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Catagenesis (biology)
From Wikipedia, the free encyclopedia
Catagenesis is an archaic term from evolutionary biology referring to evolutionary directions that were considered "retrogressive." It was a term used in contrast to anagenesis, which in present usage denotes the evolution of a single population into a new form without branching lines of descent. Cladogenesis is the term used for branching lines of descent, i.e., when the evolutionary origin of a new form is not accompanied by the disappearance of the ancestral form.
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| Evidence of evolution | |
| Processes of evolution | Adaptation · Macroevolution · Microevolution · Speciation |
| Population genetic mechanisms | natural selection · genetic drift · gene flow · mutation |
| Evolutionary developmental biology (Evo-devo) concepts |
Phenotypic plasticity · Canalisation · Modularity |
| Modes of evolution | Anagenesis · Catagenesis · Cladogenesis |
| History | History of evolutionary thought · Charles Darwin · On the Origin of Species · Modern evolutionary synthesis · Evolutionary history of life |
| Other subfields | Ecological genetics · Human evolution · Molecular evolution · Phylogenetics · Systematics |
| List of evolutionary biology topics · Timeline of evolution | |
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