DNA chromosome browser

Visualize shared genetic segments across chromosomes 1 through 22 and the X chromosome to perform segment triangulation and crossover mapping. Open this screen when you want to analyze DNA match segment data imported from supported exports.

What you see

The upper section contains the reference kit selection control and the view selector tabs for Clusters and Chromosome Browser. The canvas displays shared segments painted across chromosome ideograms. The lower panel shows detail fields for a selected segment, including parental side options, label and color controls, and ancestor linking.

Common tasks

View segment details

1. Click a painted segment on the canvas.

The lower panel displays the match name, centimorgans, position range, and editing fields for the selected segment.

Assign parental side to a segment

1. Click a segment on the canvas to open its details in the lower panel.
2. Select Maternal, Paternal, or Unplaced under Side.
3. Select Save segment.

Link an ancestor to a segment

1. Click a segment on the canvas.
2. Select Link ancestor.
3. Choose an individual from the picker.
4. Select Save segment.

Good to know

• AncestryDNA does not provide segment data, so you must import an FTDNA or GEDmatch export to use this screen.