Constructing a fish metabolic network model

Table 2 Comparisons between fish and human orthologs

Species	Extra duplicated genes (%)	Extra duplicated metabolic genes (%)
Zebrafish	15.4	0.6
Medaka	8.9	1.5
Takifugu	12.2	3.8
Tetraodon	14.4	5.8
Stickleback	11.9	4.5

An extra round of genome duplication produced more genes in fish than human. The number of total human orthologs found in a fish species is typically around 12,000, as analyzed from Ensembl data.

ISSN: 1474-760X