G2a3b1a3a

News for G2a3b1a3a persons

This G2a3b1a3a subgroup under most circumstances is too small to have separate news events, and some reliance must be placed on the overall DYS568=9 subgroup of which you are a branch.

There is considerable good news for the DYS568=9 subgroup. For about 5 years we have been calling it the DYS568=9 subgroup.  DYS568 is found in upgrades to 67 markers or by ordering just DYS568.  All attempts to find a more reliable SNP mutation (instead of DYS568) to define our subgroup have failed over the past five years.  But we have now found a man in our group in the 1000 Genomes Project, and he has several dozen SNPs never previously identified.  We have been able to get two of these made into individual tests. There is enough preliminary evidence to confirm that these SNPs are valid and found in DYS568=9 men.  We suspect that Z724 will be an overall SNP that contains within it the DYS568=9 group and some other miscellaneous smaller groups.  A haplogroup G man from Beijing China tested positive for Z724 and this gives a hint that Z724 has the widest coverage.  Then under Z724 is Z1903 which may be equivalent to DYS568=9, but we are still trying to determine its boundaries.  We may need more of you to test for these two SNPs to define their boundaries.

It is necessary to backtrack just a bit.  In my own sample, the lab by chance noticed a SNP mutation they have labeled L640.  Testing done in recent months established that this is confined to a small number of British Isles ancestry DYS568=9 men.  Amazingly the man in the 1000 Genomes Project from Utah also has this mutation.  So he is somewhat of a cousin to me.   But the testing for Z1903 shows that Z1903 includes not only our British L640 group but also DSY568=9 men outside it.  

And all those other SNPs found in the Utah man in the 1000 Genomes Project likely contain among them some that define the branching within DYS568=9.  We eventually may learn from this exactly when the Jewish and other defined subgroups branched off providing thereby critical information on the migrations of our ancestors.

I reported to you early last year that two DYS568=9 men were found in North Ossetia, in the central part of the Caucasus Mountains. These were the first DYS568=9 men identified outside Europe.  There have since been no other such men identified though we have received additional G samples from the Caucasus region.  In late January 2012 there was a study from the Caucasus that for the first time included values for the YCA marker.  This is rather critical for us because we almost all have 20, 21 for this, and that is atypicalwhen compared to other men within the G2a3b1a (L140) group.  This study I mentioned only involved the Tats of the n.e. Caucasus (a region the Russians call Dagestan)   There was one 20, 21 G man listed, but I determined on the basis of the other marker values that he is unlikely to be DYS568=9.  Hopefully more studies will list results for YCA.

Now that the DYS568=9 subgroup has been discussed, you may have spotted that I mentioned that I am part of the L640 subgroup of DYS568=9, and that applies to you also.  This is not a revelation to most of you because you participated in the testing for L640.  And we are in great shape to make use of those SNPs in the man in the 1000 Genomes project because these are SNPs very specific to us. I am temporarily calling our subgroup the DYS533=8 subgroup because that was the earlier designation.  It will be called the L640 subgroup just as soon as I determine how Z724 and Z1903 fit into our pedigree. 

This is probably the most complex description here that I have written for any of the G subgroups.  So perhaps this tentative new diagram will help:
G2a3b1a3  [probably Z724+ men]
     G2a3b1a3a [probably Z1903+ men & includes all? DYS568=9 men]
           G2a3b1a3a1 L40+ men -- us

I have listed two categories of L640 men such as yourself:
(1) Confirmed L640 men
(2) Predicted L40 men.

There is no further testing presently available for us.   While I think that the Rushtons are included within the L640 subgroup, it would be helpful to have one of them test for L40 ($29).  

I am not sure whether Mr. Lord is new to our subgroup this year or not.  If so, welcome to you!

As mentioned in the general news section, if you are willing to better define your grouping, I will be glad to give individual recommendations and help. 
rayhbanks@cox.net.
Comments