In my previous Blog, I mentioned how Rick’s new BigY 700 test results created a sort of tipping point. His test in conjunction with the previous three BigY tests resulted in three changes in the Frazer YDNA Tree. One of those changes was the likely creation of a new James Line YDNA Haplogroup of R-Y151390. I say likely, because FTDNA’s manual review has not yet been completed.
However, when I look at the Frazer Block Tree today, I see that there is already another change from yesterday:
For some reason, FTDNA has split the old Frazer umbrella group of R-YP6489 into two. YP6489 is now the older group with a younger group of R-FT421618 under it. This is very unusual, because without an additional tester, there should be no way to know that FT421618 is younger than Y6489.
Some Speculation on R-FT421618
This is another mystery, as I don’t know how FTDNA could know that there were two groups unless someone else has tested. The only thing I can think of is that they may have access to other information such as the initial Frazier/Frasher BigY results that we have been waiting for. This test had quality issues and the results are now due around the end of February.
Let’s assume that FTDNA is looking at initial Frasher/Frazier results. Previous dating by the FTDNA YDNA administrator for our Frazer group had set YP6489 at around 1200 AD. The two Frazer Lines (Archibald and James) had to have started around 1720. This is about the date we are guessing Archibald and James were born, though we believe that Archibald was older. From looking at the two groups of Y6489 and FT421618, they both have three SNPs in each. That means that FT421618 could have formed about halfway between between Y6489 and the James Frazer and Archibald Frazer Haplogroups. 1200 to 1720 is 520 years. That means hat we should be able to date FT421618 at the halfway point between 1200 and 1720 or at 1460.
R-Y151390: The New James Frazer Line YDNA Haplogroup
This is what I set out to look at but got side-tracked. In my previous Blog, I was struggling to see how FTDNA had arrived at the conclusion that this would be the new Haplogroup for the James Frazer Line based on my inability to find test results for certain SNPs or Private Variants. I brought my questions to the FTDNA – BigY Facebook Group and got some great results. This was the bottom line answer after much discussion from David Vance who is very accomplished and respected in the field of YDNA:
ok so YFull thinks Paul is positive for Y151390; FTDNA thinks not. That’s something you’d probably have to delve into the BAM file to figure out, but the only difference would be that Y151390 might belong above as an equivalent in the R-YP6489 block rather than only above Rodney and Jonathan. Based on their negative results for the R-Y85652 block and equivalents, the basic branching structure either way is still as shown on the Block Tree.
Here is some more background. Here is Jonathan’s results show in the non-block tree diagram:
FT421618, which I discussed above, is in yellow because Jonathan was Presumed Positive for this SNP. That means that his test results were not as thorough as needed for Jonathan to be positive for this SNP. However, based on others being positive for this SNP, he had to be positive for it also. Although I can’t find Jonathan’s detailed test results for Y151390 (the new James Frazer Line Haplogroup), the green dot means that Jonathan tested positive for this SNP. FT421607 is much more confusing as the grey dot means Presumed Negative. If Jonathan is showing as having this SNP, why wouldn’t he be Presumed Positive for it? Furthermore Jonathan is showing Presumed Negative for Y85652, Y102972 and Y112046. I know that is not the case, as I have looked at his results for these three SNPs and he shows as Tested Negative. Here is Jonathan’s results for Y85652:
I had to shrink my screen to show all of Jonathan’s reads that show he tested negative for Y85652. If he had tested positive, there would be a letter T in the column under the tiny arrow above. That tells me that, despite what the grey dots say, that Jonathan tested negative for this SNP and the other two under Y85652. This negative testing by Jonathan and Rodney made it very clear that Paul and Rick were in Y85652 and that they were not.
Is Paul Presumed Negative for Y151390?
That appears to be the case, but I showed above that these dots are not always right:
Here Paul shows as Presumed Negative for Y151390 and FT421607. I looked up FTDNA’s definition of Presumed Negative:
Presumed Negative – You are presumed negative for the primary SNP or variant. A person is presumed negative for sibling branches of SNPs for which you have tested positive.
It seems like the definition could have been stated more clearly. David Vance wrote to me:
Another help at Facebook was that someone found Y151690 at YBrowse when I could not. I was doing the search wrong. Here it is:
This seemed like an older SNP based on the Y prefix and it is dated at 2018. The Y prefix on the SNP means YFull.
Summary and Conclusions
- By reaching out to the BigY community on Facebook, I was able to find more resources to answer my Frazer YDNA questions.
- At the very least, I am documenting the changes as they are happening with the Frazer YDNA tree
- I tried to explain how the James Frazer Line was formed. However, without seeing the testing data for some of the SNPs, it is difficult to accurately describe the process
- There was an unusual split in the umbrella Frazer Haplogroup of Y6489. This seems to be only explained by FTDNA using the partial results of the Frazier/Frasher results for which we are waiting.