Metagenome-Assembled Genome Extraction: Workflow Tutorial

Added:

Workflow Setup
Read QC and Trimming
Taxonomic Profiling
Metagenome Assembly
Genome Binning
Bin Refinement
MAG Extraction and Annotation
Phylogenetic Analysis
Functional Profiling
Result Summary

Workflow Setup

0:00
Playing Section
  • 1

    Introduces a narrative for metagenome analysis using compost enrichment data.

  • 2

    Explains dynamic versus static narrative versions and their uses in KBase.

  • 3

    Highlights the importance of multiple enrichments for improved genome recovery.

Fundamental concepts of metagenomics, including the differences between single-isolate sequencing and environmental shotgun sequencing.
Basic understanding of DNA sequencing workflows, particularly raw read processing, assembly of reads into contigs, and scaffolding.
The conceptual framework of genome binning, which involves grouping assembled contigs into draft genomes based on coverage and composition metrics.
Familiarity with the KBase (Systems Biology Knowledgebase) user interface and the execution of bioinformatics workflows via 'Narratives'.
Methods for evaluating the quality, completeness, and contamination level of MAGs using standardized tools like CheckM or CheckM2.
Taxonomic classification and phylogenetic placement of newly extracted MAGs using reference databases like the Genome Taxonomy Database (GTDB-Tk).
Functional annotation and metabolic reconstruction of the MAGs to predict microbial physiology and ecological roles within their community.
Comparative genomics and pangenome analysis to identify novel genes, metabolic pathways, and evolutionary relationships among related MAGs.
5.7K views96likes54:18@DOEKBaseOriginal Release: 2022-12-16

This webinar demonstrates a comprehensive workflow for extracting metagenome-assembled genomes (MAGs) from microbial community sequencing data, including quality trimming of reads, taxonomic profiling using Kaiju, metagenome assembly with multiple assemblers, differential coverage binning using MaxBin 2, MetaBAT 2, and CONCOCT, consensus binning with DAS Tool, quality assessment using CheckM, and functional annotation using GTDBtk, Species Tree, and HMMER profiling to understand organism roles in ecosystems.