anagenesis

Noun.  The evolution of a new species by the large scale change in gene frequency so that the new species replaces the old rather than branching to produce an additional species.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.