DNA Segment Triangulation
By Kitty Cooper
Blogger
blog. kittycooper. com
ISOGG wiki entry for Triangulation
Triangulation
- When three people all match each other at the same autosomal DNA location we call it Triangulation.
- From ISOGG: "If you have at least three people with a common ancestor matching on the same segment then you can infer that the segment came from that ancestor. "
- Inversely, if three people all match each other on the same segment then you can infer they have a common ancestor.
Blaine Bettinger's new DNA relatedness chart, from his site http://www.thegeneticgenealogist.com/
George
Anna
Anton
Anna
Henry
(me)
KRISTINE v my cousins
Kristine compared to Mike and John on chromosome 11
John
versus
Mike
Chr 11
Kristine compared to John, George and Henry
John versus 2nd cousins
George (PG) and Henry
Chr 14
(George)
Kristine compared to Mike and Katy
Mike
versus
Katy
Chr 16
Gunnar versus my Dad
Gunnar versus my Dad
Gunnar versus my brother
Top matches Dad has in common with Gunnar
Gunnar versus Kitty, no match on 2, match on 20
Dad's Matrix Matches
How to get a Chromosome Browser Results (CBR) file
DMT output as a CSV
Automated Triangulation Tool at GEDmatch.com
GEDmatch triangulation sorted by chromosome location
Gedmatch Triangulation for Dad sorted by Match Name
Cousin Katy
Gedmatch Triangulation for Dad cut and pasted to a spreadsheet then sorted by chromosome and start
Blog.KittyCooper.com