Cladogenesis
From Wikipedia, the free encyclopedia
Cladogenesis is an evolutionary splitting event in which each branch and its smaller branches forms a "clade", an evolutionary mechanism and a process of adaptive evolution that leads to the development of a greater variety of sister organisms.
Cladogenesis is often contrasted with anagenesis, where gradual changes in an ancestral species lead to its eventual "replacement" by a novel form (i.e, there is no "splitting" of the phylogenetic tree.).
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Basic topics in evolutionary biology
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| Evidence of evolution |
| Processes of evolution: adaptation - macroevolution - microevolution - speciation |
| Population genetic mechanisms: selection - genetic drift - gene flow - mutation |
| Evo-devo concepts: phenotypic plasticity - canalisation - modularity |
| Modes of evolution: anagenesis - catagenesis - cladogenesis |
| History: History of evolutionary thought - Charles Darwin - The Origin of Species - modern evolutionary synthesis |
| Other subfields: ecological genetics - human evolution - molecular evolution - phylogenetics - systematics |
| List of evolutionary biology topics | Timeline of evolution |
