anagenesis
- noun
- /ˌænəˈdʒɛnɪsɪs/
- Specialized
:
anagénesis
- An example of anagenesis can be seen in the evolution of the horse, where gradual changes occurred within the same lineage over millions of years.
Examples
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Also, it is entirely possible in principle that most evolutionary change occurs within a single lineage (anagenesis) rather than via branching (cladogenesis).
Blog text (8) -
Note that language richness is generally the product of language-splitting events (cladogenesis), whereas phylogenetic diversity and disparity are produced by both anagenesis (change within lineages) and cladogenesis (figure 3).
Academic text (2013) -
I fail to see where biological transmutation is any more far-fetched than panspermia, punctuated equilibrium (cladogenesis), or phyletic gradualism (anagenesis), etc.
Blog text (12) -
The concept of anagenesis explains how certain species can evolve significant traits without splitting into distinct species.
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Researchers are studying anagenesis to understand how species can adapt over time through changes within a single lineage, rather than through new species formation.
Synonyms
1
7.7
Small changes in the genes of a species over a short time
Surface Forms
Morphology
Etymology
Anagenesis comes from Greek parts ana- meaning 'again' and -genesis meaning 'origin' or 'birth', the same root in genesis and generate. So, anagenesis is when a single species slowly 'gives birth' to a new form over time without splitting into a separate species.