Aggregatibacter segnis

Species in genus Aggregatibacter, family Pasteurellaceae (order Pasteurellales). (from NCBI Taxonomy lineage)

Warning: This taxon splits 1→many across databases. Read the panels carefully.

Names over time

Cross-database view

NCBI

NCBI Taxonomy taxdump · 2026-10-23

taxid: 739

Bacteria > Pseudomonadota > Gammaproteobacteria > Pasteurellales > Pasteurellaceae > Aggregatibacter > Aggregatibacter segnis

GTDB

Release

Aggregatibacter segnis
Aggregatibacter segnis_B
Aggregatibacter segnis_A

id: s__Aggregatibacter segnis / s__Aggregatibacter segnis_B / s__Aggregatibacter segnis_A · GTDB R232

Database's species id. At its weakest, linked by GTDB's own NCBI species id rather than the genome's raw one.

d__Bacteria;p__Pseudomonadota;c__Gammaproteobacteria;o__Enterobacterales;f__Pasteurellaceae;g__Aggregatibacter;s__Aggregatibacter segnis

GTDB R232 places this taxon's 23 genomes in 3 species.

SILVA

Release

Aggregatibacter segnis

id: AY365447 · SILVA 138.2

Walked up to species. At its weakest, linked by walking up 1 level from a strain or subspecies record to the species.

Bacteria;Pseudomonadota;Gammaproteobacteria;Enterobacterales;Pasteurellaceae;Aggregatibacter;

Greengenes2

Release

Aggregatibacter aphrophilus

id: Aggregatibacter aphrophilus · Greengenes2 2024.09

Genome accession. Linked via GTDB R220 genome accessions — the same physical genomes, not a name match.

d__Bacteria; p__Pseudomonadota; c__Gammaproteobacteria; o__Enterobacterales_737866; f__Pasteurellaceae; g__Aggregatibacter_736122; s__Aggregatibacter aphrophilus

Renamed: Greengenes2 gives this taxon a different name in 2022.10, 2024.09.

eHOMD

Release 4.2

Aggregatibacter segnis

id: HMT-762 · eHOMD 4.2

Exact taxid. Linked by NCBI taxid — eHOMD records the same id NCBI does.

Bacteria;Pseudomonadota;Gammaproteobacteria;Pasteurellales;Pasteurellaceae;Aggregatibacter

Only 1 genome — below the threshold for detecting a split, so “current” here means unverified, not confirmed.

Each panel shows one release. Switch a release to see how that database's answer changes — the taxon is held fixed by NCBI taxid, so every panel describes the same organism. Each panel also says how it was linked; how the databases are joined explains the routes.

Lineage by rank

Rank	NCBI	GTDB R232	SILVA 138.2	Greengenes2 2024.09	eHOMD 4.2
domain	Bacteria	Bacteria	Bacteria	Bacteria	Bacteria
phylum	Pseudomonadota	Pseudomonadota	Pseudomonadota	Pseudomonadota	Pseudomonadota
class	Gammaproteobacteria	Gammaproteobacteria	Gammaproteobacteria	Gammaproteobacteria	Gammaproteobacteria
order	Pasteurellales	first rank that differs from NCBI: Enterobacterales	first rank that differs from NCBI: Enterobacterales	first rank that differs from NCBI: Enterobacterales_737866	Pasteurellales
family	Pasteurellaceae	Pasteurellaceae	Pasteurellaceae	Pasteurellaceae	Pasteurellaceae
genus	Aggregatibacter	Aggregatibacter	Aggregatibacter	Aggregatibacter_736122	Aggregatibacter
species	Aggregatibacter segnis	Aggregatibacter segnis	—	Aggregatibacter aphrophilus	—

Each column is the release its box shows. marks the first rank at which a database's name differs from NCBI's, by exact text; a suffix such as _A counts. SILVA's path and eHOMD's columns end at genus, so their species row is blank; the box above names the species. Levels a source labels outside these seven ranks are in the API's ranks and not drawn here.

Names in NCBI

from NCBI Taxonomy taxdump · 2026-10-23

Aggregatibacter segniscurrent
Haemophilus segnissynonym

Other names in these databases

GTDB R232

Aggregatibacter segnis
Aggregatibacter segnis_B
Aggregatibacter segnis_A

SILVA 138.2