Data/hora: 01/06/2024 10:42:31

Provedor de dados: 	5	
País: 	France	
Título: 	Patterns of Rare and Abundant Marine Microbial Eukaryotes	
Autores: 	Logares, Ramiro; Audic, Stephane; Bass, David; Bittner, Lucie; Boutte, Christophe; Christen, Richard; Claverie, Jean-michel; Decelle, Johan; Dolan, John R.; Dunthorn, Micah; Edvardsen, Bente; Gobet, Angelique; Kooistra, Wiebe H. C. F.; Mahe, Frederic; Not, Fabrice; Ogata, Hiroyuki; Pawlowski, Jan; Pernice, Massimo C.; Romac, Sarah; Shalchian-tabrizi, Kamran; Simon, Nathalie; Stoeck, Thorsten; Santini, Sebastien; Siano, Raffaele; Wincker, Patrick; Zingone, Adriana; Richards, Thomas A.; De Vargas, Colomban; Massana, Ramon.	
Data: 	2014-04	
Ano: 	2014	
Resumo: 	Background  Biological communities are normally composed of a few abundant and many rare species. This pattern is particularly prominent in microbial communities, in which most constituent taxa are usually extremely rare. Although abundant and rare subcommunities may present intrinsic characteristics that could be crucial for understanding community dynamics and ecosystem functioning, microbiologists normally do not differentiate between them. Here, we investigate abundant and rare subcommunities of marine microbial eukaryotes, a crucial group of organisms that remains among the least-explored biodiversity components of the biosphere. We surveyed surface waters of six separate coastal locations in Europe, independently considering the picoplankton, nanoplankton, and microplankton/mesoplankton organismal size fractions. Results  Deep Illumina sequencing of the 18S rRNA indicated that the abundant regional community was mostly structured by organismal size fraction, whereas the rare regional community was mainly structured by geographic origin. However, some abundant and rare taxa presented similar biogeography, pointing to spatiotemporal structure in the rare microeukaryote biosphere. Abundant and rare subcommunities presented regular proportions across samples, indicating similar species-abundance distributions despite taxonomic compositional variation. Several taxa were abundant in one location and rare in other locations, suggesting large oscillations in abundance. The substantial amount of metabolically active lineages found in the rare biosphere suggests that this subcommunity constitutes a diversity reservoir that can respond rapidly to environmental change. Conclusions  We propose that marine planktonic microeukaryote assemblages incorporate dynamic and metabolically active abundant and rare subcommunities, with contrasting structuring patterns but fairly regular proportions, across space and time.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00186/29683/28098.pdf

DOI:10.1016/j.cub.2014.02.050

http://archimer.ifremer.fr/doc/00186/29683/	
Editor: 	Cell Press	
Relação: 	info:eu-repo/grantAgreement/EC/FP7/517836/EU//BIODIVERSA	
Formato: 	application/pdf	
Fonte: 	Current Biology (0960-9822) (Cell Press), 2014-04 , Vol. 24 , N. 8 , P. 813-821	
Fonte: 	2014 Elsevier Ltd All rights reserved

info:eu-repo/semantics/openAccess

restricted use