Introduction to Shotgun Metagenomic Sequencing
Shotgun metagenomic sequencing provides information on the total genomic DNA from all organisms in a sample, avoiding the need for isolation and cultivation of microorganisms or amplification of target regions. This is crucial because it is believed that nearly 99% of all microorganisms cannot be cultivated in the laboratory. Differently from the targeted approach used in the 16S/18S/ITS amplicon sequencing, shotgun metagenomic sequencing uses next-generation sequencing (NGS) technology to provide not only information on the taxonomic annotations of each organism but also the functional profiling, gene prediction and microbial interaction of the whole community.
With extensive experience and well-developed bioinformatics pipelines, Novogene can help you determine the genomes, functions, and variations of microorganisms from diverse samples. Novogene shotgun metagenomic sequencing service delivers high-quality data, publication-ready results, and personalized analysis to meet different research objectives. Novogene offers comprehensive metagenomics solutions from the study of community structure and species classification to system evolution, gene function, and metabolic network of environmental microorganisms.
How does of Shotgun Metagenomic Sequencing work?
From taxonomic profiling to functional analysis and metabolic network, shotgun metagenomic sequencing can be used in many different research topics, including:
- Annotation of microbial composition and function
- Detection of microbes of interest related to human health, environmental recovery, and energy synthesis
- Deep investigation of the genetic makeup and metabolism of microbes for drug development
- Investigation of the microbe-host relationship, which can also be related to the development of new drugs
Advantages of Novogene Shotgun Metagenomic Sequencing
Shotgun metagenomic sequencing helps to sequence multiple prokaryote and eukaryote microorganisms can be sequenced – all in a single run – without specific isolation and cultivation of microorganisms and the amplification of target regions for either prokaryotes or eukaryotes. The sequencing results provide complete information not only on microbial diversity but also functional diversity in the sample.
Novogene has rich experience providing metagenomic sequencing services to help clients study many different types of samples, including soil, fecal, and water. Long reads assembly service is now also provided with Novogene’s significantly improved new metagenome assembly pipeline. It is now possible to achieve even a complete map of some bacteria and fungi, to better support taxonomy resolution and function annotation.
Metagenomic Specifications: DNA Sample Requirements
Metagenomic Specifications: Sequencing and Analysis
|Sequencing Platform||Illumina NovaSeq 6000|
|Read Length||Pair-end 150bp|
|Recommended Sequencing Depth||≥ 40 million read pairs per sample for species with reference genome|
|Standard Data Analysis||
Project Workflow of Novogene Metagenomic Sequencing Services
In order to keep the accuracy and reliability of the sequencing data, quality control (QC) is performed at each step of the procedure. Each step is performed in agreement with a high scientific standard to ensure high-quality analysis results. The shotgun metagenomic sequencing workflow comprises four main steps, from sample preparation and quantification, fragmentation and library preparation, library quality control, sequencing, and bioinformatics analysis.
Featured publications with Novogene Shotgun Metagenomic Sequencing service
Shotgun Metagenomic Sequencing is a flexible approach to obtain microbial genomes among environments (de novo assembly), as well as gene functions (function annotation), and how they interact with each other (pathway analysis). Here presents a list of academic publications that have used Novogene Shotgun Metagenomic Sequencing services.
Gut MicrobesIssue Date: 2020 Jul 3IF: 7.740DOI: 10.1080/19490976.2019.1710091
MicrobiomeIssue Date: 19 October 2018IF: 11.607DOI: 10.1186/s40168-018-0561-x
Nature CommunicationsIssue Date: 2018 May 22IF: 12.121DOI: 10.1038/s41467-018-04453-9
ISME JournalIssue Date: 01 February 2018IF: 9.180DOI: 10.1038/s41396-018-0051-y
Core-pan Gene Rarefaction Curve
Heatmap for the Relation among samples
Venn Figures for Gene Number among samples
Gene Number & Abundance Clustering Heatmap in genus level
Anosim Analysis at Phylum Level
Linear Discriminant Analysis (LDA) & Cladogram
Kyoto Encyclopedia of Genes and Genomes (KEGG) Annotation
Evolutionary Genealogy of Genes: Non-supervised Orthologous Groups (eggNOG) Annotation
PCA & NMDS Analysis Results based on relative abundance of gene functions
Comparison Plot for Metabolic Pathway of multi-samples