Metagenomic Assembly: Reconstructing Genomes from Metagenomes
Zhang Wang1, Jie-Liang Liang1, Li-Nan Huang2
1Institute of Ecological Science, School of Life Science, South China Normal University, Guangzhou, Guangdong Province, China.
Methods in Molecular Biology (Clifton, N.J.)
|May 7, 2021
Summary
Metagenomic assembly reconstructs microbial genomes from sequencing data. This workflow details steps for reliable genome reconstruction, aiding in understanding microbial communities and their functions.
Area of Science:
- Microbiology
- Genomics
- Bioinformatics
Background:
- Metagenomic assembly is crucial for understanding microbial communities.
- Advances in sequencing and algorithms enable microbial genome reconstruction.
- Disentangling community complexity requires accurate genome assembly.
Purpose of the Study:
- To introduce a standard metagenomic assembly workflow.
- To detail steps for reconstructing microbial genomes from metagenomes.
- To present a case study demonstrating the workflow's application.
Main Methods:
- Read quality filtering
- Metagenomic assembly
- Contig/scaffold binning
- Post-assembly checks for completeness and contamination
Main Results:
- The workflow enables reliable reconstruction of microbial genomes.
- Near-complete microbial genomes were reconstructed in a case study.
- The process ensures genome completeness and minimizes contamination.
Conclusions:
- The presented workflow is effective for metagenomic assembly.
- This approach facilitates the study of microbial community functions.
- Reliable genome reconstruction is achievable with current technologies.
Related Concept Videos
Genome Annotation and Assembly
19.7K
The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
19.7K
Genomics
38.4K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
38.4K
Evolutionary Relationships through Genome Comparisons
6.5K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
6.5K
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
14.6K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
14.6K


