INI
NCBI Taxonomy - INI
NCBI Taxonomy (National Center for Biotechnology Information Taxonomy) is a database that systematically organizes the classification and nomenclature of all organisms registered in public sequence databases, maintained by the National Center for Biotechnology Information in the United States. It currently covers approximately 10% of described species on Earth and plays a crucial role in linking genetic sequence data with biological classification. The database hierarchically organizes major organism groups including Archaea, Bacteria, Eukaryota, and Viruses, and is widely used worldwide as a foundation for biomedical research and bioinformatics analysis.
biological classification
database
bioinformatics
gene sequences
phylogenetics
NCBI
[item.archaea]
code=2157
slug=archaea
name=Archaea
description=A domain of prokaryotic organisms distinct from bacteria, comprising single-celled organisms adapted to extreme environments.
lineage=cellular organisms
rank=domain
taxonomyId=2157
[item.bacteria]
code=2
slug=bacteria
name=Bacteria
description=The most diverse and ubiquitously distributed domain of prokaryotic organisms.
lineage=cellular organisms
rank=domain
taxonomyId=2
[item.eukaryota]
code=2759
slug=eukaryota
name=Eukaryota
description=A domain of organisms whose cells contain a membrane-bound nucleus.
lineage=cellular organisms
rank=domain
taxonomyId=2759
[item.viruses]
code=10239
slug=viruses
name=Viruses
description=Non-cellular infectious agents that depend on host cells for replication.
lineage=root
rank=superkingdom
taxonomyId=10239
[item.other-sequences]
code=28384
slug=other-sequences
name=Other sequences
description=A category containing non-organismal sequence data such as artificial sequences, plasmids, and transposons.
lineage=other entries
rank=no rank
taxonomyId=28384
[item.unclassified-sequences]
code=12908
slug=unclassified-sequences
name=Unclassified sequences
description=A category containing sequences that cannot be assigned to specific taxonomic groups or derived from environmental samples.
lineage=unclassified entries
rank=no rank
taxonomyId=12908