Table 1:

Comparison of assembly metrics between the draft and the new golden mussel genome

	Draft genome (GCA_003130415.1)	Chromosome-level genome (GCA_944474755.1)
Total assembly length (Gb)	1.67	1.34
GC content (%)	33.6	33.8
Number of scaffolds	20,580	309
Scaffold N50 (Mb)	0.31	97.05
Scaffold L50	1,489	7
Number of contigs	61,175	1,838
Contig N50 (Mb)	0.03	1.50
Contig L50	16,521	277
QV	14.89	53.36
Completeness (%)	47.83	68.55 (primary assembly) 99.23 (primary + alternate haplotype*)
BUSCO (metazoa_odb10)	C: 66.8% [S: 65.0%, D: 1.8%], F: 19.3%, M: 13.9%, n = 954	C: 95.6% [S: 95.0%, D: 0.6%], F: 2.2%, M: 2.2%, n = 954

BUSCO statistics. C, complete; D, complete and duplicated; F, fragmented; M, missing; S, complete and single-copy. n = number of BUSCO genes from reference dataset.

^*Primary assembly: GCA_944474755.1; alternate haplotype: GCA_944589985.1.