:

    https://www.nature.com/articles/s42003-019-0399-1

    Article | Open | Published: 15 May 2019

    Ancient DNA from mastics solidifies connection between material culture and genetics of mesolithic hunter–gatherers in Scandinavia

    Natalija Kashuba, Emrah Kırdök, Hege Damlien, Mikael A. Manninen, Bengt Nordqvist, Per Persson & Anders Götherström

    Communications Biology 2, Article number: 185 (2019)

    Abstract

    Human demography research in grounded on the information derived from ancient DNA and archaeology. For example, the study on the early postglacial dual-route colonisation of the Scandinavian Peninsula is largely based on associating genomic data with the early dispersal of lithic technology from the East European Plain. However, a clear connection between material culture and genetics has been lacking. Here, we demonstrate that direct connection by analysing human DNA from chewed birch bark pitch mastics. These samples were discovered at Huseby Klev in western Sweden, a Mesolithic site with eastern lithic technology. We generated genome-wide data for three individuals, and show their affinity to the Scandinavian hunter–gatherers. Our samples date to 9880-9540 calBP, expanding the temporal range and distribution of the early Scandinavian genetic group. We propose that DNA from ancient mastics can be used to study environment and ecology of prehistoric populations.

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  3. #2552
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    I've posted details in our Medieval history section on the first news in several years from the study at Winchester Cathedral of a “royal mausoleum” believed to hold remains including several Anglo-Saxon kings, Cnut and William Rufus. At least 23 skeletons have now been partially reconstructed (carbon dating calibrated for the “marine reservoir” effect was completed a while back) and work is continuing to identify the bodies. No mention of aDNA yet but it looks likely to be forthcoming (Bristol University was reported to be involved on this front) and “exciting developments” are promised; so here's hoping for a lively discussion in the near future...
    Living DNA Cautious mode:
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    Y line: Peak District, England. Big Y match: Scania, Sweden; TMRCA 1,280 ybp (YFull);
    mtDNA: traces to Glamorgan, Wales, 18th century. Mother's Y line (Wales): R-L21 L371

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    Quote Originally Posted by JonikW View Post
    I've posted details in our Medieval history section on the first news in several years from the study at Winchester Cathedral of a “royal mausoleum” believed to hold remains including several Anglo-Saxon kings, Cnut and William Rufus. At least 23 skeletons have now been partially reconstructed (carbon dating calibrated for the “marine reservoir” effect was completed a while back) and work is continuing to identify the bodies. No mention of aDNA yet but it looks likely to be forthcoming (Bristol University was reported to be involved on this front) and “exciting developments” are promised; so here's hoping for a lively discussion in the near future...
    Cnut was a Dane and William Rufus was a Norman, son of William the Conqueror.

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    Pertaining to the Winchester Cathedral post above

    "Bones unidentified for centuries may belong to one of England’s most historically important queens"

    https://www.independent.co.uk/news/u...-a8915861.html

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    From the abstract book of the upcoming EAAPP conference in Nairobi.

    Abstract
    Ancient DNA reveals a multi-step spread of food production into eastern Africa Food production spread into Eastern Africa beginning ~5000 years ago, transforming economic and social landscapes into a mosaic of foragers, herders, and later, farmers.

    Mary Prendergast, Elizabeth Sawchuck, Mark Lipson, Christine Ogola, Emmanuel Ndiema, Fredrick Kyalo Manthi, David Reich

    Complex exchanges among foragers and food producers have made it difficult to discern how these processes unfolded, and to determine the extent to which people moved with domestic animals and plants. In order to examine the genetic impacts of the spreads of herding and farming, we analysed genome-wide data from 41 individuals buried in association with Later Stone Age, Pastoral Neolithic (PN), and Iron Age contexts in what are now Kenya and Tanzania Our results support a multi-phase model in which admixture between northeastern African-related peoples and eastern African foragers formed multiple pastoralist groups, including a genetically homogeneous PN cluster. Additional admixture with northeastern and western African-related groups occurred by the Iron Age.. These findings support several movements of food producers, while rejecting previous suggestions of minimal admixture with foragers and of genetic differentiation between makers of distinct PN artifactual traditions. Ancient DNA offers a new source of information about eastern African Holocene prehistory, and an important next direction is to integrate this information rigorously with insights provided by the longer-established disciplines of archaeology and linguistics.
    Last edited by blackflash16; 05-17-2019 at 10:22 PM.

