A metagenomic assessment of microbial eukaryotic diversity in the global ocean

14 pages, 5 figures, 1 table, supporting information https://doi.org/10.1111/1755-0998.13147.-- Data availability statement eukaryotesV4 database. Available at https://github.com/aleixop/eukaryotesV4 with https://doi.org/10.5281/zenodo.3522173. Data processing, analysis scripts, mTags and ASV tables. Available at https://github.com/aleixop/Malaspina_Euk_mTags with https://doi.org/10.5281/zenodo.3629394. Fasta files with retrieved mTags and contigs. Available at https://github.com/aleixop/Malaspina_Euk_mTags with https://doi.org/10.5281/zenodo.3629394. V4 amplicon sequences. Deposited at European Nucleotide Archive, accession number PRJEB23771, from a previous study (Giner et al., 2020). V9 amplicon sequences. Deposited at European Nucleotide Archive, under accession number PRJEB36469

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Bibliographic Details
Main Authors: Obiol, Aleix, Rodríguez Giner, Caterina, Sánchez, Pablo, Duarte, Carlos M., Acinas, Silvia G., Massana, Ramon
Other Authors: Ministerio de Economía y Competitividad (España)
Format: artículo biblioteca
Published: Wiley-Blackwell 2020-05
Subjects:Amplicon sequencing, Diversity, Global ocean, Marine protists, Metagenomics,
Online Access:http://hdl.handle.net/10261/210468
http://dx.doi.org/10.13039/501100004052
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100011033
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record_format koha
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
topic Amplicon sequencing
Diversity
Global ocean
Marine protists
Metagenomics
Amplicon sequencing
Diversity
Global ocean
Marine protists
Metagenomics
spellingShingle Amplicon sequencing
Diversity
Global ocean
Marine protists
Metagenomics
Amplicon sequencing
Diversity
Global ocean
Marine protists
Metagenomics
Obiol, Aleix
Rodríguez Giner, Caterina
Sánchez, Pablo
Duarte, Carlos M.
Acinas, Silvia G.
Massana, Ramon
A metagenomic assessment of microbial eukaryotic diversity in the global ocean
description 14 pages, 5 figures, 1 table, supporting information https://doi.org/10.1111/1755-0998.13147.-- Data availability statement eukaryotesV4 database. Available at https://github.com/aleixop/eukaryotesV4 with https://doi.org/10.5281/zenodo.3522173. Data processing, analysis scripts, mTags and ASV tables. Available at https://github.com/aleixop/Malaspina_Euk_mTags with https://doi.org/10.5281/zenodo.3629394. Fasta files with retrieved mTags and contigs. Available at https://github.com/aleixop/Malaspina_Euk_mTags with https://doi.org/10.5281/zenodo.3629394. V4 amplicon sequences. Deposited at European Nucleotide Archive, accession number PRJEB23771, from a previous study (Giner et al., 2020). V9 amplicon sequences. Deposited at European Nucleotide Archive, under accession number PRJEB36469
author2 Ministerio de Economía y Competitividad (España)
author_facet Ministerio de Economía y Competitividad (España)
Obiol, Aleix
Rodríguez Giner, Caterina
Sánchez, Pablo
Duarte, Carlos M.
Acinas, Silvia G.
Massana, Ramon
format artículo
topic_facet Amplicon sequencing
Diversity
Global ocean
Marine protists
Metagenomics
author Obiol, Aleix
Rodríguez Giner, Caterina
Sánchez, Pablo
Duarte, Carlos M.
Acinas, Silvia G.
