Assembly

DNA sequence data has become an indispensable tool for Molecular Biology & Evolutionary Biology. Study in these fields now require a genome sequence to work from. We call this a ‘Reference Sequence.’ We need to build a reference for each species. We do this by Genome Assembly. De novo Genome Assembly is the process of reconstructing the original DNA sequence from the fragment reads alone.

Requirements

Before diving into this topic, we recommend you to have a look at:

Material

You can view the tutorial materials in different languages by clicking the dropdown icon next to the slides (slides) and tutorial (tutorial) buttons below.

Introduction

Start here if you are new to genome assembly in Galaxy

Lesson Slides Hands-on Recordings Input dataset Workflows
An Introduction to Genome Assembly
An introduction to get started in genome assembly and annotation
Deeper look into Genome Assembly algorithms
Genome assembly and assembly QC - Introduction short version

Short Read Assembly

These tutorials cover genome assembly using short reads

Lesson Slides Hands-on Recordings Input dataset Workflows
Assembly of metagenomic sequencing data
De Bruijn Graph Assembly
Genome Assembly of a bacterial genome (MRSA) sequenced using Illumina MiSeq Data

Hybrid Assembly using Short and Long Reads

These tutorials cover hybrid genome assembly using both short and long reads

Lesson Slides Hands-on Recordings Input dataset Workflows
Chloroplast genome assembly
Genome Assembly of MRSA from Oxford Nanopore MinION data (and optionally Illumina data)
Hybrid genome assembly - Nanopore and Illumina
Large genome assembly and polishing
Unicycler Assembly
Unicycler assembly of SARS-CoV-2 genome with preprocessing to remove human genome reads

Assembly using PacBio Reads

These tutorials cover genome assembly using PacBio reads

Lesson Slides Hands-on Recordings Input dataset Workflows
Assembly of the mitochondrial genome from PacBio HiFi reads
Genome assembly using PacBio data
Using the VGP workflows to assemble a vertebrate genome with HiFi and Hi-C data
Vertebrate genome assembly using HiFi, Bionano and Hi-C data - Step by Step

Cleaning Genome Assembly

These tutorials cover how to clean and decontaminate a genome assembly

Lesson Slides Hands-on Recordings Input dataset Workflows
Decontamination of a genome assembly

Assessing Genome Assembly Quality

These tutorials cover how to assess the quality of a genome assembly

Lesson Slides Hands-on Recordings Input dataset Workflows
ERGA post-assembly QC
Genome Assembly Quality Control
Making sense of a newly assembled genome

Frequently Asked Questions

Common questions regarding this topic have been collected on a dedicated FAQ page . Common questions related to specific tutorials can be accessed from the tutorials themselves.

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Editorial Board

This material is reviewed by our Editorial Board:

orcid logoDelphine Lariviere avatar Delphine Lariviereorcid logoTristan Reynolds avatar Tristan ReynoldsAnton Nekrutenko avatar Anton Nekrutenko

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Contributors

This material was contributed to by:

orcid logoNate Coraor avatar Nate CoraorNiall Beard avatar Niall Beardorcid logoCristóbal Gallardo avatar Cristóbal Gallardoorcid logoStéphanie Robin avatar Stéphanie RobinMatúš Kalaš avatar Matúš Kalašorcid logoDeepti Varshney avatar Deepti VarshneyGiulio Formenti avatar Giulio Formentiorcid logoPaul Zierep avatar Paul Ziereporcid logoTeresa Müller avatar Teresa Müllerorcid logoTom Brown avatar Tom Brownorcid logoSolenne Correard avatar Solenne Correardorcid logoBérénice Batut avatar Bérénice Batutorcid logoMarius van den Beek avatar Marius van den BeekWilliam Durand avatar William Durandorcid logoMiaomiao Zhou avatar Miaomiao Zhouorcid logoHelena Rasche avatar Helena Rascheorcid logoDelphine Lariviere avatar Delphine LariviereAnton Nekrutenko avatar Anton Nekrutenkoorcid logoErwan Corre avatar Erwan Correorcid logoPolina Polunina avatar Polina Poluninaorcid logoAnna Syme avatar Anna Symeorcid logoMaria Doyle avatar Maria Doyleorcid logoTristan Reynolds avatar Tristan Reynoldsorcid logoAlexandre Cormier avatar Alexandre CormierVerena Moosmann avatar Verena Moosmannorcid logoSaskia Hiltemann avatar Saskia Hiltemannorcid logoRomane LIBOUBAN avatar Romane LIBOUBANorcid logoAnthony Bretaudeau avatar Anthony BretaudeauBazante Sanders avatar Bazante Sandersorcid logoSimon Gladman avatar Simon Gladmanorcid logoLaura Leroi avatar Laura LeroiGildas Le Corguillé avatar Gildas Le CorguilléMarcella Sozzoni avatar Marcella Sozzoniorcid logoVini Salazar avatar Vini Salazarorcid logoLinelle Abueg avatar Linelle Abuegorcid logoNicola Soranzo avatar Nicola Soranzoorcid logoWolfgang Maier avatar Wolfgang Maierorcid logoBjörn Grüning avatar Björn Grüningorcid logoAlex Ostrovsky avatar Alex OstrovskyBrandon Pickett avatar Brandon PickettEnis Afgan avatar Enis AfganFabian Recktenwald avatar Fabian RecktenwaldGrace Hall avatar Grace HallNatalie Whitaker-Allen avatar Natalie Whitaker-Allen

Funding

These individuals or organisations provided funding support for the development of this resource