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Updated: Aug 6, 2026

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
Published on: August 14, 2018
Common Ancestry, Contemporary Phylogenetics, and Process Ontology
Maureen Kearney1, Matthew H Haber2
1Consortium for Science, Policy and Outcomes, Arizona State University, Washington, DC, US.
Phylogenetic diversification reveals complex evolutionary patterns, necessitating a multidimensional systems theory. Understanding phylogeny as interacting lineage histories and embracing a process ontology clarifies biological individuality and evolutionary processes.
Area of Science:
- Systematics
- Evolutionary Biology
- Theoretical Biology
Background:
- Recent advances challenge traditional views of the Tree of Life and phylogenetic entities.
- Phylogenetic diversification exhibits extraordinary complexity across spatial, temporal, and hierarchical dimensions.
- Traditional views struggle to accommodate multimodal evolution (vertical and horizontal) and multi-layered lineage histories.
Purpose of the Study:
- To propose an updated conceptual basis for phylogenetics.
- To advocate for a phylogenetic systems theory integrating multidimensional aspects.
- To establish a process ontology as the logical foundation for contemporary phylogenetics.
Main Methods:
- Conceptual synthesis of recent empirical advances in phylogenetics.
- Analysis of multidimensional influences (spatial, temporal, hierarchical) on phylogenetic diversification.
- Development of a process ontology to address fuzzy boundaries of biological entities.
Main Results:
- Phylogeny is best viewed as a complex, multidimensional system with interacting lineage histories.
- Hierarchical dimensions introduce influences like emergence and constraint.
- Multimodal evolution (vertical and horizontal) shapes diversification patterns.
- A process ontology framework reconciles fuzzy boundaries of biological entities and individuality.
Conclusions:
- An opportune time exists for developing a phylogenetic systems theory.
- A process ontology provides a robust logical foundation for modern phylogenetics.
- Fuzzy boundaries of biological entities necessitate new approaches in systematics and philosophy of biology.
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The Tree of Life - Bacteria, Archaea, Eukaryotes