Massana, Ramon
author_sort Obiol, Aleix
title A metagenomic assessment of microbial eukaryotic diversity in the global ocean
title_short A metagenomic assessment of microbial eukaryotic diversity in the global ocean
title_full A metagenomic assessment of microbial eukaryotic diversity in the global ocean
title_fullStr A metagenomic assessment of microbial eukaryotic diversity in the global ocean
title_full_unstemmed A metagenomic assessment of microbial eukaryotic diversity in the global ocean
title_sort metagenomic assessment of microbial eukaryotic diversity in the global ocean
publisher Wiley-Blackwell
publishDate 2020-05
url http://hdl.handle.net/10261/210468
http://dx.doi.org/10.13039/501100004052
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100011033
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spelling dig-icm-es-10261-2104682021-05-21T07:42:26Z A metagenomic assessment of microbial eukaryotic diversity in the global ocean Obiol, Aleix Rodríguez Giner, Caterina Sánchez, Pablo Duarte, Carlos M. Acinas, Silvia G. Massana, Ramon Ministerio de Economía y Competitividad (España) King Abdullah University of Science and Technology Agencia Estatal de Investigación (España) Amplicon sequencing Diversity Global ocean Marine protists Metagenomics 14 pages, 5 figures, 1 table, supporting information https://doi.org/10.1111/1755-0998.13147.-- Data availability statement eukaryotesV4 database. Available at https://github.com/aleixop/eukaryotesV4 with https://doi.org/10.5281/zenodo.3522173. Data processing, analysis scripts, mTags and ASV tables. Available at https://github.com/aleixop/Malaspina_Euk_mTags with https://doi.org/10.5281/zenodo.3629394. Fasta files with retrieved mTags and contigs. Available at https://github.com/aleixop/Malaspina_Euk_mTags with https://doi.org/10.5281/zenodo.3629394. V4 amplicon sequences. Deposited at European Nucleotide Archive, accession number PRJEB23771, from a previous study (Giner et al., 2020). V9 amplicon sequences. Deposited at European Nucleotide Archive, under accession number PRJEB36469 This is the pre-peer reviewed version of the following article: A metagenomic assessment of microbial eukaryotic diversity in the global ocean, A. Obiol, C.R. Giner, P.Sánchez, C.M. Duarte, S.G. Acinas, R. Massana, Molecular Ecology Resources 20(3): 718-731 (2020), which has been published in final form at https://doi.org/10.1111/1755-0998.13147. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions Surveying microbial diversity and function is accomplished by combining complementary molecular tools. Among them, metagenomics is a PCR free approach that contains all genetic information from microbial assemblages and is today performed at a relatively large scale and reasonable cost, mostly based on very short reads. Here, we investigated the potential of metagenomics to provide taxonomic reports of marine microbial eukaryotes. We prepared a curated database with reference sequences of the V4 region of 18S rDNA clustered at 97% similarity and used this database to extract and classify metagenomic reads. More than half of them were unambiguously affiliated to a unique reference whilst the rest could be assigned to a given taxonomic group. The overall diversity reported by metagenomics was similar to that obtained by amplicon sequencing of the V4 and V9 regions of the 18S rRNA gene, although either one or both of these amplicon surveys performed poorly for groups like Excavata, Amoebozoa, Fungi and Haptophyta. We then studied the diversity of picoeukaryotes and nanoeukaryotes using 91 metagenomes from surface down to bathypelagic layers in different oceans, unveiling a clear taxonomic separation between size fractions and depth layers. Finally, we retrieved long rDNA sequences from assembled metagenomes that improved phylogenetic reconstructions of particular groups. Overall, this study shows metagenomics as an excellent resource for taxonomic exploration of marine microbial eukaryotes his research was supported by the Spanish Ministry of Economy and Competitiveness projects Malaspina‐2010 (CSD2008–00077) and ALLFLAGS (CTM2016‐75083‐R) and King Abdullah University of Science and Technology (KAUST) under contract OSR #3362. AO was supported by a Spanish FPI grant With the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI) Peer Reviewed 2020-05-05T11:18:11Z 2020-05-05T11:18:11Z 2020-05 2020-05-05T11:18:11Z artículo http://purl.org/coar/resource_type/c_6501 issn: 1755-098X e-issn: 1755-0998 Molecular Ecology Resources 20(3): 718-731 (2020) CEX2019-000928-S http://hdl.handle.net/10261/210468 10.1111/1755-0998.13147 http://dx.doi.org/10.13039/501100004052 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011033 #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2016-75083-R https://doi.org/10.1111/1755-0998.13147 Sí open Wiley-Blackwell