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GermOnline, a cross-species knowledgebase on germ cell differentiation

Wiederkehr, C.; Basavaraj, R.; Sarrauste de Menthiere, C.; Hermida, L.; Koch, R.; Schlecht, U.; Amon, A.; Brachat, S.; Breitenbach, M.; Briza, P.; Caburet, S.; Cherry, M.; Davis, R.; Deutschbauer, A.; Dickinson, H.G.; Dumitrescu, T.; Fellous, M.; Goldman, A.; Grootegoed, J.A.; Hawley, R.; Ishii, R.; Jegou, B.; Kaufman, R.J.; Klein, F.; Lamb, N.; Maro, B.; Nasmyth, K.; Nicolas, A.; Orr-Weaver, T.; Philippsen, P.; Pineau, C.; Rabitsch, K.P.; Reinke, V.; Roest, H.; Saunders, W.; Schröder, M.; Schedl, T.; Siep, M.; Villeneuve, A.; Wolgemuth, D.J.; Yamamoto, M.; Zickler, D.; Esposito, R.E.; Primig, M.


C. Wiederkehr

R. Basavaraj

C. Sarrauste de Menthiere

L. Hermida

R. Koch

U. Schlecht

A. Amon

S. Brachat

M. Breitenbach

P. Briza

S. Caburet

M. Cherry

R. Davis

A. Deutschbauer

H.G. Dickinson

T. Dumitrescu

M. Fellous

A. Goldman

J.A. Grootegoed

R. Hawley

R. Ishii

B. Jegou

R.J. Kaufman

F. Klein

N. Lamb

B. Maro

K. Nasmyth

A. Nicolas

T. Orr-Weaver

P. Philippsen

C. Pineau

K.P. Rabitsch

V. Reinke

H. Roest

W. Saunders

T. Schedl

M. Siep

A. Villeneuve

D.J. Wolgemuth

M. Yamamoto

D. Zickler

R.E. Esposito

M. Primig


GermOnline provides information and microarray expression data for genes involved in mitosis and meiosis, gamete formation and germ line development across species. The database has been developed, and is being curated and updated, by life scientists in cooperation with bioinformaticists. Information is contributed through an online form using free text, images and the controlled vocabulary developed by the GeneOntology Consortium. Authors provide up to three references in support of their contribution. The database is governed by an international board of scientists to ensure a standardized data format and the highest quality of GermOnline's information content. Release 2.0 provides exclusive access to microarray expression data from Saccharomyces cerevisiae and Rattus norvegicus, as well as curated information on approximately 700 genes from various organisms. The locus report pages include links to external databases that contain relevant annotation, microarray expression and proteome data. Conversely, the Saccharomyces Genome Database (SGD), S.cerevisiae GeneDB and Swiss-Prot link to the budding yeast section of GermOnline from their respective locus pages. GermOnline, a fully operational prototype subject-oriented knowledgebase designed for community annotation and array data visualization, is accessible at The target audience includes researchers who work on mitotic cell division, meiosis, gametogenesis, germ line development, human reproductive health and comparative genomics.


Wiederkehr, C., Basavaraj, R., Sarrauste de Menthiere, C., Hermida, L., Koch, R., Schlecht, U., …Primig, M. (2004). GermOnline, a cross-species knowledgebase on germ cell differentiation. Nucleic Acids Research, 32(Database issue), D560-D567.

Journal Article Type Article
Publication Date 2004
Journal Nucleic Acids Research
Print ISSN 0305-1048
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 32
Issue Database issue
Pages D560-D567
Keywords Bioinformatics