BWTaligner: a genome short-read aligner

The development of next-generation sequencing technologies has helped sequence large genomes easily, producing a huge number of short-reads - small fragments of DNA. Despite the existence of many developed alignment tools, mapping short-read datasets to the reference genome, a crucial step of genom...

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Bibliographic Details
Main Authors: Lam Nguyen, Xuan Thi Trinh, Hien Trinh, Dang Hung Tran, Cuong Nguyen
Format: Article
Language:English
Published: Vietnam Ministry of Science and Technology 2018-06-01
Series:Vietnam Journal of Science, Technology and Engineering
Subjects:
Online Access:https://vietnamscience.vjst.vn/index.php/vjste/article/view/246
Description
Summary:The development of next-generation sequencing technologies has helped sequence large genomes easily, producing a huge number of short-reads - small fragments of DNA. Despite the existence of many developed alignment tools, mapping short-read datasets to the reference genome, a crucial step of genome analysis, still remains a challenge. In this study, we develop a short-read alignment program, BWTaligner, based on the Burrows-Wheeler transform compression - exact and inexact matching. We tested it on the paired-end read data simulated from chromosome 9 of the rice genome to compare the alignment and single-nucleotide polymorphism (SNP) calling between our aligner and BWA - the preferred alignment program. The results showed that the BWA delivers higher recall and F-score, while BWTaligner has better precision in high coverage depth.
ISSN:2525-2461
2615-9937