Scalable, ultra-fast, and low-memory construction of compacted de Bruijn graphs with Cuttlefish 2

Autor: Jamshed Khan, Marek Kokot, Sebastian Deorowicz, Rob Patro
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Genome Biology, Vol 23, Iss 1, Pp 1-32 (2022)
Druh dokumentu: article
ISSN: 1474-760X
DOI: 10.1186/s13059-022-02743-6
Popis: Abstract The de Bruijn graph is a key data structure in modern computational genomics, and construction of its compacted variant resides upstream of many genomic analyses. As the quantity of genomic data grows rapidly, this often forms a computational bottleneck. We present Cuttlefish 2, significantly advancing the state-of-the-art for this problem. On a commodity server, it reduces the graph construction time for 661K bacterial genomes, of size 2.58Tbp, from 4.5 days to 17–23 h; and it constructs the graph for 1.52Tbp white spruce reads in approximately 10 h, while the closest competitor requires 54–58 h, using considerably more memory.
Databáze: Directory of Open Access Journals