If no genes are listed here, it may be because the affected region is very large.
The JBrowse insert above may show an error for the same reason,
and other FlyBase tools such as
CytoSearch may also fail for large regions.
You can
contact FlyBase for more help.
In these cases, there will be no "Export to Hitlist" button to the left.
Duplication chromosome also covers small regions at the ends of the X chromosome, 1A-1B and 20F.
All limits from polytene analysis (FBrf0056565)