Dendrogram of a hierarchical clustering (UPGMA) with the height of the nodes (adapted from bacterial 5S rRNA sequence data[1]).Dendrogram output for hierarchical clustering of marine provinces using presence / absence of sponge species.[2]A dendrogram of the Tree of Life. This phylogenetic tree is adapted from Woese et al. rRNA analysis.[3] The vertical line at bottom represents the last universal common ancestor (LUCA).Heatmap of RNA-Seq data showing two dendrograms in the left and top margins.
A dendrogram is a diagram representing a tree. This diagrammatic representation is frequently used in different contexts:
in hierarchical clustering, it illustrates the arrangement of the clusters produced by the corresponding analyses.[4]
The name dendrogram derives from the two ancient greek words δένδρον (déndron), meaning "tree", and γράμμα (grámma), meaning "drawing, mathematical figure".[7][8]
^Swofford DL, Olsen GJ, Waddell PJ, Hillis DM (1996). "Phylogenetic inference". In Hillis DM, Moritz C, Mable BK (eds.). Molecular Systematics, 2nd edition. Sunderland, MA: Sinauer. pp. 407–514. ISBN9780878932825.