Table 3. Expressional correlation among D. melanogaster ERG orthologs.

	CG1998 ERG25A	CG11162 ERG25B	LBR ERG24	CG17270 ERG28	CG8067 ERG6	CG2453 ERG6?
CG7724	0.22	0.40	0.18	0.14	0.32	0.27
CG1998		0.03	0.89	−0.08	0.01	0.14
CG11162			0.07	0.27	0.28	0.34
LBR				−0.06	−0.02	0.17
CG17270					0.31	0.41
CG8067						0.55

The analyses were performed using data downloaded from the Gene expression-Omnibus database (http://www.ncbi.nlm.nih.gov/entrez/query.fcgiCMDsearchDBgeo). We considered the datasets GDS192 (wing imaginal disc spatial gene expression), GDS653 (neurotransmitter-specific neuronal gene expression), GDS664 (splicing factor mutant at permissive and restrictive temperatures) and GDS667 (mRNA splicing factor knock-down) which contain 51 data points for 14 000 transcripts.