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Journal ArticleDOI

UPARSE: highly accurate OTU sequences from microbial amplicon reads

Robert C. Edgar
- 01 Oct 2013 - 
- Vol. 10, Iss: 10, pp 996-998
TLDR
The UPARSE pipeline reports operational taxonomic unit (OTU) sequences with ≤1% incorrect bases in artificial microbial community tests, compared with >3% correct bases commonly reported by other methods.
Abstract
Amplified marker-gene sequences can be used to understand microbial community structure, but they suffer from a high level of sequencing and amplification artifacts. The UPARSE pipeline reports operational taxonomic unit (OTU) sequences with ≤1% incorrect bases in artificial microbial community tests, compared with >3% incorrect bases commonly reported by other methods. The improved accuracy results in far fewer OTUs, consistently closer to the expected number of species in a community.

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Citations
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Journal ArticleDOI

Estimating diversity via frequency ratios.

TL;DR: In this paper, a nonlinear regression model for the ratios of consecutive frequency counts is proposed to estimate the total number of classes in a population based on sample counts, especially in the presence of high latent diversity.
Journal ArticleDOI

Inulin-type fructan improves diabetic phenotype and gut microbiota profiles in rats.

TL;DR: It is found that inulin treatment reduced fasting blood glucose levels and alleviated glucose intolerance and blood lipid panels in diabetic rats and can alleviate gut microbiota dysbiosis in T2D model rats.
Journal ArticleDOI

Differentiation strategies of soil rare and abundant microbial taxa in response to changing climatic regimes.

TL;DR: The study indicates that the taxonomically and functionally diverse rare biosphere has the potential to increase functional redundancy and enhance the ability of soil communities to counteract environmental disturbances.
Journal ArticleDOI

Population-level analysis of Blastocystis subtype prevalence and variation in the human gut microbiota.

TL;DR: It is shown its prevalence is reduced in patients with active IBD and demonstrated that subtype characterisation is essential for assessing the relationship between Blastocystis, microbiota profile and host health, which have direct clinical applications, especially in donor selection for faecal transplantation.
References
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Journal ArticleDOI

Search and clustering orders of magnitude faster than BLAST

Robert C. Edgar
- 01 Oct 2010 - 
TL;DR: UCLUST is a new clustering method that exploits USEARCH to assign sequences to clusters and offers several advantages over the widely used program CD-HIT, including higher speed, lower memory use, improved sensitivity, clustering at lower identities and classification of much larger datasets.
Journal ArticleDOI

UCHIME improves sensitivity and speed of chimera detection

TL;DR: UCHIME has better sensitivity than ChimeraSlayer (previously the most sensitive database method), especially with short, noisy sequences, and in testing on artificial bacterial communities with known composition, UCHIME de novo sensitivity is shown to be comparable to Perseus.
Journal ArticleDOI

Database resources of the National Center for Biotechnology Information

TL;DR: In addition to maintaining the GenBank(R) nucleic acid sequence database, the National Center for Biotechnology Information (NCBI) provides data analysis and retrieval resources for the data in GenBank and other biological data made available through NCBI’s website.
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