DNAChron's YTree for R1a-Y2619 Ashkenazi Levites

DNAChron's SNP-Based Tree for R1a-Y2619 Ashkenazi Levites (as of June 19, 2026)

Below is DNAChron's YTree for R1a-Y2619 (and its immediate upstream branch R1a-CTS6) as of June 19, 2026. DNAChron, a Chinese company, has posted a global Y-chromosome phylogenetic tree based on global public samples, ancient samples, and private sequencing data. DNAChron's YTree for R1a-CTS6 is comprised almost entirely of scientific samples, largely from the 2017 Behar paper. DNAChron's YTree uses SNP names other than those used by FTDNA and YFull to identify many of the branch-defining SNPs.

DNAChron's Annotated ISOGG Tree for R1a-Y2619 Ashkenazi Levites (as of June 19, 2026)

Below is DNAChron's annotated version of ISOGG's YTree for R1a-Y2619 (and its immediate upstream branch R1a-CTS6) as of June 19, 2026; the long sequences in the dark blue boxes are the designations given by ISOGG to various branches, and the letters and numbers in the light blue boxes are the SNPs used by DNAChron to identify those branches. 

As noted above: (1) DNAChron's YTree for R1a-CTS6 is comprised almost entirely of scientific samples, largely from the 2017 Behar paper; and (2) DNAChron's YTree uses SNP names other than those used by FTDNA and YFull to identify many of the branch-defining SNPs.