Figure 4

Use of the CMO, MMO, XCO, VT, and RS ontologies to annotate RGD QTLs. The RS Ontology (A) and the CMO, MMO, XCO, and VT Ontologies (B) are used at the Rat Genome Database to standardize the presentation of the rat strains crossed, the specific measurement that was made, the method that was used to make that measurement, the conditions under which the measurement was made, and the specific trait that was measured, respectively. Annotations are assigned an evidence code of “IED” or “inferred from experimental data” to indicate the type of evidence (i.e., experimental) which supports the use of these terms.