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The Mouse Genome Informatics (MGI) Phenotype ontology1 2 contains data about mouse genotype - phenotype associations primarily obtained by curators from the literature.
Phenotypic terms are related by a directed acyclic graph, the Mammalian Phenotype Ontology3 .


The human ontology contains 5,781 phenotypes, 5,377 genes, and 96,704 associations.

The mouse ontology contains 5,798 phenotypes, 5,536 genes, and 98,514 associations.


All data for this ontology was downloaded on April 22, 2009.


Ref Notes
1 Blake, J.A., et al. The Mouse Genome Database genotypes::phenotypes, Nucleic Acids Res. 2009 Jan; 37(Database issue):D712-9.
2 Bult, C.J., et al. The Mouse Genome Database (MGD): mouse biology and model systems, Nucleic Acids Res. 2008 Jan; 36(Database issue):D724-8.
3 Smith, C.L., Goldsmith, C.A., Eppig, J.T. The Mammalian Phenotype Ontology as a tool for annotating, analyzing and comparing phenotypic information, Genome Biol. 2005; 6(1):R7.
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