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Thread: Genetic Genealogy and Ancient DNA in the News

  1. #1481
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    Quote Originally Posted by Agamemnon View Post
    Already opened a thread for this paper: http://www.anthrogenica.com/showthre...er-et-al-2017)
    Didn't see it. Anyway, it's good that this can also be found here for reference, don't ya think?
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    Ancestral paternal origin: Roman-era Egyptian/Levantine
    Ancestral maternal origin: Langobardic

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    There are rumours that say that the release of a new paper related with the Mycenaean civilization is imminent.

    Are this rumours true?

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  5. #1483
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    https://www.theguardian.com/science/...weekly-podcast

    The Bell-Beaker folk - Science Weekly podcast

    Hannah Devlin looks at a genome study that may explain the spread of bell-shaped pottery beakers across Europe 4,500 years ago

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  7. #1484
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    This is behind a paywall (http://www.sciencedirect.com/science...52409X17302195):

    Origin of an obsidian scraper at Yabroud Rockshelter II (Syria): Implications for Near Eastern social networks in the early Upper Palaeolithic

    Abstract:

    Identifying the movement of lithic materials to reconstruct social networks has been a mainstay of research into Palaeolithic cognition and behavior, but such datasets are often predicated on studies of cherts and similar siliceous rocks, the origins of which can be difficult to establish conclusively. Yabroud Rockshelter II (YR2) in southern Syria contained stratified Middle and Upper Palaeolithic layers and, therefore, played a key role in defining the Levantine Palaeolithic. One obsidian scraper was found in Layer 4, which, via techno-typological correlations with nearby sites, dates to ∼ 41–32 ka. Here we report our attribution of this scraper, based on its elemental analysis, to the Komürcü outcrops at Göllü Dağ volcano in central Turkey, ≥ 700 km on foot. This finding has three important implications. First, the earliest transport of obsidian into the Levant is usually associated with the Epipalaeolithic Natufian cultural complex (∼ 14.5–11.5 ka); however, the phenomenon dates farther back to a period following the Middle to Upper Palaeolithic transition. Second, Layer 4 is roughly contemporaneous with Layer C at Shanidar Cave in northern Iraq, where two obsidian flakes were sourced to eastern Turkey and/or the Caucasus, suggesting similar scales of interaction across the landscape. Lastly, the chert assemblage is presumed to be local (≤ 10 km), but the obsidian scraper suggests that there are other far-travelled artifacts, underscoring that visual identification of cherts might be underestimating the extent of Late Pleistocene mobility and networks.


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    Last edited by King; 05-29-2017 at 12:49 AM.

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  9. #1485
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    Now more or less fanciful interpretations of today's reading at the Annual Congress of the European Society of Human Genetics by Eran Elhaik of Sheffield University "From Lost Empires to Modern Cities with Ancient GPS" are bouncing on various world websites...

    https://www.eurekalert.org/pub_relea...-gtm052417.php

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    Egyptian aDNA

    Ancient Egyptian mummy genomes suggest an increase of Sub-Saharan African ancestry in post-Roman periods

    Egypt, located on the isthmus of Africa, is an ideal region to study historical population dynamics due to its geographic location and documented interactions with ancient civilizations in Africa, Asia and Europe. Particularly, in the first millennium BCE Egypt endured foreign domination leading to growing numbers of foreigners living within its borders possibly contributing genetically to the local population. Here we present 90 mitochondrial genomes as well as genome-wide data sets from three individuals obtained from Egyptian mummies. The samples recovered from Middle Egypt span around 1,300 years of ancient Egyptian history from the New Kingdom to the Roman Period. Our analyses reveal that ancient Egyptians shared more ancestry with Near Easterners than present-day Egyptians, who received additional sub-Saharan admixture in more recent times. This analysis establishes ancient Egyptian mummies as a genetic source to study ancient human history and offers the perspective of deciphering Egypt’s past at a genome-wide level.

    3 Y-DNA samples obtained. 1 was E-V22 and 2 were Y-DNA Haplogroup J Supplementary table 3

    https://www.nature.com/articles/ncomms15694

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    http://www.pnas.org/content/114/22/5554.full

    News Feature: Is theory about peopling of the Americas a bridge too far?

    Traci Watson, Science Writer

    Review article, nothing new, but may be interesting as a snapshot of modern thought regarding populating America.

