News for G2a3b1a1a1d persons
I am sorry to have to indicate that there was little news to report for L13 persons over the last year. By exception, within the 1000 Genomes Project we found one man who is L13+ He is a Mexican from Los Angeles, but his ethnicity does has not much revelance. Within his sample I found dozens of previously unreported SNPs. It is very likely that some of these represent major branching within L13 persons. The lab was unwilling to provide tests for these because they were not found in multiple persons. We were able to get tests for a few SNPs which occur near to known existing SNPs for which tests are already available. They just re-label them with the new SNP info, and there is no expense to creating the new test. But no such lucky other SNP near a known SNP occured in our L13 man so we will be continuing to look for some way to get these identified new SNPs convereted into tests.
For substantial news, we have to turn to the mother group for U1 from which your L13 is a branch.
The main news this past year in the U1 subgroup (G2a3b1a1) involves studies make in the Caucausus Mountains where your subgroup is most frequently found. Regretfully the authors of these two studies did not do the specific SNP testing for U1. However, they did provide some additional samples with marker testing. And there are lots of them that have similar marker values to men we know are proven U1+. Looking at the samples from the Balanovsky study, the samples similar to known U1 persons dominate the sample selection. A total of 86% of Shapugs were found to be G persons, the highest percentage found in any distinct group anywhere in the world, and as mentioned, a high percentage of them seem to be your U1 cousins. The Circassians also are heavily U1 and represent about 30 to 40% of the total population. These samples are from the northwestern Caucasus area of s.w.Russia. Going eastward, only a small amount of U1 is found among the Ossetians who occupy the central Caucasus, but in the northeast among the varied groups there the Avars are noteworthy for again having a significant percentage of U1 in their G samples, but G is not a major item in the Avar population
For information about Circassians (Adyghe people) link to
The Shapsugs are considered a branch of the Adyghe people. Their info found at
The authors estimate that the Circassians and Shapsugs split from a common group about 1400 years ago.
The Avars are explained at
There were some probably U1 samples among a small number of samples from the s.w. Caucasus, but it is probably best to ignore them because of the number.
L13 seems nearly absent from the Caucasus area which we just described. There is suggestive evidence there are L13 samples to the south, and we will be very interested in determining whether your L13 group descends from the U1 persons in the Caucasus or whether you have closer U1 relatives to the south.
This year we added to the project a listing of the estimate L13 percentages among G persons throughout Europe
Those of you in the G2a3b1a1a1d sub-subgroup of L13 are somewhat fortunate in having marker values that confirm your inclusion in the group. And everyone listed in your subgroup has this marker value oddity at DYS534 which defines your subgroup
So there is nothing we can recommend at this time for any of you to better define your subgroup.  
However, there are two of you, Mr. Bellwood and Mr. Higdon, are only predicted to have this oddity based on the similarity of their markers to those of confirmed members.  So we would very much like to you tested for DYS534 which only costs $7.20 as an individual test.
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.