Improving genome assemblies by sequencing PCR products with PacBio

Advances in sequencing technologies have dramatically reduced costs in producing high-quality draft genomes. However, there are still many contigs and possible misassembled regions in those draft genomes. Improving the quality of these genomes requires an efficient and economical means to close gaps...

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Main Authors: Xiaojing Zhang, Karen W. Davenport, Wei Gu, Hajnalka E. Daligault, A. Christine Munk, Hazuki Tashima, Krista Reitenga, Lance D. Green, Cliff S. Han
Format: Article
Language:English
Published: Taylor & Francis Group 2012-07-01
Series:BioTechniques
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Online Access:https://www.future-science.com/doi/10.2144/0000113891
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author Xiaojing Zhang
Karen W. Davenport
Wei Gu
Hajnalka E. Daligault
A. Christine Munk
Hazuki Tashima
Krista Reitenga
Lance D. Green
Cliff S. Han
author_facet Xiaojing Zhang
Karen W. Davenport
Wei Gu
Hajnalka E. Daligault
A. Christine Munk
Hazuki Tashima
Krista Reitenga
Lance D. Green
Cliff S. Han
author_sort Xiaojing Zhang
collection DOAJ
description Advances in sequencing technologies have dramatically reduced costs in producing high-quality draft genomes. However, there are still many contigs and possible misassembled regions in those draft genomes. Improving the quality of these genomes requires an efficient and economical means to close gaps and resequence some regions. Sequencing pooled gap region PCR products with Pacific Biosciences (PacBio) provides a significantly less expensive means for this need. We have developed a genome improvement pipeline with this strategy after decreasing a loading bias against larger PCR products in the PacBio process. Compared with Sanger technology, this approach is not only cost-effective but also can close gaps greater than 2.5 kb in a single round of reactions, and sequence through high GC regions as well as difficult secondary structures such as small hairpin loops.
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1940-9818
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publishDate 2012-07-01
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record_format Article
series BioTechniques
spelling doaj-art-5d08a62df0bb4bcaab2054d7343cdd702025-08-20T02:25:58ZengTaylor & Francis GroupBioTechniques0736-62051940-98182012-07-01531616210.2144/0000113891Improving genome assemblies by sequencing PCR products with PacBioXiaojing Zhang0Karen W. Davenport1Wei Gu2Hajnalka E. Daligault3A. Christine Munk4Hazuki Tashima5Krista Reitenga6Lance D. Green7Cliff S. Han81The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.A1The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.A1The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.A1The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.A1The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.A1The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.A1The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.A1The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.A1The Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, U.S.AAdvances in sequencing technologies have dramatically reduced costs in producing high-quality draft genomes. However, there are still many contigs and possible misassembled regions in those draft genomes. Improving the quality of these genomes requires an efficient and economical means to close gaps and resequence some regions. Sequencing pooled gap region PCR products with Pacific Biosciences (PacBio) provides a significantly less expensive means for this need. We have developed a genome improvement pipeline with this strategy after decreasing a loading bias against larger PCR products in the PacBio process. Compared with Sanger technology, this approach is not only cost-effective but also can close gaps greater than 2.5 kb in a single round of reactions, and sequence through high GC regions as well as difficult secondary structures such as small hairpin loops.https://www.future-science.com/doi/10.2144/0000113891Sequencinghairpin structureGC richPacBio
spellingShingle Xiaojing Zhang
Karen W. Davenport
Wei Gu
Hajnalka E. Daligault
A. Christine Munk
Hazuki Tashima
Krista Reitenga
Lance D. Green
Cliff S. Han
Improving genome assemblies by sequencing PCR products with PacBio
BioTechniques
Sequencing
hairpin structure
GC rich
PacBio
title Improving genome assemblies by sequencing PCR products with PacBio
title_full Improving genome assemblies by sequencing PCR products with PacBio
title_fullStr Improving genome assemblies by sequencing PCR products with PacBio
title_full_unstemmed Improving genome assemblies by sequencing PCR products with PacBio
title_short Improving genome assemblies by sequencing PCR products with PacBio
title_sort improving genome assemblies by sequencing pcr products with pacbio
topic Sequencing
hairpin structure
GC rich
PacBio
url https://www.future-science.com/doi/10.2144/0000113891
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