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 logoTom Brown avatar Tom Brownorcid logoBérénice Batut avatar Bérénice Batutorcid logoLaura Leroi avatar Laura Leroiorcid logoTristan Reynolds avatar Tristan Reynoldsorcid logoDeepti Varshney avatar Deepti Varshneyorcid logoAlexandre Cormier avatar Alexandre CormierBrandon Pickett avatar Brandon Pickettorcid logoWolfgang Maier avatar Wolfgang MaierAnton Nekrutenko avatar Anton NekrutenkoGiulio Formenti avatar Giulio Formentiorcid logoPolina Polunina avatar Polina Poluninaorcid logoStéphanie Robin avatar Stéphanie Robinorcid logoNate Coraor avatar Nate CoraorEnis Afgan avatar Enis Afganorcid logoCristóbal Gallardo avatar Cristóbal Gallardoorcid logoAlex Ostrovsky avatar Alex Ostrovskyorcid logoDelphine Lariviere avatar Delphine LariviereWilliam Durand avatar William DurandGildas Le Corguillé avatar Gildas Le CorguilléNatalie Whitaker-Allen avatar Natalie Whitaker-Allenorcid logoTeresa Müller avatar Teresa Müllerorcid logoRomane LIBOUBAN avatar Romane LIBOUBANorcid logoVini Salazar avatar Vini Salazarorcid logoErwan Corre avatar Erwan Correorcid logoPaul Zierep avatar Paul Ziereporcid logoAnna Syme avatar Anna SymeVerena Moosmann avatar Verena Moosmannorcid logoAnthony Bretaudeau avatar Anthony Bretaudeauorcid logoLinelle Abueg avatar Linelle Abuegorcid logoMiaomiao Zhou avatar Miaomiao ZhouNiall Beard avatar Niall Beardorcid logoMaria Doyle avatar Maria DoyleMarcella Sozzoni avatar Marcella Sozzoniorcid logoSaskia Hiltemann avatar Saskia Hiltemannorcid logoNicola Soranzo avatar Nicola Soranzoorcid logoSimon Gladman avatar Simon Gladmanorcid logoMarius van den Beek avatar Marius van den Beekorcid logoBjörn Grüning avatar Björn GrüningBazante Sanders avatar Bazante Sandersorcid logoHelena Rasche avatar Helena Rascheorcid logoSolenne Correard avatar Solenne CorreardMatúš Kalaš avatar Matúš KalašGrace Hall avatar Grace HallFabian Recktenwald avatar Fabian Recktenwald

Funding

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