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Friday, January 4, 2013

Genographic Project yields informative new branches for J-M530

The new Genographic Project's Geno 2.0 test contains over 12,000 SNP's on the Y Chromosome.  A good level of participation from J-L24/L25 or M530 as L24 is referred in published papers, has resulted in new branches and twigs for this subclade of J2 which peaks in frequency in Eastern Iran (Yazd, 17%+ J-M530).  Below is a draft tree of J-L25 with the new SNP's and their theorized positions:

New SNP's that reveal new branching include F3133, F761, PF4888, PF5401, PF5366, PF5368, PF5456 along with a large number of SNP's which reinforce existing branches.  Of most interest are the newest branches near the top of L25-PF4888/PF5401 and F3133.  These 2 new branches seem to divide a large section of J-L24, L25 in half and the task in the coming months will be to test these new mutations on various other clusters of J-L24 (M530).

The Genographic project description for L25 with a map view origin in Western Turkey seems different from the research of Grugni 2012 which identified M530 as originating in Iran, peaking in frequency in eastern Iran (Yazd 17%+) and peaking variance in both the south and north of Iran.  Geno 2.0 reports J-L25 frequencies as follows:

Branch: L25 

Age: Bronze Age

Location of Origin: West Asia

With the trade of goods produced in the Bronze Age, members of this lineage moved first into the Mediterranean and then on to Europe, where it is present at low frequencies.
Today, this line is present most often in Tunisia (10 to 11 percent), Azerbaijan (9 percent), Macedonia (5 percent), and Malta (4 to 5 percent). It is about 4 percent of male lineages in Armenia, Kuwait, and Jordan. It is between 3 and 4 percent of the male population in Iran.
Note: This branch is not accompanied by a major movement on the map, and research on this branch is continuing.

Such a high number of new SNP's will assist in determining various migrations for this subclade of J2 which has such a strong connection to the Middle East.

1 comment:

Kamel said...

Thank you David
I checked your finding about YCAIIb values which are as follows
Group F3133: YCAIIb between 19 and 22
Group PF4888/PF5401: 23
and found that it is most probably reliable then I checked this finding with the J2-Middle East Project and found that Most of the cluster fall in this project ( fall under F3133, I have reworked the grouping and added "presumed F3133 or presumed PF4888/PF5401 to the group names
One more thing as per the variation of str markers for each group it seems that F3133 is older than PF488 and that F671 has a similar age as L192.2 group