Table 1 Comparative Genome Assembly Metrics for D. delphis and T. truncatus

Genome assembly statistics

Contig total length

2,559.1 Mb

2,372.3 Mb

Number of contigs

266

1036

Number of scaffolds

187

362

Maximum contig length

137.3 Mb

58.3 Mb

Maximum scaffold length

183.5 Mb

183.74 Mb

N50 length (contigs)

63.9 Mb

9.7 Mb

N50 length (scaffolds)

108.9 Mb

108.4 Mb

Genome characteristics

Guanine-cytosine (GC) content

41.92%

41.44%

Predicted heterozygosity

0.33%

0.27%

Content of repeat sequences

41.78%

34.80%

Predicted protein-coding gene number

22,148

18,465

Average exons of predicted protein-coding genes

7.92

9.88

Predicted non-coding RNA gene number

44,085

12,372

Quantity of assembled scaffolds anchored on chromosomes

23

22

Length of scaffolds anchored on chromosomes

2,400.8 Mb

2408.3 Mb

Chromosome number

23

22

Total number of predicted genes

22,148

24,128