Identified by Accession-Number
e.g.: NC_000913 for E.coli K-12 MG1655 chromosome
Represent chromosomes or plasmids. Clicking on the designation of the node will select it and forward you to the "Target Search" page.

Identified by Tax-id
e.g.: 511145 for E.coli K-12 MG1655
Taxonomic Node with genomes/plasmids directly associated,
often with the rank of "species" or "subspecies" therefore
called "Species Node" in this context.
Clicking the designation of the node will select all
directly associated genomes/plasmids and forward
you to the "Target Search" page.

Taxonomic Node with no genomes directly associated.