Toward DNA-based taxonomy of prokaryotes and microeukaryotes

Area of Science:

• Microbiology
• Molecular Genetics
• Taxonomy

Background:

• Current rules for naming microorganisms are outdated.
• Molecular genetics tools have advanced organism discovery.
• DNA-based approaches offer potential benefits for microbial taxonomy.

Purpose of the Study:

• To analyze the advantages and disadvantages of DNA-based taxonomic methods.
• To propose guidelines for using DNA-based approaches in describing taxa.
• To advocate for broader use of DNA data in microbial classification.

Main Methods:

• Analysis of current informal practices in DNA-based taxonomy.
• Review of pros and cons of DNA-based taxonomic approaches.
• Development of proposed guidelines and examples for taxon description.

Main Results:

• DNA sequences are already informally used for species description and type material.
• DNA-based methods can facilitate taxon description and communication.
• Guidelines are proposed for the appropriate use of DNA data in taxonomy.

Conclusions:

• Microbial taxonomy can benefit from a shift towards DNA-based approaches.
• Broader use of DNA samples and sequences is recommended for typifying and diagnosing taxa.
• Updated practices are needed to accommodate advances in molecular genetics and organism discovery.