Simplitigs as an efficient and scalable representation of de Bruijn graphs.
Simplitigs as an efficient and scalable representation of de Bruijn graphs.
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DOI:
10.1186/s13059-021-02297-z
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发表时间:
2021-04-06
期刊:
影响因子:
12.3
通讯作者:
Kucherov G
中科院分区:
文献类型:
--
作者:
Břinda K;Baym M;Kucherov G
de Bruijn graphs play an essential role in bioinformatics, yet they lack a universal scalable representation. Here, we introduce simplitigs as a compact, efficient, and scalable representation, and ProphAsm, a fast algorithm for their computation. For the example of assemblies of model organisms and two bacterial pan-genomes, we compare simplitigs to unitigs, the best existing representation, and demonstrate that simplitigs provide a substantial improvement in the cumulative sequence length and their number. When combined with the commonly used Burrows-Wheeler Transform index, simplitigs reduce memory, and index loading and query times, as demonstrated with large-scale examples of GenBank bacterial pan-genomes. The online version contains supplementary material available at 10.1186/s13059-021-02297-z.
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期刊:
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