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:

Matúš Kalaš avatar Matúš Kalašorcid logoTom Brown avatar Tom BrownAnton Nekrutenko avatar Anton Nekrutenkoorcid logoMiaomiao Zhou avatar Miaomiao Zhouorcid logoErwan Corre avatar Erwan Correorcid logoTeresa Müller avatar Teresa MüllerBrandon Pickett avatar Brandon Pickettorcid logoRomane LIBOUBAN avatar Romane LIBOUBANorcid logoSaskia Hiltemann avatar Saskia HiltemannVerena Moosmann avatar Verena MoosmannGiulio Formenti avatar Giulio FormentiFabian Recktenwald avatar Fabian RecktenwaldMarcella Sozzoni avatar Marcella SozzoniGildas Le Corguillé avatar Gildas Le CorguilléEnis Afgan avatar Enis AfganWilliam Durand avatar William Durandorcid logoNicola Soranzo avatar Nicola SoranzoBazante Sanders avatar Bazante Sandersorcid logoAlexandre Cormier avatar Alexandre Cormierorcid logoLinelle Abueg avatar Linelle Abuegorcid logoCristóbal Gallardo avatar Cristóbal Gallardoorcid logoDelphine Lariviere avatar Delphine Lariviereorcid logoAlex Ostrovsky avatar Alex Ostrovskyorcid logoPolina Polunina avatar Polina Poluninaorcid logoDeepti Varshney avatar Deepti VarshneyGrace Hall avatar Grace Hallorcid logoHelena Rasche avatar Helena Rascheorcid logoSimon Gladman avatar Simon Gladmanorcid logoBérénice Batut avatar Bérénice Batutorcid logoNate Coraor avatar Nate Coraororcid logoAnna Syme avatar Anna Symeorcid logoStéphanie Robin avatar Stéphanie Robinorcid logoTristan Reynolds avatar Tristan ReynoldsNatalie Whitaker-Allen avatar Natalie Whitaker-Allenorcid logoMaria Doyle avatar Maria Doyleorcid logoMarius van den Beek avatar Marius van den Beekorcid logoVini Salazar avatar Vini Salazarorcid logoWolfgang Maier avatar Wolfgang Maierorcid logoPaul Zierep avatar Paul Ziereporcid logoLaura Leroi avatar Laura LeroiNiall Beard avatar Niall Beardorcid logoBjörn Grüning avatar Björn Grüningorcid logoSolenne Correard avatar Solenne Correardorcid logoAnthony Bretaudeau avatar Anthony Bretaudeau

Funding

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