Figure A1.

Neighbor-joining tree of group 5 with the SAg 51B, the B isogene family, and SAgs 51G, 51I, 51C, and 51A. The known genes for P. primaurelia (156S, 168G, and 156G) are spiked into the alignment to identify the orthologs in P. primaurelia strain AZ9-3. Identified proteins that correspond to known SAgs in P. tetraurelia are indicated (51B isogene family, 51A, and 51G). P. primaurelia is colored in yellow, P. biaurelia in pink; P. tetraurelia in blue, P. sexaurelia in red, and P. caudatum in black.