A novel tissue-specific meta-analysis approach for gene expression predictions, initiated with a mammalian gene expression testis database

Table 5 Results for expression status of genes at developmental stages in mouse testis from different databases.

Databases¹	Postnatal period	Specific postnatal Stage (0-6 day/TS27)
MGEx-Tdb	21016²	21195
Bgee	15899	15501
MGI (GXD)	5954³	NA
MRG	~8500	~8500
4DXpress	ND	ND

Notes:
See additional file 9 for detailed methods;
NA: Not Applicable, i.e., no query feature available for early post-natal stages of development; ND: No Data in postnatal development stage [available till TS 26 only]; TS: Theiler stage (A term used to denote the stage of development of a mouse; Theiler, 1989); Bgee: a dataB ase for G ene E xpression E volution; MGI (GXD): M ouse G enome I nformatics (G ene Ex pression D atabase); MRG: M ammalian R eproductive G enetics; 4DXpress: EXpress ion database in 4D (four dimensions).
¹The references and URLs are listed in the additional file 4.
²MGEx-Tdb results correspond to genes transcribed/dormant on specific days between day 0-20 and many genes cancel due to contradictory results. However, one can obtain better results for specific stage using this database, as indicated in the third column.
³The results include some repeats.

ISSN: 1471-2164