Zoom out to view the whole genome, zoom in to a chromosome and continue zooming to base pair resolution. As you zoom in, the gene track shows gene names and sequence data. If the sequence data is unavailable, small blocks replace the bases. If you are using a genome stored on the IGV genome server, you must be connected to the internet to view the sequence data. (Note that the zoom slider, also sometimes called the "railroad track," does not appear when you are viewing the full genome; it reappears when you zoom in to the chromosome level.)
To zoom in and out on a chromosome:
To scroll the display:
* You cannot scroll horizontally when IGV is displaying the whole genome or a whole chromosome.
Use the search box to locate:
Note: When loading from a file with an index, search may not find all matches. This is because IGV does not keep the entire file contents in memory when an index is present.
If you have a feature track loaded (e.g., Gene track, BED, or GFF file), you can jump from one feature to the next.
You can also jump from one exon to the next. To exon-jump, select a feature track and press Shift+Ctrl+F to center the next exon in your view, Shift+Ctrl+B to move back one exon.
The back and forward buttons in the toolbar () allow you to move backward and forward through your views of the genome the way you move back and forward in a web browser.