Re: Triangulated DNA matches and Pile-up Areas #dna


Phil Karlin
 

Given the length shorter than 7 cM, I agree it's probably not worth pursuing. I don't disagree with anything Adam or Ellen already wrote. 

That said, I don't think I've ever seen in my results a 5-way triangulation. If you drop #2 (orange) does the triangulation with the others lengthen? How about if you drop #4 (green) as well? 
I think a long shared segment in a pile-up region is still a long shared segment. It just may be from a common ancestor further back than the same size segment in a non-pile-up region, and so less predictive. 

Final thought: whether researching something is "a waste of time" depends on how much time you have and what else could you be spending it on. If the prize is big enough, the investment may be worth it, even if it's a long shot.

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Phil Karlin
Hartford, CT USA

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