Table 1.

Results of functional genomic analysis of major up-regulated gene expression sets in POA (Figure 2B)

GO Term	GO Description	SD	LD7	LD21	LD56
GO:0004887	Thyroid hormone receptor activity	p<0.001
GO:0003707	Steroid hormone receptor activity	p<0.005
GO:0003708	Retinoic acid receptor activity	p<0.05
GO:0005977	Glycogen metabolic process	p<0.05
GO:0042826	Histone deacetylase binding		p<0.05
GO:0016527	Brain-specific angiogenesis inhibitor activity		p<0.05
GO:0017053	Transcriptional repressor complex			p<0.05
GO:0004966	Galanin receptor activity				p<0.01
GO:0004945	Angiotensin type II receptor activity				p<0.05
GO:0008233	Peptidase activity				p<0.05

Gene ontology was used to determine significant functional categories that were associated with higher levels of gene expression across the photoinduced changes in the POA of SD, LD7, LD21 and LD56 starlings. Only significant values are shown (p<0.05) for candidate terms, see Additional file 5: Table S5 for full list.