Finding all maximal perfect haplotype blocks in linear time
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Published:2020-02-10
Issue:1
Volume:15
Page:
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ISSN:1748-7188
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Container-title:Algorithms for Molecular Biology
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language:en
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Short-container-title:Algorithms Mol Biol
Author:
Alanko Jarno, Bannai Hideo, Cazaux Bastien, Peterlongo Pierre, Stoye JensORCID
Abstract
AbstractRecent large-scale community sequencing efforts allow at an unprecedented level of detail the identification of genomic regions that show signatures of natural selection. Traditional methods for identifying such regions from individuals’ haplotype data, however, require excessive computing times and therefore are not applicable to current datasets. In 2019, Cunha et al. (Advances in bioinformatics and computational biology: 11th Brazilian symposium on bioinformatics, BSB 2018, Niterói, Brazil, October 30 - November 1, 2018, Proceedings, 2018. 10.1007/978-3-030-01722-4_3) suggested the maximal perfect haplotype block as a very simple combinatorial pattern, forming the basis of a new method to perform rapid genome-wide selection scans. The algorithm they presented for identifying these blocks, however, had a worst-case running time quadratic in the genome length. It was posed as an open problem whether an optimal, linear-time algorithm exists. In this paper we give two algorithms that achieve this time bound, one conceptually very simple one using suffix trees and a second one using the positional Burrows–Wheeler Transform, that is very efficient also in practice.
Funder
JSPS KASKENHI ANR Hydrogen
Publisher
Springer Science and Business Media LLC
Subject
Applied Mathematics,Computational Theory and Mathematics,Molecular Biology,Structural Biology
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