To join this project you need to have: 1. Y-DNA test results from FamilyTreeDNA. 2. Test positive (or be an account manager for your male relative who tested positive) for I-M253-Z63, Z58, Z59, Z60, or Z73. In your request to join, please state your starting tested subgroup (like Z58 or Z63). If you are not sure, then list what branch of I-M253 you think you are based on family members of Autosomal DNA testing predictions (23andMe, FTDNA ...). If you tested positive for Z59>Z138 or Z59>Z140 or L1302, you should instead go to those FTDNA group projects where you will find much more results like yours. The project uses a combination of STR haplotypes and SNPs to group results. Kits that have provided the Admins with Limited or Advanced Access will be sorted into subgroups. These subgroup names may include recommendations for additional testing. When writing to Admins or Co-Admins for assistance, please include the kit number and the name on your account. Thank you and welcome to our group project.