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Thread: Genetic Genealogy and Ancient DNA in the News

  1. #2591
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    https://www.tandfonline.com/doi/full...0.2019.1623912

    East Anglian Early Neolithic monument burial linked to contemporary Megaliths

    Christiana L. Scheib ORCID Icon, Ruoyun Hui, Eugenia D’Atanasio, Anthony Wilder Wohns, Sarah A. Inskip, Alice Rose, Craig Cessford ORCID Icon, Tamsin C. O’Connell, John E. Robb, Christopher Evans, Ricky Patten & Toomas Kivisild

    Received 27 Feb 2019, Accepted 20 May 2019, Accepted author version posted online: 11 Jun 2019

    https://doi.org/10.1080/03014460.2019.1623912

    Abstract

    In the fourth millennium BCE a cultural phenomenon of monumental burial structures spread along the Atlantic façade. Megalithic burials have been targeted for aDNA analyses, but a gap remains in East Anglia where Neolithic structures were generally earthen or timber. An early Neolithic (3762 – 3648 cal. BCE) burial monument at the site of Trumpington Meadows, Cambridgeshire, U.K. contained the partially articulated remains of at least three individuals. To determine whether this monument fits a pattern present in megalithic burials regarding sex bias, kinship, diet, and relationship to modern populations, teeth and ribs were analysed for DNA and carbon and nitrogen isotopic values respectively. Whole ancient genomes were sequenced from two individuals to a mean genomic coverage of 1.6 and 1.2X and genotypes imputed. Results show that they were brothers from a small population genetically and isotopically similar to previously published British Neolithic individuals, with a level of genome-wide homozygosity consistent with a small island population sourced from continental Europe, but bearing no signs of recent inbreeding. The first Neolithic whole genomes from a monumental burial in East Anglia confirm that this region was connected with the larger pattern of Neolithic megaliths in the British Isles and the Atlantic façade.

    The mitochondrial (K1a + 195) (Table S4) and Y chromosome (I2d-Y3709 or I2a2a) (Table S5) haplotypes were identical indicating both a maternal and paternal relationship.

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  3. #2592
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    More megalith DNA.

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  5. #2593
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    A Steppe in the Right Direction
    Lara Cassidy, June 2019
    https://www.nature.com/articles/s41559-019-0876-4

    A steppe in the right direction
    Lara M. Cassidy
    Nature Ecology & Evolution 3, 877–878 (2019) | Download Citation

    The authors of a new genomic study propose three distinct latitudinal clines of ancestry among modern Inner Eurasians, each built upon successive layers of admixture.

    Article | Published: 29 April 2019

    The genetic history of admixture across inner Eurasia
    Choongwon Jeong, Oleg Balanovsky, […]Johannes Krause
    Nature Ecology & Evolution 3, 966–976 (2019) | Download Citation

    Abstract

    The indigenous populations of inner Eurasia—a huge geographic region covering the central Eurasian steppe and the northern Eurasian taiga and tundra—harbour tremendous diversity in their genes, cultures and languages. In this study, we report novel genome-wide data for 763 individuals from Armenia, Georgia, Kazakhstan, Moldova, Mongolia, Russia, Tajikistan, Ukraine and Uzbekistan. We furthermore report additional damage-reduced genome-wide data of two previously published individuals from the Eneolithic Botai culture in Kazakhstan (~5,400 BP). We find that present-day inner Eurasian populations are structured into three distinct admixture clines stretching between various western and eastern Eurasian ancestries, mirroring geography. The Botai and more recent ancient genomes from Siberia show a decrease in contributions from so-called ‘ancient North Eurasian’ ancestry over time, which is detectable only in the northern-most ‘forest-tundra’ cline. The intermediate ‘steppe-forest’ cline descends from the Late Bronze Age steppe ancestries, while the ‘southern steppe’ cline further to the south shows a strong West/South Asian influence. Ancient genomes suggest a northward spread of the southern steppe cline in Central Asia during the first millennium BC. Finally, the genetic structure of Caucasus populations highlights a role of the Caucasus Mountains as a barrier to gene flow and suggests a post-Neolithic gene flow into North Caucasus populations from the steppe.

    https://www.nature.com/articles/s41559-019-0878-2
    Gerard Corcoran
    R1b-DF21-S5456-S6166, H1C1

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    Quote Originally Posted by Heber View Post
    A Steppe in the Right Direction
    Lara Cassidy, June 2019
    https://www.nature.com/articles/s41559-019-0876-4

    . . .
    Any way to get hold of that without paying for it?
     


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    Y-DNA: R1b-FGC36981 (L21> DF13> Z39589> CTS2501> Z43690> Y8426> BY160> FGC36974>FGC36982 >FGC36981)

    Additional Data:
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    rs4988235 AA (13910 TT)
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    Dad's mtDNA: K1a1

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    Quote Originally Posted by rms2 View Post
    Any way to get hold of that without paying for it?
    Here you go. I’m crap at computers so I only knew how to take screenshots.A7B56A4C-444F-4008-8597-0B45F57E5D5B.png

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