If you have found a problem with our Y-DNA Haplotree, please use our contact form to submit a request to customer service. Include in your message the details of the problem and the FamilyTreeDNA kit number(s) that contain SNP testing to support the problem.

We cannot fully investigate any issues with SNP placement without compelling evidence from kits (preferably three or more) tested in our labs. Acceptable testing includes National Geographic’s Genographic Project Geno 2.0 test results as well as FamilyTreeDNA SNP testing.