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  15. #1488
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    Unsuccessful attempt to get ancient DNA:

    http://journals.plos.org/plosone/art...l.pone.0178834

    A matter of months: High precision migration chronology of a Bronze Age female

    Karin Margarita Frei , Chiara Villa, Marie Louise Jĝrkov, Morten E. Allentoft, Flemming Kaul, Per Ethelberg, Samantha S. Reiter, Andrew S. Wilson, Michelle Taube, Jesper Olsen, Niels Lynnerup, Eske Willerslev, Kristian Kristiansen, Robert Frei

    Published: June 5, 2017
    https://doi.org/10.1371/journal.pone.0178834

    Abstract

    Establishing the age at which prehistoric individuals move away from their childhood residential location holds crucial information about the socio dynamics and mobility patterns in ancient societies. We present a novel combination of strontium isotope analyses performed on the over 3000 year old “Skrydstrup Woman” from Denmark, for whom we compiled a highly detailed month-scale model of her migration timeline. When combined with physical anthropological analyses this timeline can be related to the chronological age at which the residential location changed. We conducted a series of high-resolution strontium isotope analyses of hard and soft human tissues and combined these with anthropological investigations including CT-scanning and 3D visualizations. The Skrydstrup Woman lived during a pan-European period characterized by technical innovation and great social transformations stimulated by long-distance connections; consequently she represents an important part of both Danish and European prehistory. Our multidisciplinary study involves complementary biochemical, biomolecular and microscopy analyses of her scalp hair. Our results reveal that the Skrydstrup Woman was between 17–18 years old when she died, and that she moved from her place of origin -outside present day Denmark- to the Skrydstrup area in Denmark 47 to 42 months before she died. Hence, she was between 13 to 14 years old when she migrated to and resided in the area around Skrydstrup for the rest of her life. From an archaeological standpoint, this one-time and one-way movement of an elite female during the possible “age of marriageability” might suggest that she migrated with the aim of establishing an alliance between chiefdoms. Consequently, this detailed multidisciplinary investigation provides a novel tool to reconstruct high resolution chronology of individual mobility with the perspective of studying complex patterns of social and economic interaction in prehistory.

    ...

    Because the sample for aDNA extraction was very small and thus yielded a very low DNA concentration, the library consequently required an excessive number of PCR-cycles to become sequencable. This resulted in two observations when the amplified and purified library was profiled on an Agilent Bioanalyzer 2100: 1) A very high concentration of adapter dimer, making it inefficient to sequence with Next Generation Sequencing technology and 2) PCR products in the negative extraction control with similar length distribution and concentration such as in the DNA library from the hair sample. For these reasons, we decided not to perform further aDNA analyses.

    ...

    Although the acidic environment within the oak-coffin, in which the Skrydstrup Woman was burried, unfortunately prevented the preservation of human aDNA, our incremental δ13C and δ15N isotope hair analyses reveal a terrestrial diet with some indications of seasonal variation and the microscopy analyses showed that she had fairly coarse hair.

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    New African aDNA pushes back first AMH to beyond 260.000 ya, to beyond A00 perry and onset of the African middle stone age.

    http://biorxiv.org/content/early/2017/06/05/145409

    To examine the region's human prehistory prior to the arrival of migrants from East and West Africa or Eurasia in the last 1,700 years, we generated and analyzed genome sequence data from seven ancient individuals from KwaZulu-Natal, South Africa. Three Stone Age hunter-gatherers date to ~2,000 years ago, and we show that they were related to current-day southern San groups such as the Karretjie People. Four Iron Age farmers (300-500 years old) have genetic signatures similar to present day Bantu-speakers. The genome sequence (13x coverage) of a juvenile boy from Ballito Bay, who lived ~2,000 years ago, demonstrates that southern African Stone Age hunter-gatherers were not impacted by recent admixture; however, we estimate that all modern-day Khoekhoe and San groups have been influenced by 9-22% genetic admixture from East African/Eurasian pastoralist groups arriving >1,000 years ago, including the Ju|'hoansi San, previously thought to have very low levels of admixture. Using traditional and new approaches, we estimate the population divergence time between the Ballito Bay boy and other groups to beyond 260,000 years ago. These estimates dramatically increases the deepest divergence amongst modern humans, coincide with the onset of the Middle Stone Age in sub-Saharan Africa, and coincide with anatomical developments of archaic humans into modern humans as represented in the local fossil record.

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  19. #1490
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    Quote Originally Posted by epoch View Post
    New African aDNA pushes back first AMH to beyond 260.000 ya, to beyond A00 perry and onset of the African middle stone age.

    http://biorxiv.org/content/early/2017/06/05/145409
    very well, afterall africa is the cradle of humanity;things are slowly going in the right direction ,i hope this is only the beginning and papers about overlooked countries will be published soon (i pray the couple of days of the mycenean paper won't become two month)

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