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Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies
Published on: August 20, 2021
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scMicrobe PTA: near complete genomes from single bacterial cells.
Robert M Bowers1, Veronica Gonzalez-Pena2, Kartika Wardhani2
1DOE Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, United States.
ISME Communications
|July 18, 2024
Summary
Primary template-directed amplification (PTA) generates nearly complete microbial genomes from single cells. This novel method significantly improves genome recovery from diverse environments compared to standard techniques.
Area of Science:
- Microbiology
- Genomics
- Molecular Biology
Background:
- Standard single-cell amplification methods often yield incomplete microbial genomes.
- Accurate genome reconstruction is crucial for understanding microbial diversity and function.
Purpose of the Study:
- To introduce and evaluate primary template-directed amplification (PTA) as a novel single-cell genome amplification technique.
- To compare the completeness and content of genomes generated by PTA versus standard methods.
Main Methods:
- Primary template-directed amplification (PTA) was employed for single-cell genome amplification.
- Comparative analysis of genome completeness and content was performed against standard multiple displacement amplification (MDA) methods.
Main Results:
- PTA successfully generated nearly complete genomes from bacterial isolates.
- PTA achieved a median genome completeness of 81% for diverse microbiomes, significantly outperforming standard MDA (<30% completeness).
- PTA-recovered genomes contained more associated viruses and biosynthetic gene clusters.
Conclusions:
- PTA is a highly effective technique for recovering near-complete microbial genomes from single cells.
- PTA substantially enhances genomic data recovery from complex environmental samples.
- This method offers improved insights into viral communities and metabolic potential within microbiomes.
