scispace - formally typeset
Open AccessJournal ArticleDOI

Differential abundance analysis for microbial marker-gene surveys

TLDR
It is shown that metagenomeSeq outperforms the tools currently used in this field and relies on a novel normalization technique and a statistical model that accounts for undersampling in large-scale marker-gene studies.
Abstract
We introduce a methodology to assess differential abundance in sparse high-throughput microbial marker-gene survey data. Our approach, implemented in the metagenomeSeq Bioconductor package, relies on a novel normalization technique and a statistical model that accounts for undersampling-a common feature of large-scale marker-gene studies. Using simulated data and several published microbiota data sets, we show that metagenomeSeq outperforms the tools currently used in this field.

read more

Citations
More filters
Journal ArticleDOI

Transcript-level expression analysis of RNA-seq experiments with HISAT, StringTie and Ballgown

TL;DR: This protocol describes all the steps necessary to process a large set of raw sequencing reads and create lists of gene transcripts, expression levels, and differentially expressed genes and transcripts.
Journal ArticleDOI

Waste not, want not: why rarefying microbiome data is inadmissible.

TL;DR: It is advocated that investigators avoid rarefying altogether and supported statistical theory is provided that simultaneously accounts for library size differences and biological variability using an appropriate mixture model.
Journal ArticleDOI

Analysis of composition of microbiomes: a novel method for studying microbial composition.

TL;DR: The performance of ANCOM is illustrated using two publicly available microbial datasets in the human gut, demonstrating its general applicability to testing hypotheses about compositional differences in microbial communities and accounting for compositionality using log-ratio analysis results in significantly improved inference in microbiota survey data.
Journal ArticleDOI

Human gut microbes impact host serum metabolome and insulin sensitivity

TL;DR: It is shown how the human gut microbiome impacts the serum metabolome and associates with insulin resistance in 277 non-diabetic Danish individuals and suggested that microbial targets may have the potential to diminish insulin resistance and reduce the incidence of common metabolic and cardiovascular disorders.
References
More filters
Journal ArticleDOI

DNACLUST: accurate and efficient clustering of phylogenetic marker genes

TL;DR: DNACLUST is a fast clustering tool specifically designed for clustering highly-similar DNA sequences that improves as the similarity threshold is increased, making it well suited for rapidly removing duplicates and near-duplicates from a dataset, thereby reducing the size of the data being analyzed through more elaborate approaches.
Journal ArticleDOI

ReCount: A multi-experiment resource of analysis-ready RNA-seq gene count datasets

TL;DR: ReCount is an online resource of RNA-seq gene count tables and auxilliary data built from raw RNA sequencing data from 18 different published studies comprising 475 samples and over 8 billion reads, allowing statistical and computational scientists to consider alternative parameter values.
Journal ArticleDOI

An application of statistics to comparative metagenomics

TL;DR: A statistical method is used to compare curated subsystems, to predict the physiology, metabolism, and ecology from metagenomes, and reveals those subsystems that are more, or less, represented in the different environments that are compared.
Journal ArticleDOI

Alignment and clustering of phylogenetic markers - implications for microbial diversity studies

TL;DR: This analysis provides strong evidence that the species-level diversity estimates produced using common OTU methodologies are inflated due to overly stringent parameter choices and describes an example of how semi-supervised clustering can produce OTUs that are more robust to changes in algorithm parameters.
Journal ArticleDOI

Sulfate-reducing bacteria in relation with other potential periodontal pathogens.

TL;DR: A significant positive correlation was observed between the presence of SRB and the proportions of spirochetes in subgingival plaque, although the 2 bacterial groups also occurred separately.
Related Papers (5)