Diversity of marine microeukaryotes in the global deep ocean

Diversity of marine microeukaryotes in the global deep ocean

Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain

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Main Authors: Giner, Caterina R., Logares, Ramiro, Perera-Bel, Júlia, Massana, Ramon
Format: comunicación de congreso biblioteca
Published: Association for the Sciences of Limnology and Oceanography 2015-02-24
Online Access:http://hdl.handle.net/10261/136219
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spelling dig-icm-es-10261-1362192019-03-26T11:56:41Z Diversity of marine microeukaryotes in the global deep ocean Giner, Caterina R. Logares, Ramiro Perera-Bel, Júlia Massana, Ramon Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain The aim of this work was to study the diversity of bathypelagic microeukaryotes. Seawater samples were taken at around 4000 m depth in 27 stations distributed in the main oceans. Pyrosequencing was used to obtain about half a million tags from the 18S rDNA V4 region, then clustered into 2482 OTUs at 97% similarity. The relative pyrotag abundance of the 20 most abundant OTUs matched well with the results of a parallel metagenomic analysis of 18S rDNA genes, suggesting little PCR bias in the tag-approach. There was a weak trend of genetic similarity among geographically close stations and among samples from the same water-mass, but we did not find a typical global community. Instead, there were four phylogenetic groups (Collodaria, Chrysophytes, Basidiomycota and MALV-II) mixed in different proportions. The amount of phylogenetic novelty was concentrated in three hotspots accounting for 6% of pyrotags globally. Rarefaction curves suggested that there were OTUs still waiting to be discovered. Our study is an essential step for a more detailed investigation of the deep ocean microbiota and suggests idiosyncratic microeukaryotic assemblages in distinct regions Peer Reviewed 2016-09-01T10:30:15Z 2016-09-01T10:30:15Z 2015-02-24 2016-09-01T10:30:20Z comunicación de congreso http://purl.org/coar/resource_type/c_5794 2015 Aquatic Sciences Meeting. Program Book: 86 (2015) http://hdl.handle.net/10261/136219 http://www.sgmeet.com/aslo/granada2015/program.asp Sí none Association for the Sciences of Limnology and Oceanography
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
description Aquatic Sciences Meeting, Aquatic Sciences: Global And Regional Perspectives - North Meets South, 22-27 February 2015, Granada, Spain
format comunicación de congreso
author Giner, Caterina R.
Logares, Ramiro
Perera-Bel, Júlia
Massana, Ramon
spellingShingle Giner, Caterina R.
Logares, Ramiro
Perera-Bel, Júlia
Massana, Ramon
Diversity of marine microeukaryotes in the global deep ocean
author_facet Giner, Caterina R.
Logares, Ramiro
Perera-Bel, Júlia
Massana, Ramon
author_sort Giner, Caterina R.
title Diversity of marine microeukaryotes in the global deep ocean
title_short Diversity of marine microeukaryotes in the global deep ocean
title_full Diversity of marine microeukaryotes in the global deep ocean
title_fullStr Diversity of marine microeukaryotes in the global deep ocean
title_full_unstemmed Diversity of marine microeukaryotes in the global deep ocean
title_sort diversity of marine microeukaryotes in the global deep ocean
publisher Association for the Sciences of Limnology and Oceanography
publishDate 2015-02-24
url http://hdl.handle.net/10261/136219
work_keys_str_mv AT ginercaterinar diversityofmarinemicroeukaryotesintheglobaldeepocean
AT logaresramiro diversityofmarinemicroeukaryotesintheglobaldeepocean
AT pererabeljulia diversityofmarinemicroeukaryotesintheglobaldeepocean
AT massanaramon diversityofmarinemicroeukaryotesintheglobaldeepocean
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