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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.

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Effects of antimony on anaerobic methane oxidization and microbial community in an antimony-contaminated paddy soil: A microcosm study.

TL;DR: It is suggested that Sb contamination might inhibit only AOM but not methane production, and amplicon high-throughput sequencing showed that the Sb addition impaired the diversity of microbial communities and impacted the biotic interactions in the soil.
Journal ArticleDOI

Establishment of Culex modestus in Belgium and a Glance into the Virome of Belgian Mosquito Species.

TL;DR: In this article, the authors reported the presence of Culex modestus in the city of Leuven and surrounding areas in the summers of 2019 and 2020, based on morphological features and partial sequences of the mitochondrial cytochrome oxidase subunit I (COI) gene.
Journal ArticleDOI

Salivary microbiomes of indigenous Tsimane mothers and infants are distinct despite frequent premastication

TL;DR: Salivary microbiota of Tsimane infants and young children up to two years of age do not appear closely related to those of their mothers, despite frequent premastication and preliminary evidence that maternal bacteria is transmitted to premasticated foods.
Posted ContentDOI

SCNIC: Sparse Correlation Network Investigation for Compositional Data

TL;DR: This work applied SCNIC to a published dataset comparing microbiome composition in men who have sex with men who were at a high risk of contracting HIV to non-MSM and identified microbes that not only differed with MSM-status, but also correlated strongly with each other, suggesting shared environmental drivers or cooperative relationships among them.
Journal ArticleDOI

Endophytic Microbiome Variation Among Single Plant Seeds

- 01 Jan 2022 - 
TL;DR: In this article , a protocol for extracting microbial DNA from an individual seed (common bean, Phaseolus vulgaris) with minimal disruption of host tissue, which is generalizable to other medium and large-seed plant species, is presented.
References
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Journal ArticleDOI

edgeR: a Bioconductor package for differential expression analysis of digital gene expression data.

TL;DR: EdgeR as mentioned in this paper is a Bioconductor software package for examining differential expression of replicated count data, which uses an overdispersed Poisson model to account for both biological and technical variability and empirical Bayes methods are used to moderate the degree of overdispersion across transcripts, improving the reliability of inference.
Journal ArticleDOI

Naïve Bayesian Classifier for Rapid Assignment of rRNA Sequences into the New Bacterial Taxonomy

TL;DR: The RDP Classifier can rapidly and accurately classify bacterial 16S rRNA sequences into the new higher-order taxonomy proposed in Bergey's Taxonomic Outline of the Prokaryotes, and the majority of the classification errors appear to be due to anomalies in the current taxonomies.
Journal ArticleDOI

Differential expression analysis for sequence count data.

Simon Anders, +1 more
- 27 Oct 2010 - 
TL;DR: A method based on the negative binomial distribution, with variance and mean linked by local regression, is proposed and an implementation, DESeq, as an R/Bioconductor package is presented.
Journal ArticleDOI

Metagenomic biomarker discovery and explanation

TL;DR: A new method for metagenomic biomarker discovery is described and validates by way of class comparison, tests of biological consistency and effect size estimation to address the challenge of finding organisms, genes, or pathways that consistently explain the differences between two or more microbial communities.
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