Dear Lists Many thanks to the YFull team for their wonderful interpretation service. Some kits have not had processing finalised as yet, but the YFull Experimental Tree suggests it might be timely for me to post an update for the I1-L803 sector. Thus far, nine of our 15 Big Y testers are members of the I1-Z60 project at YFull. Herewith a link to a chart showing the new branches downstream of I1-L803 as determined by the YFull Team: https://app.box.com/s/w9qhdt8b1hxaas37cqwp I have added some notes to the chart to show most distant ancestor timeframe and geographical locations, but will mention an important point here as well: Family Tree DNA did not report any of our 15 Big Y testers as being derived for the novel variant 14888161. However, when the YFull Team analysed the BAMs they identified four L803 men with reads at this position. YFull named the new SNP Y3239. The read details at 14888161 are as follows: Kit 181118 / YF01508: 3 reads = 3T: C>T Kit 150485 / YF01541: 3 reads = 3T: C>T Kit 136903 / YF01597: 2 reads = 2T: C>T Kit 84205 / YF01603: 1 read = 1T: C>T As can be seen on the chart, and despite the scant number of reads, Y3239 (14888161) appears to be an important gateway SNP to further branches downstream. Unfortunately, with the ‘no reads’ at this position, we cannot determine if Hamilton 8048 / YF01507, Scruggs 16435 / YF01547, and Frame 110238 / YF01617 are L803* or Y3239* (another Hamilton C kit is waiting for a BAM). Has anyone else faced this situation? If so, would FTDNA likely be open to rechecking these kits at 14888161? I don’t have any idea of the the Lab process so this may not be feasible, but I sure would like something definite rather than being left with this ambiguity. There are other L803 members in the Project who did not test Big Y that might also benefit if they could test Y3239 (14888161) – however, what would be my chances of requesting FTDNA to add this SNP to their catalogue when it didn’t even get reported for some of these L803s as a Big Y novel variant? I am a bit bewildered by this situation. The other branch below L803 is L802 – both of these SNPs discovered in Kit 64529’s WTY. Now with Big Y we have another branch parallel to L802 (Y3239) that seems to be taking in many of the L803 families. The maximum GD between any L803 men is 18 at 111 markers – one L802+ and the other Y3239+. I highlighted them with red arrows on the chart. Interestingly, there is only GD 3 between the other L802 and the family of a Y3238 man – also shown with red arrows. Huge variation. Once again, my sincere appreciation to the YFull Team. Kind regards Julie Frame Falk