Coming Soon: Y-DNA Haplogroups for Family Finder

[jdbreazeale]

I found out that SNPs that were used for defining a specific haplogroup have been found to be recurrent in other subclades and are now used for FF Y-DNA haplogroups.

There is no database of all positions and which haplogroups they are used for in FF although there are ways to find out with a Google search which haplogroups they are used for.

So if you see a haplogroup from FF it could be because of an SNP that was used to for another haplogroup, and still is, so check the list of positive SNPs.

"I found out that SNPs that were used for defining a specific haplogroup have been found to be recurrent in other subclades and are now used for FF Y-DNA haplogroups."

Can you elaborate?  When I read this, being recurrent in others subclades could make them unreliable.  I must be misreading what you are saying.


"So if you see a haplogroup from FF it could be because of an SNP that was used to for another haplogroup, and still is, so check the list of positive SNPs."  

How do I check the list of positive SNPs for a FF match?

They aren't necessarily unreliable if enough upstream SNPs exist and the person isn't positive for SNPs that are tested by FF that exist in other branches. FTDNA must be taking that into account. I assume that they are also comparing those results with people that have had a Big Y to prove they are reliable. 

You can't check on a match. You have to manage the account, or ask the match to provide the list of SNPs or screenshots, or if you know of a project that they belong to go to the page of the project that has the SNP results. The last one only works if they have had an STR test but not Big Y, Deep Clade, SNP pack, or individual SNP testing. Normally if there are no negative results or very few then they likely got the results from FF.

Most haplogroups don't have recurrent SNPs but I don't know how to find out all that do since there is not an FTDNA database that is similar to ISOGG SNP list or Ybrowse where we could filter out SNPs that don't have duplicates and see which haplogroups that are in all at once. It has to be done one at a time in the Haplotree or a Google search of Discover.

Robin Spencer has a useful tool for this in the "Admin Utilities" under "Find All Replicate Mutations" on his website: http://scaledinnovation.com/gg/adminUtils.html