Yes ive tested FGS at FTDNA, listed in the FGS U5 project and other U5 projects, ive also uploaded my data to genebank: GU815340, and Ian logan has several matches for my 16192C! sub-group:
Italy, Poland and Algeria;
http://www.ianlogan.co.uk/sequences_..._sequences.htm
I have you in U5b1b1 Group J in the project, a proposed new subclade defined by 2 extra coding region mutations, so you would want to focus on samples that share the 2 extra mutations. There is no news on this group since my Jan 26 email - a total of four members in the project, one from Sweden and 2 from the US with unknown country of origin. All of your 1 and 2 step matches at FTDNA are also in this group.
U5b1b1 is extremely diverse genetically which suggests that it lived in a population that expanded rapidly. It is also very geographically diverse with some branches found in Africa. The age estimate is consistent with the arrival of the Neolithic in Europe. But the identity of the people in whom U5b1b1 originated and the mechanism of the expansion is still a puzzle. I would guess that it expanded in a Neolithic community but I'm not certain. I'm interested in other people's opinion on this.
evon (09-24-2014)