Current challenges and best-practice protocols for microbiome analysis

Richa Bharti, Dominik G. Grimm

Research output: Contribution to journalReview articlepeer-review

240 Scopus citations

Abstract

Analyzing the microbiome of diverse species and environments using next-generation sequencing techniques has significantly enhanced our understanding on metabolic, physiological and ecological roles of environmental microorganisms. However, the analysis of the microbiome is affected by experimental conditions (e.g. sequencing errors and genomic repeats) and computationally intensive and cumbersome downstream analysis (e.g. quality control, assembly, binning and statistical analyses). Moreover, the introduction of new sequencing technologies and protocols led to a flood of new methodologies, which also have an immediate effect on the results of the analyses. The aim of this work is to review the most important workflows for 16S rRNA sequencing and shotgun and long-read metagenomics, as well as to provide best-practice protocols on experimental design, sample processing, sequencing, assembly, binning, annotation and visualization. To simplify and standardize the computational analysis, we provide a set of best-practice workflows for 16S rRNA and metagenomic sequencing data (available at https://github.com/grimmlab/MicrobiomeBestPracticeReview).

Original languageEnglish
Pages (from-to)178-193
Number of pages16
JournalBriefings in Bioinformatics
Volume22
Issue number1
DOIs
StatePublished - 1 Jan 2021
Externally publishedYes

Keywords

  • 16S rRNA sequencing
  • amplicon sequencing
  • assembly
  • functional and taxonomic classification
  • metagenomics
  • microbiome

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