Definition of Term

cladogram

(English) A cladogram is a special phylogenetic tree, usually with implied ancestry based on shared derived characters, and with a relative time axis, also: a dendrogram or tree-like diagram expressing the evolutionary relationships among a group of organisms in terms of recency of common ancestra or descent. All taxa are terminal in position, the identity of nodes (ancestors) are not specified and connecting lines represent shared derived characters (synapomorphies). Any two branch tips sharing the same immediate node are most closely related. A cladogram only specifies the relative degrees of phylogenetic relationship (sistergroup relationships) of the analysed taxa, as well as their monophyly. (See also: tree, phylogeny, genealogy)

cladogramme

(French) Arbre phylogénétique spécial, habituellement avec une ascendance implicite basée sur les caractères dérivés partagés, et selon un axe chronologique (See also: tree, phylogeny, genealogy)

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