Originally Posted by
Leopoldo Leone
The ones on Anthrogenica says the exact opposite, and indeed some of them have been credited in the paper as the ones that have come up with the idea to check whether the AJ communities in Germany and France appear closer to the Erfurt-ME than Erfurt-EU.
What I have noticed is that usually the ones with more Russian-like admixture are those with a higher Lebanese-like admixture, which suggests heavily that it is to an extent an artefact unless only those individuals with less southern European-like admixture mixed with north east Europeans.
Admixture results depend heavily on the source pops selected, and the paper does mention that and presents a range of plausible models, all involving a south east EU source (Italian or Greek, and "Italian" ranging from south to north), a north east EU source and a Levantine source, as we already knew; the conclusions in my view start to be disputable when the authors read too literally into the models heavily suggesting that the ancestors of the ashkenazi Jews originated in south Italy and, having their cake and eating it too, suggesting that there is also considerable middle eastern admixture in Italy (especially in the south) which hides some of the admixture in ashkenazi Jews.