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How to show a custom genome in IGB

  1. Return to the IGB Start Screen. To return to the start screen, click the Home icon in the Toolbar. You can also select "Species" in the Species menu in the Current Genome tab.
  2. Select File > Custom Genome to open the Custom Genome window
  3. Enter a species name and genome version name.
  4. Select a reference sequence file. 
  5. Click OK.Select File > Open Genome from File... (or click the DNA icon in the Toolbar.)
  6. Select a sequence file to use as the reference genome (fasta or 2bit format).
  7. Optional: Enter an IGB-friendly genome version name (optional)
  8. Optional: Enter the species name, including genus, species and variety as appropriate (optional)  
  9. click OK

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Viewing reference gene model annotations


Note: The sequence names in your gene models file and reference sequence file need to match. If they don't, then you can create a chromosome synonyms filethat IGB will use to match names.

For advanced users - Naming genomes and genome versions

Naming a Genome

If you are building a genome for display in IGB, we recommend that you give it an IGB-friendly name, consisting of a genus and species prefix combined with the month and year of release, following the pattern:



  • G is the first letter of the genus
  • species is the species name
  • MMM is the three-letter English abbreviation for the month the genome was released
  • YYYY is the year of the release.

For example, A_thaliana_Jun_2009 is the Arabidopsis thaliana genome assembly released June of 2009.

Using IGB-friendly names ensures that IGB displays the latest genome first in the Genome Version menu in the Current Genome tabbed panel.

If you are working with a subspecies or strain, you can also include the subspecies name.

For example, if you are working with Helicobacter pylori 26695 (released July 2012) then enter species Helicobacter pylori 26695 and genome version H_pylori_26695_Jul_2012.


Adding a Common Name for a Species