Lineage (evolution)
An evolutionary lineage is a temporal series of populations, organisms, cells, or genes connected by a continuous line of descent from ancestor to descendant.molecular systematics.
Phylogenetic representation of lineages
Lineages are typically visualized as subsets of a
cluster
individuals by similarity.
Just as a map is a scaled approximation of true
evolutionary relationships. For example, in a full tree of life, the entire clade of animals can be collapsed to a single branch of the tree. However, this is merely a limitation of rendering space. In theory, a true and complete tree for all living organisms or for any DNA
sequence could be generated.
See also
References
- ^ The University of California, Berkeley resource on understanding evolution defines a lineage as "A continuous line of descent; a series of organisms, populations, cells, or genes connected by ancestor/descendant relationships." Understanding Evolution, Glossary of Terms
- ^ The Oxford English Dictionary defines biological lineage as "a sequence of species each of which is considered to have evolved from its predecessor."OED definition of lineage