We have discovered a new branch called I-A16520, it is circled in red on the tree. The tree below is dated May 18, 2017.
I expect that a new Big Y will be completed very soon. We already know the man tested belongs I-A8462, and maybe he will belong to the I-A16520 branch. There are two other interesting Big Ys for I-L233 that were ordered recently.
Click here to see the February, 2017 tree for I-L233.