The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
any structural anomaly of a fetal liver derived enucleated erythrocyte, which matures in macrophage islands within the liver, enucleates, and then enters the bloodstream; these resemble adult erythrocytes in that they are small (3- to 6- times smaller than primitive erythrocytes) and produce adult hemoglobins