Consistent ultra-long DNA sequencing with automated slow pipetting

Abstract Background Oxford Nanopore Technologies’ instruments can sequence reads of great length. Long reads improve sequence assemblies by unambiguously spanning repetitive elements of the genome. Sequencing reads of significant length requires the preservation of long DNA template molecules throug...

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Main Authors: Trent M. Prall, Emma K. Neumann, Julie A. Karl, Cecilia G. Shortreed, David A. Baker, Hailey E. Bussan, Roger W. Wiseman, David H. O’Connor
Format: Article
Language:English
Published: BMC 2021-03-01
Series:BMC Genomics
Subjects:
Online Access:https://doi.org/10.1186/s12864-021-07500-w
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author Trent M. Prall
Emma K. Neumann
Julie A. Karl
Cecilia G. Shortreed
David A. Baker
Hailey E. Bussan
Roger W. Wiseman
David H. O’Connor
author_facet Trent M. Prall
Emma K. Neumann
Julie A. Karl
Cecilia G. Shortreed
David A. Baker
Hailey E. Bussan
Roger W. Wiseman
David H. O’Connor
author_sort Trent M. Prall
collection DOAJ
description Abstract Background Oxford Nanopore Technologies’ instruments can sequence reads of great length. Long reads improve sequence assemblies by unambiguously spanning repetitive elements of the genome. Sequencing reads of significant length requires the preservation of long DNA template molecules through library preparation by pipetting reagents as slowly as possible to minimize shearing. This process is time-consuming and inconsistent at preserving read length as even small changes in volumetric flow rate can result in template shearing. Results We have designed SNAILS (Slow Nucleic Acid Instrument for Long Sequences), a 3D-printable instrument that automates slow pipetting of reagents used in long read library preparation for Oxford Nanopore sequencing. Across six sequencing libraries, SNAILS preserved more reads exceeding 100 kilobases in length and increased its libraries’ average read length over manual slow pipetting. Conclusions SNAILS is a low-cost, easily deployable solution for improving sequencing projects that require reads of significant length. By automating the slow pipetting of library preparation reagents, SNAILS increases the consistency and throughput of long read Nanopore sequencing.
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spelling doaj.art-7abaa99c2c9742b3894e3dd25ba0d8642022-12-21T22:22:43ZengBMCBMC Genomics1471-21642021-03-0122111210.1186/s12864-021-07500-wConsistent ultra-long DNA sequencing with automated slow pipettingTrent M. Prall0Emma K. Neumann1Julie A. Karl2Cecilia G. Shortreed3David A. Baker4Hailey E. Bussan5Roger W. Wiseman6David H. O’Connor7Department of Pathology and Laboratory Medicine, University of WisconsinDepartment of Pathology and Laboratory Medicine, University of WisconsinDepartment of Pathology and Laboratory Medicine, University of WisconsinDepartment of Pathology and Laboratory Medicine, University of WisconsinDepartment of Pathology and Laboratory Medicine, University of WisconsinDepartment of Pathology and Laboratory Medicine, University of WisconsinDepartment of Pathology and Laboratory Medicine, University of WisconsinDepartment of Pathology and Laboratory Medicine, University of WisconsinAbstract Background Oxford Nanopore Technologies’ instruments can sequence reads of great length. Long reads improve sequence assemblies by unambiguously spanning repetitive elements of the genome. Sequencing reads of significant length requires the preservation of long DNA template molecules through library preparation by pipetting reagents as slowly as possible to minimize shearing. This process is time-consuming and inconsistent at preserving read length as even small changes in volumetric flow rate can result in template shearing. Results We have designed SNAILS (Slow Nucleic Acid Instrument for Long Sequences), a 3D-printable instrument that automates slow pipetting of reagents used in long read library preparation for Oxford Nanopore sequencing. Across six sequencing libraries, SNAILS preserved more reads exceeding 100 kilobases in length and increased its libraries’ average read length over manual slow pipetting. Conclusions SNAILS is a low-cost, easily deployable solution for improving sequencing projects that require reads of significant length. By automating the slow pipetting of library preparation reagents, SNAILS increases the consistency and throughput of long read Nanopore sequencing.https://doi.org/10.1186/s12864-021-07500-wOxford Nanopore technologiesGridIONMinIONDNA sequencingLong read sequencingUltra-long
spellingShingle Trent M. Prall
Emma K. Neumann
Julie A. Karl
Cecilia G. Shortreed
David A. Baker
Hailey E. Bussan
Roger W. Wiseman
David H. O’Connor
Consistent ultra-long DNA sequencing with automated slow pipetting
BMC Genomics
Oxford Nanopore technologies
GridION
MinION
DNA sequencing
Long read sequencing
Ultra-long
title Consistent ultra-long DNA sequencing with automated slow pipetting
title_full Consistent ultra-long DNA sequencing with automated slow pipetting
title_fullStr Consistent ultra-long DNA sequencing with automated slow pipetting
title_full_unstemmed Consistent ultra-long DNA sequencing with automated slow pipetting
title_short Consistent ultra-long DNA sequencing with automated slow pipetting
title_sort consistent ultra long dna sequencing with automated slow pipetting
topic Oxford Nanopore technologies
GridION
MinION
DNA sequencing
Long read sequencing
Ultra-long
url https://doi.org/10.1186/s12864-021-07500-w
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