Format
GFF3
The successor annotation format with strict parent-child relationships and URL-encoded attributes; common from NCBI and non-model organisms.
Extensions: .gff3, .gff · Coordinates: 1-based-closed · Specification
From GFF3
No conversions from this format yet.
To GFF3
- How to Convert GTF to GFF3 (and Why IDs Go Missing)
gffread reconstructs the Parent hierarchy GFF3 demands, but only if your GTF's gene_id and transcript_id were consistent to begin with.