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Thread: "Y haplo J illuminates the processes of Phoenician and Greek colonizations"

  1. #1
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    "Y haplo J illuminates the processes of Phoenician and Greek colonizations"

    "A finely resolved phylogeny of Y chromosome Hg J illuminates the processes of Phoenician and Greek colonizations in the Mediterranean"

    LINK: https://www.nature.com/articles/s41598-018-25912-9

    Abstract

    In order to improve the phylogeography of the male-specific genetic traces of Greek and Phoenician colonizations on the Northern coasts of the Mediterranean, we performed a geographically structured sampling of seven subclades of haplogroup J in Turkey, Greece and Italy. We resequenced 4.4 Mb of Y-chromosome in 58 subjects, obtaining 1079 high quality variants. We did not find a preferential coalescence of Turkish samples to ancestral nodes, contradicting the simplistic idea of a dispersal and radiation of Hg J as a whole from the Middle East. Upon calibration with an ancient Hg J chromosome, we confirmed that signs of Holocenic Hg J radiations are subtle and date mainly to the Bronze Age. We pinpointed seven variants which could potentially unveil star clusters of sequences, indicative of local expansions. By directly genotyping these variants in Hg J carriers and complementing with published resequenced chromosomes (893 subjects), we provide strong temporal and distributional evidence for markers of the Greek settlement of Magna Graecia (J2a-L397) and Phoenician migrations (rs760148062). Our work generated a minimal but robust list of evolutionarily stable markers to elucidate the demographic dynamics and spatial domains of male-mediated movements across and around the Mediterranean, in the last 6,000 years.

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  3. #2
    Tl;dr Hg J in Europe and Anatolia is not from neolithic farmers it came from the south Caucasus with Indoeuropeans.

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    "With the caveat of a equalized sampling across clades, we simply observed a stasis in the 15-5 kya time window in the whole tree, followed by a sudden increase at 5 kya, in line with most European populations.

    Of the internal clades, only J1-M267 and J2b-M12 displayed the same growth phase at approximately 5 kya. In the context of the recent explosive increase in world population size "

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    J2b2-L283 is under M12....










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    Quote Originally Posted by bpr View Post
    "With the caveat of a equalized sampling across clades, we simply observed a stasis in the 15-5 kya time window in the whole tree, followed by a sudden increase at 5 kya, in line with most European populations.

    Of the internal clades, only J1-M267 and J2b-M12 displayed the same growth phase at approximately 5 kya. In the context of the recent explosive increase in world population size "
    Shouldn't J2a since its in Myceneans also show this explosion? How come only J2b?

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