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English: "East Europe II analysis" on autosomal makeup of East European populations in two donor groups by A Genetic atlas of human admixture history. The analysis was centered on Eastern Europe with the main admixture event being the Slavic expansion and hereof, on a consistent to all receipents indication of the Slavic expansion by analyzing only a single Slavic-speaking population (Polish) as either of the two donor populations of the recipient populations. The authors speculate the Polish ancestral component may correspond to the Slavic expansion. The second donor group of the recipient populations is random and not consistent at all. The analysis included also all European populations, other than Slavic-speaking, as donors. Non-European populations, that were excluded as donors were Oceanian, African, Southeast Asian, because no signs of their admixture was detected.
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information sources: A genetic atlas of human admixture history Companion website for "A genetic atlas of human admixture history", Hellenthal et al, Science (2014).

(14 February 2014). "A genetic atlas of human admixture history (supplementary data)". Science (New York, N.Y.) 343 (6172): pp. 76, 96 99, 103. DOI:10.1126/science.1243518. ISSN 0036-8075. ""S7.6 'East Europe' The difference between the 'East Europe I' and 'East Europe II' analyses is that the latter analysis included the Polish as a potential donor population. The Polish were included in this analysis to reflect a Slavic language speaking source group." "We speculate that the second event seen in our six Eastern Europe populations between northern European and southern European ancestral sources may correspond to the expansion of Slavic language speaking groups (commonly referred to as the Slavic expansion) across this region at a similar time, perhaps related to displacement caused by the Eurasian steppe invaders (38; 58). Under this scenario, the northerly source in the second event might represent DNA from Slavic-speaking migrants (sampled Slavic-speaking groups are excluded from being donors in the EastEurope I analysis). To test consistency with this, we repainted these populations adding the Polish as a single Slavic-speaking donor group (“East Europe II” analysis; see Note S7.6) and, in doing so, they largely replaced the original North European component (Figure S21), although we note that two nearby populations, Belarus and Lithuania, are equally often inferred as sources in our original analysis (Table S12). Outside these six populations, an admixture event at the same time (910CE, 95% CI:720-1140CE) is seen in the southerly neighboring Greeks, between sources represented by multiple neighboring Mediterranean peoples (63%) and the Polish (37%), suggesting a strong and early impact of the Slavic expansions in Greece, a subject of recent debate (37). These shared signals we find across East European groups could explain a recent observation of an excess of IBD sharing among similar groups, including Greece, that was dated to a wide range between 1,000 and 2,000 years ago (37).""
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29 gusht 2018 23:14Miniaturë për versionin duke filluar nga 29 gusht 2018 23:141.366 × 612 (56 KB)Bozdugan{{Information |description={{en|Left: "East Europe II analysis" on autosomal makeup of East European populations by the Genetic atlas of human admixture history. The analysis was centered on Eastern Europe with the main admixture event being the Slavic expansion and hereof, on an integral indication of the Slavic expansion by analyzing only a single Slavic-speaking population (Polish) as a donor population of the recipient populations. The authors speculate that this ancestral component may c...

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