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Thread: Genetic Genealogy and Ancient DNA in the News

  1. #861
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    New human remains have been found in Strashnaya Cave, Altai, Siberia and are currently analysed. Possibly a new Denisovan find.

    Fragments of an early human skull and rib were found in Pleistocene era layers in Strashnaya Cave, it was announced today by Professor Andrey Krivoshapkin, head of Archeology and Ethnography at Novosibirsk State University. These are expected to be 'no younger than 50,000 years' old, he said. Another find, dating to at least 35,000 years ago, was a tiny fragment of finger bone - a nail phalange.

    'We struck really lucky this year,' he said. 'During works at Pleistocene levels of Strashnaya Cave we found new anthropological material. In levels dating to 35,000 to 40,000 years ago, we found a fragment of a human nail phalanx.
    'Further down (in older layers) there was a fragment of a human skull and, even further, a fragment of a rib which we believe is human.' He stated: 'Both the skull and the rib should be no younger than 50,000 years old.'

    The academic said that 'in an ideal world we would like to have the nail phalange to belong to a modern man, carrying genes of both Neanderthal and Denisovan man, and the older find (the skull) belonging to Neanderthal Man, and the oldest fragment - the rib - to be from Denisovan man.' However, he cautioned: 'Right now, however these are just my fantasies. As we know, analysis results might turn out to be completely unexpected. But whatever the results, they will help us understand the interaction of modern humans, Neanderthals and Denisovans in the Altai territory.'

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  3. #862
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    Archeogenetics of Roopkund deads
    http://yim.indiabioscience.org/poster/67
    The high-altitude (5029 meters) Roopkund lake is situated in the Himalayan mountains within the Northern Indian state of Uttaranchal. Here, 70 years ago, several hundred human skeletons were found, in the lake itself and in its vicinity. This discovery was puzzling as the reasons for which so many people would have travelled and found their end there remained elusive. This is the first study to address the origin of these individuals through genetic and biological analysis of the skeletal remains. Using amelogenin marker; it was found that the majority of the individuals were males. In the same time, AMS dating of the bones revealed that the individuals had lived in the 8th century AD. To address the ancestry of this population, DNA was extracted from the bones of 80 individuals and the complete mitochondrial genome of each of them was sequenced; furthermore, for 25 of them, 200,000 autosomal markers were also genotyped. The comparative genetic analysis, which includes modern day data from both 700 individuals living in the vicinity of the Roopkund site and 22,000 individuals from across India, suggests that the 8th century Roopkund population comprised two groups of genetically distinct individuals. The majority showed genetic affinity with present day European and Middle Eastern populations, while the others displayed common haplogroups with the Austro-Asiatic population of the North Indian Himalayas. Finally, genetic continuity was observed in the area, with the present day inhabitants of the Indian Himalayas showing genetic closeness to the ancient Roopkund population. To conclude, this is the first ancient DNA study of a North Indian population; we find evidence of admixture between a putative Indo-Aryan migrating population and an older Austro-Asiatic population in India.
    Last edited by Coldmountains; 08-23-2015 at 11:10 AM.

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    From Ian Logan, an 'ancient' Chinese mtDNA sequence has appeared on GenBank. It belongs to the Haplogroup U5a2a. It accompanies the paper (unpublished so far):
    Ning,C., Gao,S. and Cui,Y. : Ancient Mitochondrial Genome Reveals Trace of Prehistoric Migration in the East Pamir by Pastoralists

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  7. #864
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    Quote Originally Posted by Bernard View Post
    From Ian Logan, an 'ancient' Chinese mtDNA sequence has appeared on GenBank. It belongs to the Haplogroup U5a2a. It accompanies the paper (unpublished so far):
    Ning,C., Gao,S. and Cui,Y. : Ancient Mitochondrial Genome Reveals Trace of Prehistoric Migration in the East Pamir by Pastoralists
    That U5a2a is probably of Steppe origin. Although North Asian hunter gatherers also had U5a2a before the Bronze age

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  9. #865
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    Quote Originally Posted by Krefter View Post
    That U5a2a is probably of Steppe origin. Although North Asian hunter gatherers also had U5a2a before the Bronze age
    Which North Asian hunter-gatherer groups had U5a2a among them?

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  11. #866
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    Quote Originally Posted by J Man View Post
    Which North Asian hunter-gatherer groups had U5a2a among them?
    "Barbara Steppe". Plenty of U5a and I think U5a2a was found there from before Afanaseivo. There's also an 8,000 year old U5a from Siberia, along with typical Eastern lineages.

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  13. #867
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    Quote Originally Posted by Krefter View Post
    "Barbara Steppe". Plenty of U5a and I think U5a2a was found there from before Afanaseivo. There's also an 8,000 year old U5a from Siberia, along with typical Eastern lineages.
    Ahhh you are talking about the Ust-Tartas and Kitoi results.

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    DNA project at the Celtic sanctuary of Ribemont sur Ancre, France: http://129.199.58.230/archeo_new/spip.php?article444

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    Iñigo Olalde et al., 2015, Molecular Biology and Evolution: A common genetic origin for early farmers from Mediterranean Cardial and Central European LBK cultures
    The spread of farming out of the Balkans and into the rest of Europe followed two
    distinct routes: an initial expansion represented by the Impressa and Cardial traditions
    which followed the Northern Mediterranean coastline; and another expansion
    represented by the LBK tradition, which followed the Danube River into Central
    Europe. While genomic data now exist from samples representing the second migration,
    such data have yet to be successfully generated from the initial Mediterranean
    migration. To address this, we generated the complete genome of a 7,400 year-old
    Cardial individual (CB13) from Cova Bonica in Vallirana (Barcelona), as well as partial
    nuclear data from five others excavated from different sites in Spain and Portugal.
    CB13 clusters with all previously sequenced early European farmers and modern-day
    Sardinians. Furthermore, our analyses suggest that both Cardial and LBK peoples
    derived from a common ancient population located in or around the Balkan Peninsula.
    The Iberian Cardial genome also carries a discernible hunter-gatherer genetic signature
    that likely was not acquired by admixture with local Iberian foragers. Our results
    indicate that retrieving ancient genomes from similarly warm Mediterranean
    environments such as the Near East is technically feasible.

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    Quote Originally Posted by Bernard View Post
    From the paper:
    Our analysis suggests that the geographic isolation of Sardinians and Basques partially
    preserved the originally widespread early Neolithic population component, more than
    any other populations in Europe. Considering that Basques speak a pre-Indo-European
    language, this finding also indicates that the expansion of Indo-European languages is
    unlikely to have taken place during the early Neolithic. This is in agreement with the
    recently characterized genetic influx from the steppes in the Late Neolithic/Chalcolithic,
    which has been associated to the spread of Indo-European languages into Western
    Europe (Allentoft et al. 2015; Haak et al. 2015).

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