P_RNA_scaffolder: a fast and accurate genome scaffolder using paired-end RNA-sequencing reads.

Abstract:

BACKGROUND:Obtaining complete gene structures is one major goal of genome assembly. Some gene regions are fragmented in low quality and high-quality assemblies. Therefore, new approaches are needed to recover gene regions. Genomes are widely transcribed, generating messenger and non-coding RNAs. These widespread transcripts can be used to scaffold genomes and complete transcribed regions. RESULTS:We present P_RNA_scaffolder, a fast and accurate tool using paired-end RNA-sequencing reads to scaffold genomes. This tool aims to improve the completeness of both protein-coding and non-coding genes. After this tool was applied to scaffolding human contigs, the structures of both protein-coding genes and circular RNAs were almost completely recovered and equivalent to those in a complete genome, especially for long proteins and long circular RNAs. Tested in various species, P_RNA_scaffolder exhibited higher speed and efficiency than the existing state-of-the-art scaffolders. This tool also improved the contiguity of genome assemblies generated by current mate-pair scaffolding and third-generation single-molecule sequencing assembly. CONCLUSIONS:The P_RNA_scaffolder can improve the contiguity of genome assembly and benefit gene prediction. This tool is available at http://www.fishbrowser.org/software/P_RNA_scaffolder .

journal_name

BMC Genomics

journal_title

BMC genomics

authors

Zhu BH,Xiao J,Xue W,Xu GC,Sun MY,Li JT

doi

10.1186/s12864-018-4567-3

subject

Has Abstract

pub_date

2018-03-02 00:00:00

pages

175

issue

1

issn

1471-2164

pii

10.1186/s12864-018-4567-3

journal_volume

19

pub_type

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