iPHoP: An integrated machine learning framework to maximize host prediction for metagenome-derived viruses of archaea and bacteria

Roux, Simon; Camargo, Antonio Pedro; Coutinho, Felipe H.; Dabdoub, Shareef M.; Dutilh, Bas E.; Nayfach, Stephen; Tritt, Andrew; Arumugam, ed., Manimozhiyan

doi:10.1371/journal.pbio.3002083

Title: iPHoP: An integrated machine learning framework to maximize host prediction for metagenome-derived viruses of archaea and bacteria

Journal Article · 20 April 2023 · PLoS Biology (Online)

DOI: https://doi.org/10.1371/journal.pbio.3002083 · OSTI ID:1972401

; Camargo, Antonio Pedro; Coutinho, Felipe H.; Dabdoub, Shareef M.; Dutilh, Bas E.; Nayfach, Stephen; Tritt, Andrew; Arumugam, ed., Manimozhiyan

The extraordinary diversity of viruses infecting bacteria and archaea is now primarily studied through metagenomics. While metagenomes enable high-throughput exploration of the viral sequence space, metagenome-derived sequences lack key information compared to isolated viruses, in particular host association. Different computational approaches are available to predict the host(s) of uncultivated viruses based on their genome sequences, but thus far individual approaches are limited either in precision or in recall, i.e., for a number of viruses they yield erroneous predictions or no prediction at all. Here, we describe iPHoP, a two-step framework that integrates multiple methods to reliably predict host taxonomy at the genus rank for a broad range of viruses infecting bacteria and archaea, while retaining a low false discovery rate. Based on a large dataset of metagenome-derived virus genomes from the IMG/VR database, we illustrate how iPHoP can provide extensive host prediction and guide further characterization of uncultivated viruses.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: European Research Council (ERC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Biological and Environmental Research (BER)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1972401

Journal Information:: PLoS Biology (Online), Journal Name: PLoS Biology (Online) Journal Issue: 4 Vol. 21; ISSN 1545-7885

Publisher:: Public Library of Science (PLoS)Copyright Statement

Country of Publication:: United States

Language:: English

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