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Thread: Mesolithic Iberians Related to Northern Europeans, Not Modern Iberians

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    Mesolithic Iberians Related to Northern Europeans, Not Modern Iberians

    Mesolithic Iberians (La Braña-Arintero) not ancestors of modern ones
    From the press release:

    A team of scientists, led by researcher Carles Lalueza-Fox from CSIC (Spanish National Research Council), has recovered - for the first time in history - part of the genome of two individuals living in the Mesolithic Period, 7000 years ago. Remains have been found at La Braña-Arintero site, located at Valdelugueros (León), Spain. The study results, published in the Current Biology magazine, indicate that current Iberian populations don't come from these groups genetically.

    This appears quite consistent with my model of mostly recent origins of European populations from a West Asian womb of nations. I can't wait to get my hands on this new data.

    From the paper:

    In the genomic analysis, it is interesting to see that the La Braña individuals do not cluster with modern populations from Southern Europe, including those from the Iberian Peninsula. The first PC separates a north-south distribution, whereas the second follows a general east-west pattern in modern Europeans. The position of La Braña individuals in the 1000 Genomes Project data and the 1KGPomnichip PCAs suggests that the uniform Mesolithic substrate could be related to modern Northern European populations but may represent a gene pool that is no longer present in contemporary Southern European populations. In the latter PCA, where the origin of each Iberian sample is known, it is possible to see that the Mesolithic specimens are not related to modern Basques, contrary to what has been previously suggested in some recent studies [39].

    The global PCA of the two individuals shows a clear shift relative to extant Europeans.

    So while they are more related to Northern than to Southern Europeans, they are well outside the range of modern European variation. Indeed, there is a strong hint of "Asian-shift" to these individuals. This is completely consistent with the pattern in modern West Eurasian populations. As I noted:

    With respect to the Asian- and African- shift of West Eurasian populations, I note that northern Europeans (and Basques) are less African-shifted than southern Europeans, and, at the same time they are more Asian-shifted: the 16 least Asian-shifted populations have a coastline in the Mediterranean (excluding the Portuguese), while the 16 least African-shifted populations do not (excluding the French).

    It now appears clear that the Mesolithic substratum in Europe was:

    Well outside the modern range, contributing a little to extant populations
    Its contribution in northern populations was higher than in southern ones
    It may be responsible for the pattern of Asian-shift observed for non-Mediterranean European populations

    There is a remarkable genetic uniformity in Europe during the Mesolithic period.

    If I'm reading this correctly, it suggests that the vast majority of mesolithic europeans throughout the continent were like modern day northern europeans.
    Paternal Haplogroup: R1b1b2a1a1*
    Maternal Haplogroup: U5a1a1
    Ancestry Painting: Europe 100%
    Global Similarity: Northern Europeans

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    It is quiet interresting as it is another proof that the Southern-European population is strongly changed in the last kys. The Gunachos, the autochton inhabitants of the Tenerife island (Canari Islands) were tall, blond, blue-eyed people in the sub-tropical area. Probably they were Cromagnid, Dalo-Faelid. Unfortunately the Spanish conquerors killed them mostly and the rest migrated to the New World and/or mixed with the Spanish. The Asian connection of the Cromagnid types is obiviously as the most archaic Cromagnid ones have some similar feature like as the Mongolids, hence it is absolutely hard to decide among the North-Eastern Europeans who are Mongolid influenced and how are extreme archaic one from a strongly isolated population.

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