MetaGen: reference-free learning with multiple metagenomic samples.
MetaGen: reference-free learning with multiple metagenomic samples.
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DOI:
10.1186/s13059-017-1323-y
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发表时间:
2017-10-03
期刊:
影响因子:
12.3
通讯作者:
Zhong W
中科院分区:
文献类型:
--
作者:
Xing X;Liu JS;Zhong W
A major goal of metagenomics is to identify and study the entire collection of microbial species in a set of targeted samples. We describe a statistical metagenomic algorithm that simultaneously identifies microbial species and estimates their abundances without using reference genomes. As a trade-off, we require multiple metagenomic samples, usually ≥10 samples, to get highly accurate binning results. Compared to reference-free methods based primarily on k-mer distributions or coverage information, the proposed approach achieves a higher species binning accuracy and is particularly powerful when sequencing coverage is low. We demonstrated the performance of this new method through both simulation and real metagenomic studies. The MetaGen software is available at https://github.com/BioAlgs/MetaGen. The online version of this article (doi:10.1186/s13059-017-1323-y) contains supplementary material, which is available to authorized users.
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