Figure 1.

Screen shot of ArkMAP showing three gene maps uploaded from Ensembl. Map 1 (highlighted) of Cow chromosome 20 was retrieved from Ensembl release 63. Map 2 was retrieved by searching for human regions of conserved synteny to map 1. Map 3 was retrieved by fetching the more recent release version 70 for the region displayed in map 1. The upper configuration panel allows the selected map to be hidden or deleted, and the tabbed panels below allow rescaling, resizing, reorienting of the axis; changing the map title; choosing font types and sizes and selecting which markers to display. Colour key: purple: identity, sky-blue: synonymy, black: one-to-one orthology, vermilion: apparent one-to-one orthology, orange: one-to-many orthology, blue-green: many-to-many orthology, blue: possible orthology, yellow: paralogy. ▲ forward transcribed gene; ▽reverse transcribed gene.