Clustering 16S rRNA for OTU prediction: a method of unsupervised Bayesian clustering

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Clustering 16S rRNA for OTU prediction: a method of unsupervised Bayesian clustering

MOTIVATION With the advancements of next-generation sequencing technology, it is now possible to study samples directly obtained from the environment. Particularly, 16S rRNA gene sequences have been frequently used to profile the diversity of organisms in a sample. However, such studies are still taxed to determine both the number of operational taxonomic units (OTUs) and their relative abundan...

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BACKGROUND High-throughput bacterial 16S rRNA gene sequencing followed by clustering of short sequences into operational taxonomic units (OTUs) is widely used for microbiome profiling. However, clustering of short 16S rRNA gene reads into biologically meaningful OTUs is challenging, in part because nucleotide variation along the 16S rRNA gene is only partially captured by short reads. The recen...

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UNLABELLED Pyrosequencing technologies are frequently used for sequencing the 16S ribosomal RNA marker gene for profiling microbial communities. Clustering of the produced reads is an important but time-consuming task. We present Dynamic Seed-based Clustering (DySC), a new tool based on the greedy clustering approach that uses a dynamic seeding strategy. Evaluations based on the normalized mutu...

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ژورنال

عنوان ژورنال: Bioinformatics

سال: 2011

ISSN: 1460-2059,1367-4803

DOI: 10.1093/bioinformatics/btq725