AutoKinship automatically predicts family trees based on the amount of DNA your DNA matches share with you and each other. Note that AutoKinship does not require
any known genealogical trees from your DNA matches. Instead, AutoKinship looks at the predicted relationships between your DNA matches, and calculates many different paths you could all be related to each other. The trees from our analysis are ranked and represent the most likely trees out of all the possibilities we calculated.
The AutoKinship tool is available for 23andme profiles as well as a standalone tool. Using the standalone tool, users can fill in shared match information from DNA testing companies that provide
the shared cM information between shared matches. Currently, only MyHeritage, 23andme and GEDmatch provide this information.
AutoCluster first organizes your DNA matches into shared match clusters that likely represent branches of your family. Everyone in a cluster will likely be on the same ancestral line, although the MRCA between any of the matches and between you and any match may vary. The generational level of the clusters may vary as well. One may be your paternal grandmother’s branch, another may be your paternal grandfather’s father’s branch. Next, AutoKinship reconstructs and compares many different trees. AutoKinship works for persons with an unknown parentage to their birth families (for instance adoptees or donor conceived persons).
The probabilities used by this AutoKinship analysis are based on simulated data for MyHeritage matches and are kindly provided by Brit Nicholson
(methodology described here
). Based on the shared cM data between shared matches, we create different trees based on the putative relationships. We then use the probabilities to test every scenario which are then ranked.
Reconstructed AutoKinship trees
Reconstructed AutoKinship trees are sorted based on their combined probabilities. Next, we compare these trees based on the lowest ranking (lowest probability). The combined odds ratio reflects this comparison. In addition, the ratio as compared to the next AutoKinship tree is provided, allowing you to compare trees with each other.