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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

Influence of bioaugmentation and biostimulation on PAH degradation in aged contaminated soils: Response and dynamics of the bacterial community.

TL;DR: Investigating the degradation of PAHs in chronically contaminated, aged and weathered soils obtained from a former gas plant of Australia suggested that the natural community exhibited sufficient resilience and diversity to enable an active, but changing degrading community at all stages of the degradation process.
Journal ArticleDOI

Delivery mode and gut microbial changes correlate with an increased risk of childhood asthma

TL;DR: Investigation of the effects of cesarean section delivery on gut microbial composition by 16S rRNA gene amplicon sequencing during the first year of life found that appropriate maturation of the gut microbiota could mitigate against the increased asthma risk associated with gut microbial changes due to cesaren section delivery.
Book ChapterDOI

Learning ecological networks from next-generation sequencing data

TL;DR: Three case studies, in which species associations or interactions have been revealed with NGS and several currently available statistical and machine-learning approaches that could be used for reconstructing networks of direct interactions between species, based on the NGS co-occurrence data are reviewed.
Journal ArticleDOI

Isolation and analysis of microbial communities in soil, rhizosphere, and roots in perennial grass experiments

TL;DR: Methods presented here provide a complete set of steps for how to collect field samples, isolate, extract, quantify, amplify, and sequence DNA, and analyze microbial community diversity and composition in replicated field trials.
Journal ArticleDOI

Taxonomic Identification of Ruminal Epithelial Bacterial Diversity during Rumen Development in Goats

TL;DR: Coloration by ruminal epithelial bacteria is age related and might participate in the anatomic and functional development of the rumen and the relationship between the microbiota and the host.
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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