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Genome Annotation and Assembly

Genome Annotation and Assembly

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.

Next-generation Sequencing

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....

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Related Experiment Video

Updated: Oct 16, 2025

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies

Published on: August 20, 2021

Democratizing long-read genome assembly.

Melanie Kirsche¹, Michael C Schatz²

¹Department of Computer Science, Johns Hopkins University, Baltimore, MD, USA.

|October 21, 2021

Summary

This summary is machine-generated.

A new genome assembler, mdBG, significantly accelerates the process of de novo genome assembly. This breakthrough enables rapid pan-genomics for numerous species, including assembling a human genome in under 10 minutes.

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Last Updated: Oct 16, 2025

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies

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Published on: August 20, 2021

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Area of Science:

Genomics
Bioinformatics
Computational Biology

Background:

De novo genome assembly is fundamental to modern genomics research.
Existing assembly methods can be computationally intensive and time-consuming.

Purpose of the Study:

To introduce a novel genome assembler, mdBG.
To demonstrate its significantly improved speed and efficiency for de novo genome assembly.

Main Methods:

Development of the mdBG assembler algorithm.
Benchmarking mdBG against previous genome assembly methods using diverse datasets.

Main Results:

mdBG achieves genome assembly speeds up to 100-fold faster than existing tools.
A complete human genome was assembled in under 10 minutes using mdBG.
The assembler's performance was validated across various species.

Conclusions:

mdBG represents a substantial advancement in genome assembly technology.
The speed of mdBG unlocks the potential for large-scale pan-genomic studies across many species.
This tool will accelerate genomic research and discovery.