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Updated: Jul 1, 2026
08:57
Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
Published on: August 14, 2018
Effect of site-specific heterogeneous evolution on phylogenetic reconstruction: a simple evaluation
Qiqun Cheng1, Zhixi Su, Yang Zhong
1Institute of Biomedical Sciences, Fudan University, Shanghai 200433, China.
Gene
|September 10, 2008
Summary
Heterogeneous evolution can distort phylogenetic analysis. Removing these evolutionary sites using DIVERGE software improves phylogenetic tree accuracy, offering a more reliable method for evolutionary studies.
Area of Science:
- Evolutionary Biology
- Bioinformatics
- Genomics
Background:
- Heterogeneous evolutionary rates across sites can significantly impact phylogenetic analysis.
- This issue has been historically overlooked in many evolutionary studies.
- Accurate phylogenetic reconstruction is crucial for understanding evolutionary relationships.
Purpose of the Study:
- To evaluate the impact of heterogeneous evolution on phylogenetic analysis.
- To demonstrate an effective method for identifying and removing sites with heterogeneous evolution.
- To provide a practical tool for improving phylogenetic accuracy.
Main Methods:
- Utilized 18 fish mitogenomic coding sequences for analysis.
- Employed the DIVERGE software to detect sites exhibiting heterogeneous evolution.
- Compared phylogenetic trees constructed with and without the identified heterogeneous sites.
Main Results:
- Identified 198 amino acid sites with heterogeneous evolutionary rates.
- Demonstrated that removing these sites results in a virtually homogeneous evolutionary rate across remaining sites.
- Observed notable differences between phylogenetic trees generated before and after removing heterogeneous sites.
Conclusions:
- Identifying and removing sites with heterogeneous evolution is an effective strategy for accurate phylogenetic reconstruction.
- The DIVERGE software can be utilized to mitigate the influence of heterogeneous evolution.
- This approach enhances the reliability of phylogenetic trees in evolutionary studies.
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