Jewish group of branches: I1


The Jewish branches can be grouped according to their Y-DNA characteristics. These characteristics are often related to a period between 10000ybp-4000ybp. Some branches had a founding father effect in that period outside the Middle East which gives information on the location of their ancestor at the time of the founding father. For other branches it is more likely that the ancestors were in the Middle East, where, in most cases, no founding father effect took place and population growth was continuous. An overview of the Jewish groups of branches is present.


The I1-Z140 is a group that appeared in Europe when the pastoralists that went to Europe near 5000 ybp. No branch is known in the period 14000-5000ybp. It is very likely that the ancestor changed to the jewish religion in one of the Ashkenazi countries in Europe. It is extremely unlikely that the ancestor lived outside Europe when the ancestor became Jewish.

Since I1 is strongly present in North-Western Europe, it is clear that becoming Jewish without a Jewish father is highly exceptional in North-Western Europe.

Branches in this group

Branch # Y-DNA SNP# of
CE of ancestor
CE range
GroupAS M G K I R Y J B C
AB-086I1-Z140-Y126634758-15331100-1825 I1A

table caption

List of SNPs in yfull tree:Home - A0-T - A1 - A1b - BT - CT - CF - F - GHIJK - HIJK - IJK - IJ - I - I1