Circular genome view
TL;DR: The circular genome view lays out an entire assembly as a ring and draws long-range structural variants as chords across the interior, one arc per event connecting its two breakpoints. An arc with its two ends in different chromosome segments is an inter-chromosomal event, which no single linear window can hold.
Opening a circular genome view
- Launch Circular view from the Add menu in the main menu bar
- Select an assembly in the import form and click Open. The ring appears with one segment per chromosome
- Add a variant track from the view's track selector; SV chords render automatically as a Chord variant display
The view reads standard VCF/VCF.gz variant tracks. Chords are drawn from
long-range records (SVTYPE=BND breakends and translocations). Single-locus
deletions and duplications load but don't produce an informative chord.
Interacting with chords
- Hover a chord to highlight it and see the variant it represents
- Click a chord to open that variant's feature details
- From the feature-detail panel's Breakends section, use Open in breakpoint split view to open a breakpoint split view centered on the event's two breakpoints
To triage many variants at once, use the SV inspector, which pairs this same circular overview with a filterable variant table and cross-filters the two together.