The NCBI Entrez Taxonomy Homepage


The NCBI taxonomy database contains the names of all organisms that are represented in the genetic databases with at least one nucleotide or protein sequence. Click on the tree if you want to browse the taxonomic structure or retrieve sequence data for a particular group of organisms.


These are direct links to some of the organisms commonly used in molecular research projects:

 Arabidopsis thaliana  Hepatitis C virus  Pneumocystis carinii
 Bos taurus  Homo sapiens  Rattus norvegicus
 Caenorhabditis elegans  Magnaporthe grisea  Saccharomyces cerevisiae
 Chlamydomonas reinhardtii  Mus musculus  Schizosaccharomyces pombe
 Danio rerio (zebrafish)  Mycoplasma pneumoniae  Takifugu rubripes
 Dictyostelium discoideum  Neurospora crassa  Xenopus laevis
 Drosophila melanogaster  Oryza sativa  Zea mays
 Escherichia coli  Plasmodium falciparum

Comments and questions to info@ncbi.nlm.nih.gov
Credits: Joe Bischoff, Mikhail Domrachev, Scott Federhen, Carol Hotton, Detlef Leipe, Vladimir Soussov, Richard Sternberg, Sean Turner.