Related Experiment Video
Updated: May 8, 2026
10:31
Isolation and Analysis of Microbial Communities in Soil, Rhizosphere, and Roots in Perennial Grass Experiments
Published on: July 24, 2018
UPARSE: highly accurate OTU sequences from microbial amplicon reads.
1Independent Investigator, Tiburon, California, USA.
Nature Methods
|August 20, 2013
Summary
The UPARSE pipeline significantly reduces errors in marker-gene sequencing for microbial community analysis. This method yields more accurate operational taxonomic units (OTUs), providing a clearer picture of microbial diversity.
Area of Science:
- Microbiology
- Bioinformatics
- Genomics
Background:
- Marker-gene sequencing is crucial for microbial community structure analysis.
- Existing methods are prone to significant sequencing and amplification artifacts.
- These artifacts complicate accurate assessment of microbial diversity.
Purpose of the Study:
- To evaluate the accuracy of the UPARSE pipeline in processing amplified marker-gene sequences.
- To compare the UPARSE pipeline's performance against other common methods.
- To determine if UPARSE improves the accuracy of operational taxonomic unit (OTU) identification.
Main Methods:
- Utilized artificial microbial communities for testing.
- Employed the UPARSE pipeline for sequence processing.
- Quantified the percentage of incorrect bases in resulting OTU sequences.
Main Results:
- The UPARSE pipeline achieved ≤1% incorrect bases in OTU sequences.
- Other methods commonly reported >3% incorrect bases.
- UPARSE resulted in significantly fewer OTUs compared to other methods.
- The number of OTUs generated by UPARSE more closely matched the expected species count.
Conclusions:
- The UPARSE pipeline offers a substantial improvement in the accuracy of microbial community analysis.
- Reduced artifacts lead to a more precise estimation of microbial diversity.
- UPARSE is a valuable tool for researchers studying microbial ecology and evolution.
Related Concept Videos
03:21RNA-seq
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
01:29Modern Molecular Taxonomy
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...