To use PhyloGeographer you will need to know the name of your Y-haplogroup and your subclade. Your subclade is the most specific branch of your haplogroup that your paternal lineage belongs to.
There are two ways to learn your Y-haplogroup.
- You have taken a Y-chromosome test.
- A family member that would have the same Y-chromosome as you has taken a Y-chromosome test.
FamilyTreeDNA and Full Genomes Corp (see coupon below) are two companies that offer Y-chromosome testing.
Your subclade may become more refined as time goes on and as you and your matches take more tests.