Suppr超能文献

vRhyme 能够对宏基因组中的病毒基因组进行分类。

vRhyme enables binning of viral genomes from metagenomes.

机构信息

Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, USA.

Microbiology Doctoral Training Program, University of Wisconsin-Madison, Madison, WI, USA.

出版信息

Nucleic Acids Res. 2022 Aug 12;50(14):e83. doi: 10.1093/nar/gkac341.

Abstract

Genome binning has been essential for characterization of bacteria, archaea, and even eukaryotes from metagenomes. Yet, few approaches exist for viruses. We developed vRhyme, a fast and precise software for construction of viral metagenome-assembled genomes (vMAGs). vRhyme utilizes single- or multi-sample coverage effect size comparisons between scaffolds and employs supervised machine learning to identify nucleotide feature similarities, which are compiled into iterations of weighted networks and refined bins. To refine bins, vRhyme utilizes unique features of viral genomes, namely a protein redundancy scoring mechanism based on the observation that viruses seldom encode redundant genes. Using simulated viromes, we displayed superior performance of vRhyme compared to available binning tools in constructing more complete and uncontaminated vMAGs. When applied to 10,601 viral scaffolds from human skin, vRhyme advanced our understanding of resident viruses, highlighted by identification of a Herelleviridae vMAG comprised of 22 scaffolds, and another vMAG encoding a nitrate reductase metabolic gene, representing near-complete genomes post-binning. vRhyme will enable a convention of binning uncultivated viral genomes and has the potential to transform metagenome-based viral ecology.

摘要

基因组 bin 是从宏基因组中对细菌、古菌,甚至真核生物进行特征描述的重要手段。然而,针对病毒的方法却很少。我们开发了 vRhyme,这是一种用于构建病毒宏基因组组装基因组(vMAG)的快速而精确的软件。vRhyme 利用支架之间的单样本或多样本覆盖效应大小比较,并采用监督机器学习来识别核苷酸特征相似性,这些相似性被编译成加权网络的迭代和精炼 bin。为了精炼 bin,vRhyme 利用了病毒基因组的独特特征,即基于病毒很少编码冗余基因这一观察结果的蛋白质冗余评分机制。使用模拟的病毒组,我们展示了 vRhyme 在构建更完整和无污染的 vMAG 方面与现有 binning 工具相比的优越性能。当应用于来自人类皮肤的 10601 个病毒支架时,vRhyme 增进了我们对常驻病毒的理解,其中包括由 22 个支架组成的 Herelleviridae vMAG 的鉴定,以及另一个编码硝酸盐还原酶代谢基因的 vMAG,这代表了 bin 后近乎完整的基因组。vRhyme 将使未培养病毒基因组的 bin 成为一种惯例,并有可能改变基于宏基因组的病毒生态学。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d615/9371927/b9fb755d1a90/gkac341fig1.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验