Patterns of Rare and Abundant Marine Microbial Eukaryotes
|Author(s)||Logares Ramiro1, Audic Stephane2, 3, Bass David4, Bittner Lucie2, 3, 5, Boutte Christophe2, 3, Christen Richard6, 7, Claverie Jean-Michel8, Decelle Johan2, 3, Dolan John R.9, Dunthorn Micah5, Edvardsen Bente10, Gobet Angelique2, 3, Kooistra Wiebe H. C. F.11, Mahe Frederic2, 3, 5, Not Fabrice2, 3, Ogata Hiroyuki8, 12, Pawlowski Jan13, Pernice Massimo C.1, Romac Sarah2, 3, Shalchian-Tabrizi Kamran10, Simon Nathalie2, 3, Stoeck Thorsten5, Santini Sebastien8, Siano Raffaele14, Wincker Patrick15, Zingone Adriana11, Richards Thomas A.16, de Vargas Colomban2, 3, Massana Ramon1|
|Affiliation(s)||1 : CSIC, ICM, E-08003 Barcelona, Spain.
2 : UPMC Paris 06, ADMM UMR 7144, Stn Biol Roscoff, F-29682 Roscoff, France.
3 : CNRS, ADMM UMR 7144, Stn Biol Roscoff, F-29682 Roscoff, France.
4 : Nat Hist Museum, Dept Life Sci, London SW7 5BD, England.
5 : Univ Kaiserslautern, Dept Ecol, D-67663 Kaiserslautern, Germany.
6 : CNRS, SAE UMR 7138, F-06108 Nice 02, France.
7 : Univ Nice Sophia Antipolis, SAE UMR 7138, F-06108 Nice 02, France.
8 : Aix Marseille Univ, CNRS, IGS UMR 7256, F-13288 Marseille, France.
9 : UPMC Paris 06, CNRS, LOV UMR 7093, F-06230 Villefranche Sur Mer, France.
10 : Univ Oslo, Dept Biosci, N-0316 Oslo, Norway.
11 : Stn Zool Anton Dohrn, I-80121 Naples, Italy.
12 : Tokyo Inst Technol, Educ Acad Computat Life Sci, Tokyo 1528552, Japan.
13 : Univ Geneva, Dept Genet & Evolut, CH-1211 Geneva, Switzerland.
14 : IFREMER, Ctr Brest, F-29280 Plouzane, France.
15 : CEA, Genoscope, F-91000 Evry, France.
16 : Univ Exeter, Exeter EX4 4QD, Devon, England.
|Source||Current Biology (0960-9822) (Cell Press), 2014-04 , Vol. 24 , N. 8 , P. 813-821|
|WOS© Times Cited||327|
|Abstract||BackgroundBiological 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.
ResultsDeep 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.
ConclusionsWe 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.