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08:03
Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
Published on: December 7, 2021
A phylogeny-driven genomic encyclopaedia of Bacteria and Archaea
Dongying Wu1, Philip Hugenholtz, Konstantinos Mavromatis
1DOE Joint Genome Institute, Walnut Creek, California 94598, USA.
Nature
|December 25, 2009
Summary
Sequencing microbial genomes based on evolutionary relationships, rather than just physiology, offers significant advantages. This phylogenomic approach enhances understanding of microbial diversity and function.
Area of Science:
- Microbiology
- Genomics
- Bioinformatics
Background:
- Nearly 1,000 bacterial and archaeal genomes are available, but selection based on physiology creates a biased phylogenetic view.
- Current genomic databases lack diverse phylogenetic representation, limiting comprehensive microbial understanding.
Purpose of the Study:
- To investigate the benefits of selecting microbial genomes for sequencing based on evolutionary relationships (phylogenetics).
- To assess the added value of a phylogenomic approach compared to random genome selection.
Main Methods:
- Sequenced and analyzed genomes of 56 culturable bacterial and archaeal species.
- Selected species to maximize phylogenetic coverage.
- Compared results with a randomly selected set of genomes from existing databases.
Main Results:
- Phylogenetic selection yielded significant benefits in reconstructing evolutionary history.
- Enabled discovery of novel protein families and biological properties.
- Improved prediction of gene functions for known genes from other organisms.
Conclusions:
- A phylogenomic strategy significantly enhances the value derived from microbial genome data.
- Strongly supports systematic, phylogeny-driven efforts like a 'Genomic Encyclopedia of Bacteria and Archaea'.
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