YFull

YFull is a commercial service that provides advanced analysis of Y-chromosome DNA (Y-DNA) and mitochondrial DNA (mtDNA) data for genealogical purposes. It is particularly known for its deep clade Y-DNA analysis, which allows users to determine their paternal lineage at a much finer resolution than is typically available from basic Y-DNA testing companies. YFull uses its own extensive haplogroup tree, which is continually updated based on new research and data from its user base.

Users upload their raw DNA data, typically obtained from companies like FamilyTreeDNA, AncestryDNA, or 23andMe, to YFull for analysis. The service then assigns users to specific Y-DNA haplogroups, which represent distinct branches of the Y-chromosome tree. This detailed haplogroup assignment can help individuals trace their paternal ancestry back thousands of years. In addition to haplogroup analysis, YFull also offers tools for comparing Y-DNA and mtDNA results with other users, facilitating the identification of genetic relatives and the construction of family trees. The service also provides detailed reports and interpretations of the results, making them accessible to genealogists. YFull is a valuable resource for those seeking to delve deeply into their ancient paternal and maternal ancestral lines.