Capturing variation in metagenomic assembly graphs with MetaCortex
Capturing variation in metagenomic assembly graphs with MetaCortex
复制标题
使用 MetaCortex 捕获宏基因组装配图的变化
DOI:
10.1101/2021.07.23.453484
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Martin S
中科院分区:
文献类型:
--
作者:
Martin S
MotivationThe assembly of contiguous sequence from metagenomic samples presents a particular challenge, due to the presence of multiple species, often closely related, at varying levels of abundance. Capturing diversity within species, for example, viral haplotypes, or bacterial strain-level diversity, is even more challenging.ResultsWe present MetaCortex, a metagenome assembler that captures intra-species diversity by searching for signatures of local variation along assembled sequences in the underlying assembly graph and outputting these sequences in sequence graph format. We show that MetaCortex produces accurate assemblies with higher genome coverage and contiguity than other popular metagenomic assemblers on mock viral communities with high levels of strain-level diversity and on simulated communities containing simulated strains.Availability and implementationSource code is freely available to download from https://github.com/SR-Martin/metacortex, is implemented in C and supported on MacOS and Linux. The version used for the results presented in this article is available at doi.org/10.5281/zenodo.7273627.Supplementary informationSupplementary data are available atBioinformaticsonline.
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