Figure 2

Database integration of the Vertebrate Trait Ontology. The Animal QTLdb, RGD, and MPD all annotate QTL with VT terms, facilitating cross-species comparisons. Although the legacy trait and subtrait information are still displayed at the top of the RGD QTL report pages, annotations for VT, CMO, MMO, and XCO are shown in the “Experimental Data Annotations” section of the page, giving users a clear, concise, and standardized list of the trait assessed, the measurement used to assess that trait, the method by which the measurement was made, and the conditions under which the experimental data were obtained.