Demetrios
Regular Member
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- Location
- Ἀθῆναι
- Ethnic group
- Ἕλλην
- Y-DNA haplogroup
- I2a-Y18331 > A2512*
I saw the quote and the actual Table S5, and probably a lot of that frequency has to do with CEU (western Europe) "if medieval", rather than actual Slavic populations which you mentioned in your prior comment. It doesn't specify. But if you go at Table S5 you see that CEU (western Europe) shows the highest frequency between the aforementioned populations, namely at 28.1%. Also, the paper seems to suggest that some of that could also be due to ancient migrations on the island, such as Mycenaean and Dorian Greeks. For example, "These results might reflect past settlements to Crete from Europe. Indeed, Crete was invaded from the North by the Myceneans and the Dorians in prehistoric or early historic times. These were Greek tribes which, together with the Minoans and other prehistoric inhabitants of the island, shaped the genetic structure of the Cretan population.".''In Table S5, we list the source populations that provided the strongest evidence of admixture (exponential amplitude and decay more than four standard errors higher than zero). A series of populations from western (CEU), northern (CEU, Estonian), and Eastern (Ukrainian, Russian) Europe produce admixture estimates of approximately 17%–28% dating to the medieval period.''
https://onlinelibrary.wiley.com/doi/full/10.1111/ahg.12328
No one knows for sure if that clade is Slavic but if it is not, then the fact that it is in Ashkanazi Jews is probably a coincidence. Sorry I don't believe in mass conversion hypothesis of old Greeks into Judaism that Anthrogenica members are promoting.
I am not going to expand on a possible mass Greco-Roman conversion to Judaism. But aside of that, the aforementioned haplogroup accounts for very little of the Ashkenazim Jewish paternal haplogroups. As aforementioned, I Y-DNA in general with all its subclades accounts for 4% of their lines. Who knows, maybe I-Y18331 accounts for only 0.50% (if not less) for all we know. Therefore even if you negate the possibility of a mass Greco-Roman conversion you still cannot exclude the assimilation of such small numbers. Other than that, Ashkenazim Jews are autosomally a Mediterranean population, so most of them obviously came from the South.