Рассылка от 2 мая 2010
A New G SNP Category Thanks to the General Fund. Due to testing funded by the project's General Fund, we are pleased to announce the first new G SNP category since last fall. It was reported recently that Mr. Rangaswamy's sample was chosen as one of those for testing of the undefined L140 SNP. A number of persons within the P303+ group had tested positive for L140. Mr. Rangaswamy was of special interest because he has the largest genetic distance to other fellow members of the P303+ group. We were estimating that his shared ancestor with other P303 persons lived about 3,000 yrs. ago.
This week he became the first P303+, L140- person in our database. While we only have one other marker sample similar to his in the database -- also from India -- his marker value combinations seem common among G persons in southern India based on information from research studies and could be found among a million persons.
These findings require revision of the G tree as follows:
G2a3b = L141+
G2a3b1 = P303+ or S135+
G2a3b1a = L140+ [new]
G2a3b1a1 = U1+
G2a3b1a1a = U13+ or L13+ or S131+ or L78+
G2a3b1a2= L43+ or S147+
G2a3b1a2a= L42+ or S146+
G2a3b1a3 = L139+
So we will have to begin referring to the large number of P303+ persons in Europe more precisely now as L140+ persons. Many times, a decision would be required from the Intl. Soc. of Genetic Genealogy on how a new SNP would be classified. But there is only one possible way the tree can be altered. Consequently most of the G Project pages, Wikipedia, etc. have now been revised to show the changed terminology related to this SNP.
New G1 SNPs now available for testing. Last year in Mr. Epner's Walk through the Y (WTY) sample, three new SNPs were identified: L201, L202, L203. Because he is the only G1 person (actually G1a) who participated in WTY, we only know that these SNPs were missing from the G2 persons. It is completely a blank slate as to how much coverage within G1 these new SNPs may have. These tests just became available to the public this week. As a first step in evaluating these, Mr. Kabaker who matches Mr. Epner 65 of 67 marker values has placed an order for these. Thanks to Paul Epner is assistance in communicating with his near matches on this. While anyone in the G* or G1 or G1a groups is welcome to test for these now, results of the Kabaker sample will not be known until late May at the earliest. Until then there is always the possibility that these SNPs are found only in Mr. Epner's family. New SNPs can be found on the Family Tree DNA results page. On clicks on Order Tests, and scrolls down to find Advanced Orders. Then one clicks on the SNP box and scrolls down again.
G persons head Middle Eastern Project. We may be late in noticing about the Lebanon-Syria-Palestine-Jordan project, but project members Kandell and Nasr now are listed as heading this project. Congratulations, and we look forward to an improved number of G samples from that region with their leadership.
Status of the G1 Kazakh group determined. Thanks to General Fund funding we are able to report that the significant group of G1 persons in Kazakhstan who have distinctive marker value similarities are now confirmed as G1a persons.
Submitting Family Tree samples to Genebase. We reported earlier that there seems a problem in how Genebase converts the values of some markers when the data are submitted. We had been relying on the differences found in submitting several samples in order to tell persons what to change when submitting Genecase samples to Y-Search. The owner of a new sample on the project pages, Mr. Adayilmaz, pointed out a web page which had located instead multiple persons tested for the same markers at both Genebase and Family Tree. Such persons must be quite rare. But the data from these samples suggests there are more markers that require conversion than thought. The list of items needing conversion are found at
http://www.irishtype3dna.org/ConvertMarkers.php So Genebase, it seems, is making multiple errors in converting Family Tree samples submitted to its database.
Test for G2a3a Persons. It was noticed that the L90 SNP is onow n the list of G SNPs available for testing. L90 has never been added to the draft G haplotree maintained by Family Tree DNA's SNP lab. L90 was originally identified at Ethnoancestry in a G2a3a1 (L14+) person. This SNP remains an unknown. It may extend beyond L14 or constitute a subgroup of L14 persons. We need persons within G2a3a to test for this, especially those have had testing for L14.
Problems in Family Tree's SNP list. Going back six months there have been problems in the SNP listings for G persons. Apparently due to diversion of resources to other projects at the lab nothing was done on this or anything involving SNPs for months. We received word today from a staff member that he would meet with the scientific people this week about the specific G problems we have identified. So perhaps something to report on this next newsletter.
Re-evaluating G ClustersThis a report on the current project to establish better categorizations among our enormous DYS388=13 G2a3b1a (L140+) group.
Those men who fail to have anyone related to them in about 2000 yrs or more are being extracted and placed into a new DYS388=13 category titled the Non-Clustering DYS388=13 Group. A strong majority of DYS388=13 men do connect with men having shared ancestors more recent in time. The men in the Non-Clustering category come from lines that were far less successful in producing descendants than the main group. Even if more recent relatives show up for them, they are very unlikely to tie in to the main group. Some of the existing "clusters" are being abolished as a result of this first step in reorganization.
Last week, in discussing the lack of relatedness of many L42+ persons (now G2a3b1a2a), several persons were identified as not being Swiss. The surnames were misleading, and this was not the case. Sorry for the error.
Recent General DNA and Archeological NewsThe most recent population genetics studies summarized at Dienekes blog:
http://dienekes.blogspot.com/include these items [with posted comments]:
(1) A new study on Y-chromosome variation in northwestern China
OTHER NEWS
(1) New information on Tell Zeidan, a proto-urban community in Syria dating from between 6000 and 4000 B.C. with pictures
http://news.discovery.com/archaeology/dawn-of-urban-life-uncovered-in-syria.html (2) A report on a preserved (due to chronic waterlogging) Roman fort and contents in Carlisle, north England
http://www.cumberlandnews.co.uk/news/carlisle-dig-s-roman-finds-of-international-importance-report-1.702782?referrerPath=news Recent Changes within the Haplo G Project The project welcomed the following men with these surnames and ancestral countries since the last newsletter (listed with their likeliest G category):
Al Shareif-Qurashi, Saudi Arabia -- G2a3a
Abduljabar-Rajpoot, Pakistan -- Unclassifiable
Mohamed -- G2a* Third Miscellaneous Subgroup
Hasan-Jalalian, Iran (Armenian) -- Unclassifiable
Rodriguez-Gamez, Mexico -- G2a3b1a1a
Adayilmaz, Turkey -- G2a4 (a Genebase customer in Y-Search)
A, United Arab Emirates -- G2a3a
Adolph, Germany -- G2a3b1a (DYS388=13) Cluster 1F
Factoids for NewcomersMutation rates for the various markers at Family Tree DNA are available.
http://freepages.genealogy.rootsweb.ancestry.com/~geneticgenealogy/MR.htm The ones with the lowest mutation rates are markers with more significance in categorizing persons.
These rates were calculated among R1b haplogroup persons. Markers with higher values tend to mutate more. Because of this, it is theorized that G persons have mutations rates a little slower in the first 37 markers and higher rates in the last 30 markers than shown.
The General FundDonations of $5 or more to the general fund providing money for help in testing key samples are most welcome and can be handled in the following manner:
The donor links to
http://www.familytreedna.com/group-general-fund-contribution.aspx There are instructions there for making the contribution by choosing the G Haplogroup Fund. Choose G, and a list of G items will appear. Then choose Haplogroup_G which is at the very top of the list.
Ray Banks