TY - JOUR T1 - Patterns of Rare and Abundant Marine Microbial Eukaryotes A1 - Logares,Ramiro A1 - Audic,Stephane A1 - Bass,David A1 - Bittner,Lucie A1 - Boutte,Christophe A1 - Christen,Richard A1 - Claverie,Jean-Michel A1 - Decelle,Johan A1 - Dolan,John R. A1 - Dunthorn,Micah A1 - Edvardsen,Bente A1 - Gobet,Angelique A1 - Kooistra,Wiebe H. C. F. A1 - Mahe,Frederic A1 - Not,Fabrice A1 - Ogata,Hiroyuki A1 - Pawlowski,Jan A1 - Pernice,Massimo C. A1 - Romac,Sarah A1 - Shalchian-Tabrizi,Kamran A1 - Simon,Nathalie A1 - Stoeck,Thorsten A1 - Santini,Sebastien A1 - Siano,Raffaele A1 - Wincker,Patrick A1 - Zingone,Adriana A1 - Richards,Thomas A. A1 - de Vargas,Colomban A1 - Massana,Ramon AD - CSIC, ICM, E-08003 Barcelona, Spain. AD - UPMC Paris 06, ADMM UMR 7144, Stn Biol Roscoff, F-29682 Roscoff, France. AD - CNRS, ADMM UMR 7144, Stn Biol Roscoff, F-29682 Roscoff, France. AD - Nat Hist Museum, Dept Life Sci, London SW7 5BD, England. AD - Univ Kaiserslautern, Dept Ecol, D-67663 Kaiserslautern, Germany. AD - CNRS, SAE UMR 7138, F-06108 Nice 02, France. AD - Univ Nice Sophia Antipolis, SAE UMR 7138, F-06108 Nice 02, France. AD - Aix Marseille Univ, CNRS, IGS UMR 7256, F-13288 Marseille, France. AD - UPMC Paris 06, CNRS, LOV UMR 7093, F-06230 Villefranche Sur Mer, France. AD - Univ Oslo, Dept Biosci, N-0316 Oslo, Norway. AD - Stn Zool Anton Dohrn, I-80121 Naples, Italy. AD - Tokyo Inst Technol, Educ Acad Computat Life Sci, Tokyo 1528552, Japan. AD - Univ Geneva, Dept Genet & Evolut, CH-1211 Geneva, Switzerland. AD - IFREMER, Ctr Brest, F-29280 Plouzane, France. AD - CEA, Genoscope, F-91000 Evry, France. AD - Univ Exeter, Exeter EX4 4QD, Devon, England. UR - https://archimer.ifremer.fr/doc/00186/29683/ DO - 10.1016/j.cub.2014.02.050 N2 - 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. Y1 - 2014/04 PB - Cell Press JF - Current Biology SN - 0960-9822 VL - 24 IS - 8 SP - 813 EP - 821 ID - 29683 ER -