Salmo salar and Esox lucius full-length cDNA sequences reveal changes in evolutionary pressures on a post-tetraploidization genome

Table 2 Proportions of genes in GO categories

Categories	ID	High fold-changes		Low fold-changes
localization (transport, cell motion)	GO:0051179	11	16.4%	10	16.4%
nucleic acid metabolism	GO:0006139	10	14.9%	3	4.9%
protein metabolism	GO:0019538	6	9.0%	6	9.8%
other metabolic process	Multiple IDs	8	11.9%	16	26.2%
development	GO:0032502	6	9.0%	5	8.2%
translation	GO:0006142	6	9.0%	4	6.6%
transcription	GO:0006350	5	7.5%	3	4.9%
apoptosis	GO:0006915	3	4.5%	5	8.2%
response to stimulus	GO:0050896	4	6.0%	2	3.3%
cell proliferation	GO:0008283	3	4.5%	2	3.3%
cell cycle	GO:0007049	3	4.5%	2	3.3%
signal transduction	GO:0007165	2	3.0%	3	4.9%
Total		67	100%	61	100%

Gene Ontology terms are given for gene trios in which there is a high fold-change in ω between paralogs (asymmetrically evolving duplicates) or a low fold-change in ω (symmetrically evolving duplicates). The proportions of genes contained within Gene Ontology categories are compared between the two groups. Nucleic acid metabolism (GO:0006139) is more highly represented in asymmetrically evolving gene duplicates.

ISSN: 1471-2164