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Thread: Haplogroup H subclade H3:a genetic link between old mediterranean populations

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    Haplogroup H subclade H3:a genetic link between old mediterranean populations

    Haplogroup H subclade H3 :

    a genetic link between old mediterranean populations in Iberia and Italy

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    ''Compared to H1, subhaplogroup H3 represents a much smaller fraction of H (...).
    However, its highest frequencies are found among the Basques of Spain (13.9%), in Galicia (8.3%), and, again, in Sardinia (8.5%)—in other words, in the same areas where H1 is also most frequent.''

    '' The frequency decline of both H1 and H3 from their peaks centered in southwestern Europe is not completely uniform, but a few intermediate local peaks are also observed. Both Austria and Estonia harbor peaks for haplogroup H1 (14.4% and 16.7%, respectively), whereas
    a local maximum of H3 is observed in Hungary (6.2%). Some intermediate peaks are indeed expected, as a result of random genetic drift. However, in some instances, these could also indicate a more direct genetic link of the populations living in these areas with those of southwestern Europe than with their current surrounding neighbors.''

    Am J Hum Genet. November 2004; 75(5): 910–918.

    ------------------------------------

    ''sub-Hg H3 was found to be more frequent (P < .05) in the Western (11.7%) than in the Eastern European Hg H pool (4.1%) and is virtually absent in Anatolia and the Near East
    (fig. 2B), resembling in its phylogeography the spread of Y-chromosomal Hg R1b associated 49a,f TaqI haplotype 15 (Semino et al. 1996; Cinnioglu et al. 2004). The high frequency of
    mtDNA Hg H3—in combination with Y chromosomal Ht 15—extends to the Iberian Peninsula, where H3 constitutes about 17% of Hg H and is the highest detected so far
    (Pereira et al. 2004; Quintans et al. 2004). ''



    ''The coalescence ages of H2a1 and H3 fall to the period of postglacial recolonization in Europe (table 1), suggested first for mtDNA Hg V (Torroni et al. 1998, 2001a). We also
    note that mtDNA bearing "St. Luke motif," 16235–16293 (Vernesi et al. 2001), belong to sub-Hg H2 (fig. 2A), being particularly frequent in Germany and Scotland (Helgason et al.
    2001; Pfeiffer et al. 2001). ''

    Mol Biol Evol. 2004 Nov;21(11):2012-21. Epub 2004 Jul 14.

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    Re: Haplogroup H subclade H3:a genetic link between old mediterranean populations

    I also noticed an interesting coincidence envolving the presence
    of similar surnames in Iberia peninsula and Italy, for example, the
    surname Severino, from Napoli, is also found in Spain and Portugal.


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    `` For example, branch H3 (found on the link above) is where my dad's great-grandmother, Marianna Severino, belongs.

    Just by knowing that my maternal great-grandmother’s line is from Haplogroup H3 , I already can learn much of the history of my distant grandmother. Her line originated during the Paleolithic, and arrived in Europe long ago, from her homelands in the Near East or Caucasus. Haplogroup H3 emerged in Europe in the area of the Iberian peninsula during the last Ice Age. H3 descendants prospered and spread all over Europe and the Middle East, becoming the most numerous of all European mtDNA haplogroups. ``

    http://www.calabriadna.com/What_DNA_tells.html

    note: mtDNA comes from mother and surnames in Europe are received from father...
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    Re: Haplogroup H subclade H3:a genetic link between old mediterranean populations

    It is interesting to see how the expansion of H3 is probably related to that of R1b, probably both being related to the Megalithic expansion.



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    Daglaf
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    Re: Haplogroup H subclade H3:a genetic link between old mediterranean populations

    Maybe I'm missing something. I've thought R1b (Europe M343) links to R (Europe M173) then to P (Central Asia M45) and finally to K(Middle East M9). While H (Middle East M52) links directly to K. The only palo native European markers are R, R1b, and R1a.

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    Re: Haplogroup H subclade H3:a genetic link between old mediterranean populations

    It's about the mtDNA H haplogroup, not about the Y-Chromosome H haplogroup.

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    Re: Haplogroup H subclade H3:a genetic link between old mediterranean populations

    MBE Advance Access published online on November 10, 2006
    Molecular Biology and Evolution, doi:10.1093/molbev/msl173


    © The Author 2006. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org
    Accepted November 3, 2006



    Origin and Expansion of Haplogroup H, the Dominant Human Mitochondrial DNA Lineage in West Eurasia: the Near Eastern and Caucasian Perspective


    U. Roostalu 1, I. Kutuev 2, E.-L. Loogväli 3 *, E. Metspalu 3, K. Tambets 3, M. Reidla 3, E.K. Khusnutdinova 4, E. Usanga 5, T. Kivisild 3, and R. Villems 3
    1 Department of Evolutionary Biology, Institute of Molecular and Cell Biology, University of Tartu and Estonian Biocentre, Tartu, Estonia; Present address: Institute for Toxicology and Genetics, Research Centre Karlsruhe, Germany
    2 Department of Evolutionary Biology, Institute of Molecular and Cell Biology, University of Tartu and Estonian Biocentre, Tartu, Estonia; Institute of Biochemistry and Genetics, Ufa Research Center, Russian Academy of Sciences, Ufa., Russia
    3 Department of Evolutionary Biology, Institute of Molecular and Cell Biology, University of Tartu and Estonian Biocentre, Tartu, Estonia
    4 Institute of Biochemistry and Genetics, Ufa Research Center, Russian Academy of Sciences, Ufa., Russia
    5 Department of Hematology, University of Calabar, Calabar, Nigeria




    Abstract


    More than a third of the European pool of human mitochondrial DNA (mtDNA) is fragmented into a number of subclades of haplogroup (hg) H, the most frequent hg throughout western Eurasia. While there has been considerable recent progress in studying mitochondrial genome variation in Europe at the complete sequence resolution, little data of comparable resolution is so far available for regions like the Caucasus and the Near and Middle East - areas where most of European genetic lineages, including hg H, have likely emerged. This gap in our knowledge causes a serious hindrance for progress in understanding the demographic pre-history of Europe and western Eurasia in general. Here we describe the phylogeography of hg H in the populations of the Near East and the Caucasus. We have analyzed 545 samples of hg H at high resolution, including 15 novel complete mtDNA sequences. As in Europe, most of the present-day Near Eastern - Caucasus area variants of hg H started to expand after the Last Glacial Maximum (LGM) and presumably before the Holocene. Yet importantly, several hg H sub-clades in Near East and Southern Caucasus region coalesce to the pre-LGM period. Furthermore, irrespective of their common origin, significant differences between the distribution of hg H sub-hgs in Europe and in the Near East and South Caucasus imply limited post-LGM maternal gene flow between these regions. In a contrast, the North Caucasus mitochondrial gene pool has received an influx of hg H variants, arriving from the Pontocaspian/East European area.

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