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Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
Published on: December 7, 2021
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Popmarker: Identifying Phylogenetic Markers at the Population Level.
Huei-Mien Ke1, Chun-Ping Yu1, Yu-Ching Liu1
1Biodiversity Research Center, Academia Sinica (BRCAS), Taipei, Taiwan.
Evolutionary Bioinformatics Online
|November 7, 2017
Summary
Identifying accurate bacterial species requires robust phylogenetic markers. Popmarker software finds minimal protein sets for precise bacterial evolution and population-level classification, improving microbiome studies.
Area of Science:
- Microbiology
- Bioinformatics
- Evolutionary Biology
Background:
- Phylogenomic approaches are essential for accurate bacterial phylogeny.
- Single molecular markers like 16S ribosomal DNA can lead to species misclassification.
Purpose of the Study:
- To present Popmarker, a program for identifying minimal molecular markers for bacterial phylogenies.
- To achieve population-level resolution in bacterial evolution and phylogenetic relationships.
Main Methods:
- Popmarker ranks proteomes based on correlation between species tree branch length and orthologous sequence distances.
- The program identifies a minimum set of molecular markers reflecting evolutionary history.
Main Results:
- Five top-ranked proteins achieved the same resolution as 2203 single-copy orthologous genes.
- Accurate species classification and correct splitting of bacterial groups were demonstrated.
- Top-ranking genes are candidates for speciation and distinguishing closely related species.
Conclusions:
- Popmarker effectively identifies minimal marker sets for accurate bacterial phylogenetics.
- The identified markers enhance species classification and population-level resolution in microbiome studies.
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