Browser overview. Shown from top to bottom are the browser's viewing window editor, strain selection panel, and data tracks for subspecific origin and haplotype similarity. The user selects a subset of genomes, which are highlighted and then displayed as tracks on one of several groups. Some data sets, such as the haplotype coloring, show only data for the selected classical laboratory strains. The user can drag tracks within a group to reorder the display of samples. This reordering is reflected in all grouped tracks. Users can navigate the genome by manually entering positions or use the navigation buttons to zoom in and out and pan side to side across the genome. Data tracks can also be collapsed and expanded using the +/- button above each track. In the subspecific origin group the colored tracks indicate the subspecies origin of each strain. Throughout, blue indicates Mus musculus domesticus, red indicates M. m. musculus, and green indicates M. m. castaneus. Shared colors in the haplotype tracks indicate a common haplotype.