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YCC phylogenetic tree version used by 23andMe?
Posted by: Gail Blancett (ID *****4929) Date: October 03, 2013 at 10:22:54
  of 4707

What version of the YCC phylogenetic tree is being used by 23andMe for their Y haplogroup predictions?

I had someone write to me who had recently received their results at 23andMe and their Y haplogroup prediction was R1b1b2.

They were trying to find someone in the Turner DNA Project at FTDNA who matched them and said there were none with that haplogroup (which their aren't).

When FTDNA changed over to the 2010 version of the YCC phylogenetic tree, all our R1b1b2 members were changed to R1b1a2 haplogroup.

SNP M-269 is the defining variant mutation at FTDNA for haplogroup R1b1a2. I checked the Haplogroupt Tree Mutation Mapper at 23and me and found that at 23andMe, M-269 is the defining variant mutation they use for defining R1b1b2.

It looks to me like 23andMe is using a pre-2010 YCC haplotree.

Can someone confirm this for me?


Gail R. Blancett, Administrator, Turner DNA Project

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