The Geno 2.0 Dashboard and Y Haplogroup Percentages

[Stevo]

Awhile back I was nosing around my dad's Geno 2.0 results dashboard and noticed that it reports the percentage of Geno 2.0 participants who have tested positive for both his y-dna and mtDNA haplogroups.

He is R-CTS2501 (like me, of course), and that is reported as the y haplogroup of 0.4% of the Geno 2.0 participants.

My dad's mtDNA haplogroup is K1a1. That is reported as the mtDNA haplogroup of 0.2% of Geno 2.0 participants.

Up in the upper right hand part of the screen it says, "I am 1 of 678,632 participants."

If half of those 678,632 Geno 2.0 participants are male, then that means there should be about 1,357 CTS2501+ (R-CTS2501) results among them.

I would really like to encourage those folks to transfer their results over to FTDNA and to join the R L21 and Subclades Project and the R-DF41 and Subclades Project.

It is all too obvious that very few of them have done so.

[jbarry6899]

I agree about the potential value. but am a bit skeptical about the Geno 2.0 percentages. My terminal snp is R-Z49, and it supposedly is shared by 1.0% of Geno 2.0 male testers. That seems a very high percentage to me, and I am wondering if it actually is computed based on a higher level snp such as L2 or even U152. The migration maps are at that level.

Jim

[MMaddi]

I agree about the potential value. but am a bit skeptical about the Geno 2.0 percentages. My terminal snp is R-Z49, and it supposedly is shared by 1.0% of Geno 2.0 male testers. That seems a very high percentage to me, and I am wondering if it actually is computed based on a higher level snp such as L2 or even U152. The migration maps are at that level.

Jim

Yes, we have some indications from putting together the statistics from members of the R1b-U106 Project that Geno 2.0 is including some very small subclades in the percentages for the next downstream subclade. One example is R1b-Z330, which is tiny, with only one known person in the project for that subclade. Yet, that subclade is given the same percentage as the next downstream subclade, R1b-Z326, which is a sizable subclade.

[MMaddi]

Up in the upper right hand part of the screen it says, "I am 1 of 678,632 participants."

If half of those 678,632 Geno 2.0 participants are male, then that means there should be about 1,357 CTS2501+ (R-CTS2501) results among them.

The Genographic Project has added together their Geno 1.0 and Geno 2.0 results when they give the number of participants. The number of participants in Geno 1.0, which only tested 12 STRs and HVR1 region mtDNA, was 525,000.

That means that the number of Geno 2.0 participants is actually about 150,000. As you point, probably about half or maybe slightly more are male and have yDNA results. I think you'll have to reduce the number of testers in your subclade by about 3/4, so there may be 300-350 testers in your subclade.

Also, read the previous two posts. If your specific subclade is fairly small, Geno may have collapsed it into the nearest subclade of some size. If that's the case, that further reduces the number of testers in your subclade.

[Stevo]

Thanks. I was not aware of all that.

I suspected it was too good to be true.