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Actual and Predicted SNP-Based Clusters for R1a1a Ashkenazi Levites

The following table identifies the R1a1a Ashkenazi Levites who have tested to at least 37 markers as of August 6, 2017, followed by their haplogroup as identified by FTDNA, their Big Y status, their cluster (Y2630, FGC18222, or Y2619*), and their subcluster. 

For men who have had their cluster or subcluster identified through full or a la carte Y-DNA testing (through FTDNA's Big Y test or a la carte Y-DNA SNP testing, Full Genomes Corp.'s Y-DNA testing, or YSEQ's a la carte SNP testing), the clusters and subclusters are identified with no notation.

To the extent possible, the two tables below (the first is sorted by kit number, and the second is sorted by cluster) identify predicted clusters and subclusters designated by the notation "[P]") for men who have not done such testing.  Those predictions are based on patterns of STR marker values.  Because one of the key predictive STR marker is located on markers 68 through 111 while the second key predictive STR marker is located on markers 38 through 67, it is sometimes difficult to predict clusters -- and typically difficult to predict subclusters -- for men who have tested to only 37 markers.

Table Organized by Kit Number



Table Organized by Cluster



Click here for star trees for all R1a1a Ashkenazi Levites who have tested to 111 markers, 67 markers, or 37 markers.


Predictions as to clusters and subclusters for men who have not done full Y-DNA testing are based largely upon a comparison of their pattern of STR marker values to those of men who have done such testing.  To make it easier to identify the pattern of STR marker values that may be characteristic of particular clusters or subclusters, this website posts the key STR marker values for R1a1a Ashkenazi Levites who have done full Y-DNA testing, sorted into subclusters

Two markers -- DYS537 and DYS650 -- have the most predictive value for clustering R1a1a Ashkenazi Levites as Y2630+, FGC18222+, and Y2619*.  As a general matter, men who have DYS537=12 and DYS650=20 are likely to be Y2630+, men who have DYS537=11 and DYS650<20 are likely to be FGC18222+, and men who have DYS537=12 and DYS650<20 are likely to be Y2619*. (Because of back mutations and independent mutations, however, there are a significant number of men who do not fit this rule).  

Without full Y-DNA testing, it is often difficult to identify subclusters for men who are Y2630+.  There are a few exceptions to this rule; the marker value DYS495=16 is characteristic of the YP268+ subcluster of Y2630, and the marker value DYS48=24 is characteristic of the YP1387+ subcluster of Y2630.