View Full Version : Results from FTDNA

05-29-2018, 09:22 PM
I finally got the results from ftdna's Z-58 SNP test. I am I-S6270, and also tested positive for I-S6275. An older name for it is I1a2b3a2. As far as I can tell it is Anglo-Saxon (English), but I could be wrong. Does anyone have any information on I-S6270's point of origin?

05-29-2018, 11:25 PM
You can look at the YFull for I-S6270 here https://www.yfull.com/tree/I-S6270/ - this will give you an idea of some of the downstream SNPs so maybe worth checking out which downstream SNPs you tested negative for in the SNP pack to rule out some branches. S6275 shows up as phyloequivalent in the YFull tree - which means that everyone tested so far that is positive for one is positive for the other and no one has broken those two SNPs up yet. You can see from the flags on the YFull tree where testers list their most distant known ancestor. While this doesn't mean the origin of the SNP itself, you can sometimes infer from the clustering of the locations of testers.
Following the breadcrumbs at the top of the YFull tree, it looks like this falls under I-Z138. I'd recommend joining your FTDNA results to the I-Z138 project at FTDNA which you can find here https://www.familytreedna.com/my/group-join.aspx?group=I1-Z138Y-DNA and they also have a Facebook group here https://www.facebook.com/groups/Z138Project/

05-29-2018, 11:37 PM
I-S6270 is far older than the Anglo-Saxon people, especially with a formed date of 4,600 YBP and a TMRCA of 3,500 YBP.

Eupedia has the following info on Z138 (at least somewhat carries over to S6270):


Z138+ (aka Z139+) is a very disparate subclade. It is found at very low frequency throughout the Germanic world, with a peak in England and Wales (although it could just be because of oversampling in Britain). Besides Germanic countries, it has also been found in Ireland, Portugal, southern Italy, Hungary and Romania. Z138+ corresponds to AS2, AS10, AS1010.2, AS10910, AS1221, AS1414 and Esc-13 in FTDNA's STR-based nomenclature. Z138 is divided in four subclades: S2293 (the largest), S5619, PF1610, and PF2364.

Eupedia says the following about S6277, which is upstream of S6270:

S6277+ is found in Scandinavia, Britain, France, Germany, Austria and Italy (Torino, Matera, Reggio di Calabria).

05-30-2018, 12:48 AM
Thank you for the information. Unfortunately, I tested negative for anything downstream of S6270. I did come across a Swedish website that says I-S6270 is about 3700 years old and is linked to the Greathouse family in the United States. Hermann Groethausen emigrated to Pennsylvania from Bielefeld in northwestern Germany. He was related to the noble Grothusen family of Westphalia which was known as early as 1269. There is a Swedish branch of the family which spells the name Grothusen.