How do I upload a gff file?

Abbreviated Question: 
How do I upload a gff file?

Tabix is a program that is necessary to be able to index the gff file for upload and display in Jbrowse.  However, getting a gff file viewable in jbrowse is a little more work than a bed file. 

1. Sort your gff file by scaffold name and position.  Typically this works like "sort -k1,1V -k4,5n file.gff >sorted_file.gff"

2.  Zip your file with bgzip.  As simple as "bgzip sorted_file.gff"

3.  Index your zipped file with tabix.  "tabix -p gff sorted_file.gff.gz"

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