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    Quote Originally Posted by JonikW View Post
    I've posted details in our Medieval history section on the first news in several years from the study at Winchester Cathedral of a “royal mausoleum” believed to hold remains including several Anglo-Saxon kings, Cnut and William Rufus. At least 23 skeletons have now been partially reconstructed (carbon dating calibrated for the “marine reservoir” effect was completed a while back) and work is continuing to identify the bodies. No mention of aDNA yet but it looks likely to be forthcoming (Bristol University was reported to be involved on this front) and “exciting developments” are promised; so here's hoping for a lively discussion in the near future...
    Maybe we'll even get some more I1 to add to the list. That'd be neat. It should be really interesting to see when and if they finally do analyze some DNA.

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  13. #2557
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    Via Chris Stringers twitter account:

    https://www.nature.com/articles/s41559-019-0900-8

    Understanding the reason(s) behind changes in human mobility strategies through space and time is a major challenge in palaeoanthropology. Most of the time this is due to the lack of suitable temporal sequences of human skeletal specimens during critical climatic or cultural shifts. Here, we present temporal variations in the Sr isotope composition of 14 human deciduous teeth and the N and C stable isotope ratios of four human remains from the Grotta Paglicci site (Apulia, southern Italy). The specimens were recovered from the Gravettian and Epigravettian layers, across the Last Glacial Maximum, and dated between 31210–33103 and 18334–19860 yr cal bp (2σ). The two groups of individuals exhibit different 87Sr/86Sr ratios and, while the Gravettians are similar to the local macro-fauna in terms of Sr isotopic signal, the Epigravettians are shifted towards higher radiogenic Sr ratios. These data, together with stable isotopes, can be explained by the adoption of different mobility strategies between the two groups, with the Gravettians exploiting logistical mobility strategies and the Epigravettians applying residential mobility.
    While not genetics, the implications for Epigravettians living +/-19.000 years ago being not wildly mobile could possibly be that the Villabruna cluster may have originated in Italy. Also, if they sampled Strontium, there may a chance they looked for DNA as well.

    EDIT: If so, they will resample Paglicci12 and Paglicci25.

    Bone pretreatment method used on the two Gravettian individuals (PA12 and PA25) is the one established by Talamo and Richards (2011) and was performed at the Max Planck Institute for Evolutionary Anthropology in Leipzig.
    Last edited by epoch; 05-20-2019 at 10:44 AM.

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  15. #2558
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    Quote Originally Posted by J1 DYS388=13 View Post
    Pertaining to the Winchester Cathedral post above

    "Bones unidentified for centuries may belong to one of England’s most historically important queens"

    https://www.independent.co.uk/news/u...-a8915861.html
    If these remains are actually from Emma and if they are going to be analysed, this is a huge event for us Normans. Emma was a grand-daughter of Rolf/Rou/Rollo ( perhaps Gönguhrólfur Rognvalsson ) first ruler of Normandy. Emma is a great figure of England's History, but she is also one of Normandy's, even if the French never mention her (of course).
    En North alom, de North venom
    En North fum naiz, en North manom

    (Roman de Rou, Wace, 1160-1170)

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    Quote Originally Posted by anglesqueville View Post
    If these remains are actually from Emma and if they are going to be analysed, this is a huge event for us Normans. Emma was a grand-daughter of Rolf/Rou/Rollo ( perhaps Gönguhrólfur Rognvalsson ) first ruler of Normandy. Emma is a great figure of England's History, but she is also one of Normandy's, even if the French never mention her (of course).
    I have Emma ("Flower of Normandy") in my tree at Ancestry as my 28th Great-Aunt.

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    Quote Originally Posted by Baltimore1937 View Post
    I have Emma ("Flower of Normandy") in my tree at Ancestry as my 28th Great-Aunt.
    I feel very honoured that one of Emma's relatives is among us. You should add Normandy to your flags.
    En North alom, de North venom
    En North fum naiz, en North manom

    (Roman de Rou, Wace, 1160-1170)

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