Title
Burrows-Wheeler Transform for Terabases
Abstract
In order to avoid the reference bias introduced by mapping reads to a reference genome, bioinformaticians are investigating reference-free methods for analyzing sequenced genomes. With large projects sequencing thousands of individuals, this raises the need for tools capable of handling terabases of sequence data. A key method is the Burrows-Wheeler transform (BWT), which is widely used for compressing and indexing reads. We propose a practical algorithm for building the BWT of a large read collection by merging the BWTs of subcollections. With our 2.4 Tbp datasets, the algorithm can merge 600 Gbp/day on a single system, using 30 gigabytes of memory overhead on top of the run-length encoded BWTs.
Year
DOI
Venue
2015
10.1109/DCC.2016.17
2016 Data Compression Conference (DCC)
Keywords
Field
DocType
Burrows-Wheeler transform,reference genome,bioinformatics,sequenced genome analysis,sequence data terabase handling,BWT,indexing
Data mining,Burrows–Wheeler transform,Computer science,Gigabyte,Search engine indexing,Theoretical computer science,Data sequences,Merge (version control),Reference genome
Journal
Volume
ISSN
ISBN
abs/1511.00898
1068-0314
978-1-5090-1854-3
Citations 
PageRank 
References 
0
0.34
13
Authors
1
Name
Order
Citations
PageRank
Jouni Sirén122214.85