All R1b-S1194 and lower sub-clades (CTS4528, A8039)
  • 72 members

About us

This project is a special focus project for the SNPs .  If you are not positive for either one of these SNPs, you should  find an alternate project that does focus on your terminal SNP or allocated Haplogroup.

The goal of the project is to look deeper into the origins of DF100 and CTS4528. So, if you have either SNP please feel free to join.  It is also highly recommended that you join the HT35new project below as they have been doing excellent work in developing a phylogenetic tree for DF100/CTS4528


11 Jan 2015:

The project is making good progress on establishing the best tests to take in order to get a clearer picture of where in the growing DF100/CTS4528 tree we fit.  You are invited to join our facebook forum here:

https://www.facebook.com/groups/southbalticdna/   -  Title: South Baltic DNA - L11/P310/P311/L151

The FB group is for sharing information with other 'rare DNA' members and most of us are DF100/CTS4528. We have members who administer other projects and in particular a member who handles DF100/CTS4528 for both ISOGG and the ftDNA Ht35 project.

This month Jan, we have begun creating a list of tests DF100/CTS4528 people can take to help them find where they belong in our emerging tree. We are also working on a future project to correlate known old family names to areas of probability of origin in UK, Holland, Sth Baltic areas (Denmark, Sweden, Germany & Poland) plus Sth Italian Alps). 

You are also welcome to look at our repository of useful information here: 


17 Nov 2014: 

At this time it has become pretty well apparent that if a person is + for either one of DF100 or CTS4528 then both *can be assumed*.  If at a future time someone emerges who is negative for one but not the other then we may again request that both tests be taken but for now, doing both tests as add-ons becomes an unnecessary cost, however, if some wants to buy both they are welcome to do so.  In time it is assumed that newer testing chips will fix the discrepancy where only one or the other is tested (i.e. as is the case with the NatGeo Genome2 test which tests for CTS4528 but not for DF100).  Big-Y does test for both.

This diagram comes from the HT35new project and is reproduced in part here (Just the CTS4528 DF100 part) with their kind permission.


16 Dec 2014: 

This is a link to some very useful research done on DF100/CTS4528 plus R1b in general, by Michael Maglio (of Origin Hunters). The link covers some recent interesting research on R1b DNA back-flow to the Lebanon area that strongly indicates how L11 (P311) DNA was more likely taken to those areas within  the past 1,000 years and that R1b Crusaders were the ones taking it there. Michael argues the case quite well, that L11 (P311) DNA that shows up in Armenia/Anatolia/Lebanon needs careful checking so as not to make the mistake of assuming this DNA has been in these places longer than it really was which runs the very strong risk of confusing the origins and historical migration of R1b into Europe from these areas in the near East. Michael uses STR variance to position people within their haplogroup and tells a very convincing story of where he sees R1b (and particularly in his earlier work - our DF100-CTS4528), originated and spread from around the South Baltic to near east and not necessarily the other way round.



Project Administrator.