Saturday, September 14, 2013
I-L672 can be L160+, PF6947+ or can be I-L672*, with the * meaning no known additional derived SNPs beyond L672.
I-L160 is by far the biggest group, and it has at least 10 SNP defined branches of its own, see the separate L160 tree.
I-PF6947 is a small group known only from Ireland.
All of the I-L672* "France" and "DYS413=19,22" groups and most or all of the "generic" group are more recently related to I-PF6947, not I-L160. We know this from 111 marker results, they share some distinctive marker values, in particular DYS532=9.
Tuesday, July 30, 2013
Wednesday, July 17, 2013
M26+ L277+ L247+
M26+ (L672- and L277-)
What's new is that several L672+ men and one L247+ man have completed Geno 2.0 tests. We learned that the L247+ man is ancestral for 17 SNPs that previously were thought to be equivalent to M26. Now the M26+ L672- L277- man is doing the Geno 2.0 test, and I expect that he will be on his own branch that split off even earlier, and he will be ancestral for some of the 36 SNPs that currently give results equivalent to M26.
The Mexican-American M26+ L277+ L247+ also had two new SNP results at Geno 2.0: he is F1915+ and YSC0000078+. These occur somewhere in the area of L277 or L247.
Thursday, July 11, 2013
It's starting to look like the second scenario is closer to what happened. The I2a Project at Family Tree DNA (FTDNA) has around 8 I-M26 members who were born in Sardinia, or who have fathers or grandfathers born in Sardinia. From testing at FTDNA we know that they are all likely L160+, the I-L160 group is the most common group of I-M26 but there are several L160- branches known only from continental Europe and Britain and Ireland. The design of the new Genographic 2.0 test involved sequencing several men living in Sardinia, so it includes many new SNPs relevant to these men. So far, one Sardinian-American man and one Maltese ancestry man belong to the PF4190 branch of I-L160. I think probably many or most I-M26 men living in Sardinia will belong to this branch, but we will need more testing to be sure.
Sunday, April 28, 2013
Click on picture to enlarge. At this point we have 6 groups of L160+ (and the Z110+ group only known from 1000 Genomes Project sequences). I don't know if F1295+ and PF4088+ are the only basic branches of L160+ or if there will be more. Usually I can tell if someone belongs to Z118+ or Z106+ based on 67 marker results, but we don't have enough results to make predictions for the other groups. About 40% of L160+ belongs to Z106+, but I don't know how big the other groups will turn out to be.
F1295, PF4088 and CTS11338are available for order as individual SNPs at Family Tree DNA, but each costs $39. My recommendation is that L160+ people order the Genographic 2.0 test for $199, it will test all the SNPs on the tree above and many more (except for a few of the Z SNPs and L1299).
Thursday, January 17, 2013
Another Geno 2.0 result this week creates another level in the I-M26 tree, and now the L160 section is so large that it requires its own diagram, see above.
Someone with paternal ancestry from the Azores is the first person at Geno 2.0 to test L160+ and PF4088-. We have one English ancestry man and one Welsh ancestry man who have L160+ PF4088+ results from Geno 2.0.
The Azorean person is also F1295+ and PF6950+. He is the first person in I-P37.2 to be derived for those SNPs.