I wish to understand the term suppressed in folder nomenclature on the NCBI ftp genomes website?

Example: here ftp://ftp.ncbi.nlm.nih.gov/genomes/refseq/bacteria/Oscillatoriales_cyanobacterium_C42_A2020_001/all_assembly_versions/

Normally, I'd see folders with names like representative or latest assembly, which are pretty straightforward. But what does suppressed refer to in this case?

Thank you for your time!


1 Answer 1


Here you have the explanation:

Suppressed genomes: Several hundred RefSeq bacterial genomes that did not pass assembly or annotation quality validation have been suppressed(RefSeq genome quality criteria). An FTP report file listing the most recent suppressions will be provided soon in the RefSeq FTP site.


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