Tree Terminology
branch
: defines the relationship between the
taxa in terms of descent and ancestry
‚branch
length : often represents the number
of changes that have occurred in
that branch
ƒdistance
scale : scale which represents the number of differences between sequences (e.g. 0.1 means 10 % differences between two sequences)
„node
: a node represents a taxonomic
unit. This can be a taxon (an
existing species) or an ancestor
(unknown species : represents
the ancestor of 2 or more
species).
…root
: is the common ancestor of all taxa
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