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Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
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Assessing the Unseen Bacterial Diversity in Microbial Communities
Alejandro Caro-Quintero1, Howard Ochman2
1Department of Integrative Biology, University of Texas, Austin Present address: Corpoicá C.I Tibaitata, Santáfe de Bogata, Columbia.
Genome Biology and Evolution
|November 29, 2015
Summary
The phyloTAGs method improves microbial community analysis by using faster-evolving protein-coding genes, revealing hundreds of previously undetected bacterial strains in the gorilla gut microbiome.
Area of Science:
- Microbiology
- Bioinformatics
- Genomics
Background:
- 16S ribosomal RNA (rRNA) is a common but limited marker for microbial community analysis due to its slow evolutionary rate.
- This limitation hinders the resolution of closely related bacterial species and strains, masking significant diversity.
Purpose of the Study:
- To develop a novel bioinformatics approach, phyloTAGs, for improved microbial community analysis.
- To overcome the limitations of 16S rRNA sequencing by utilizing faster-evolving protein-coding genes.
Main Methods:
- Developed phyloTAGs, an automated primer design approach adaptable to various taxonomic groups and protein-coding regions.
- Applied phyloTAGs to analyze the gorilla gut microbiome.
Main Results:
- phyloTAGs successfully identified hundreds of bacterial strains missed by traditional 16S ribosomal DNA (rDNA) amplicon sequencing.
- Demonstrated the ability to recover fine-level diversity within microbial communities.
Conclusions:
- phyloTAGs offers a powerful solution for primer design, enabling deeper insights into microbial community structure.
- This method enhances the study of bacterial population stability and dynamics, particularly at the strain level.
Keywords:
bacterial speciesbacterial strain diversitycommunity profilingmicrobiomephylotypespopulation structureMore Related Videos
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