. Population substructure of E1b1b1c carriers suggested Ashkenazi Jewish ancestry, prompting a replication phase in individuals of both European and Ashkenazi Jewish ancestry
(booksc.org)https://booksc.org/book/12810510/448466Also this : Genotypes in stage II confirmed the scarcity of E1b1b1c
in subjects of European ancestry (1–2%) and revealed a
higher frequency in the two Ashkenazi Jewish studies
(13–14%), in line with previous reports (Hammer et al.
2009) indicating similar Y chromosome haplogroup frequencies in men of Ashkenazi Jewish descent living in the
US and those from Jewish communities in the Middle East.
and this
In a similar manner,
haplogroup R1b1a2 was seen in 50–59% of the subjects in
different European American studies but only 10–11% in
the two Ashkenazi Jewish studies.
