Extended Data Fig. 1: Comparison of current and previous assembly statistics.

a, BUSCO statistics of current and previous genome assemblies. b, Assembly statistics of the two new genomes along with their older versions for comparison, generated with the assembly-stats perl package. c, d, Snailplots of general metrics (scaffold total length, scaffold count, longest scaffold, N50 and N90 values, and base compositions) of the new assemblies of the bat sea star (GCA_015706575.1) (c, upper panel) and purple sea urchin (GCA_000002235.4) (d, upper panel) versus those of previous assemblies (lower panels). e, f, HiC genome-wide contact maps of the bat sea star (e) and purple sea urchin (f) assemblies.