Ygorcs
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Reading papers and seeing models of DNA ancestry that some people have made in blogs and stuff, I have noticed this clear trend of steeply decreasing ancestry in most North European populations where CWC once existed compared to the ~75% Yamnaya-like that the CWC had. The highest scores often found are ~50%. I have just tried modeling the ancestry of modern Germans, CWC Germans and MN French just to see if the results of the tests are plausible. The Yamnaya_Samara ancestry appear at ~73% for CWC Germans, 0% for MN French - and ~52% for modern Germans. The EEF (using a German_MN sample) ancestry increased from ~27% to ~48%. What would've caused that big decrease in steppe ancestry? Just the Central European BB influx and eventual preponderance? Or what else? I mean, if the Central European Rhine-ish BB were ~50% EEF and ~50% Yamnaya-like, they would have had to have virtually wiped out the entire CWC population of Germany for that nearly 50% Steppe + 50% EEF result to happen. I think that's most unlikely. Even a very dramatic genetic replacement like 70% BB would still leave the population with ~57-58% of Yamnaya-like ancestry. Is it possible that later Celts, more admixed with other EEF-enriched peoples nearer to Southern Europe, brought some of that ancestry back to the north, or something like that?