Extended Data Fig. 7. Orthologue retention rates after 2RCY.
Retention is computed for each P. marinus chromosomal segment derived from a single CLG as the fraction of orthologues maintained on the segment in a comparison with the total number of orthologues for the same CLG in Branchiostoma floridae. a, Distribution of retention rates plotted for all CLGs. b, Distribution of retention rates plotted for each CLG. These distributions are not distinctly bimodal, in contrast to the finding for 2RJV19. Lamprey is used because it more closely preserves ancestral cyclostome state, as proposed previously20.