Help Blaine Bettinger with a DNA Study

Fellow genealogist and DNA expert Blaine Bettinger needs our help. Blaine is gathering data about the ranges of DNA shared by known relatives. While it is possible to predict approximately how much DNA you share with a close relative, the actual numbers vary greatly.

All Blaine needs is a known relationship (for example brother/sister; father/child; cousins) and two numbers from your DNA results.  Blaine explains where to find these numbers if you have a kit from FamilyTreeDNA at http://www.thegeneticgenealogist.com/2015/03/04/collecting-sharing-information-for-known-relationships/ 

The submission form is also found there. If you are using 23andMe, you will probably need
 this explanation on how to get those two numbers. See  http://blog.kittycooper.com/2015/03/lets-all-help-collect-dna-statistics/

Please note that using Kitty's method above you will still need the largest number in the list as that is your second number to submit. 

If you submit before April 1, 2015 you will be eligible for a draw to win a Family Finder DNA kit. 

Olive Tree Genealogy submitted 3 sets of relationships for Blaine's study and have a few more to do. Let's all help Blaine with this study! 

WikiTree Announces: Finding Relationships with DNA Matches

6 November 2014: Today WikiTree.com is announcing two important features for genealogists who have taken DNA tests. These features make WikiTree’s Relationship Finder a uniquely powerful tool for genealogists who have taken 23andMe, Ancestry DNA, and FTDNA Family Finder tests.

“One of the biggest challenges facing genetic genealogists,” according to Dr. Blaine Bettinger, author of the long-running blog The GeneticGenealogist, “is finding the elusive common ancestor. Finding genetic matches is easy, but finding the common ancestor from whom we inherited a segment DNA is very hard. WikiTree’s new Relationship Finder is a great tool for identifying the ancestors that two or more people share in common.”

All Common Ancestors

Genealogical relationship finders are generally designed to find the first common ancestor between two people. Genetic genealogists need to know about all the common ancestors they share with a match. Everyone’s family tree intertwines in multiple ways. The first shared ancestor may not be the reason for a shared segment of autosomal DNA.

WikiTree’s Relationship Finder now enables you to easily browse all your common ancestors.

Filtering for Multiple Matches

When a genealogist shares a segment of autosomal DNA with two or more other people who also match each other on that segment, it’s a big clue in discovering which ancestor it came from

WikiTree’s Relationship Finder now enables you to filter the common ancestors shared by two people to only display common ancestors who are also shared by a third, fourth, or fifth person.

The Universal Family Tree

These Relationship Finder features are possible because WikiTree members are collaborating on a single tree for the entire human family.

“The genetic genealogy community absolutely must have a universal family tree,” says leading genetic genealogist Dr. Tim Janzen. “With smaller unlinked trees it's frequently impossible to see all of the true genealogical connections with the people who share autosomal DNA with us. We are finally getting to the point where this vision is becoming a reality at WikiTree.”