Microbial eukaryote communities exhibit robust biogeographical patterns along a gradient of Patagonian and Antarctic lakes
Microbial eukaryotes play important roles in aquatic ecosystem functioning. Unravelling their distribution patterns and biogeography provides important baseline information to infer the underlying mechanisms that regulate the biodiversity and complexity of ecosystems. We studied the distribution pat...
| Otros Autores: | , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2016schiaffino.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 008 | 181022t2016 xxu||||| |||| 00| 0 eng d | ||
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| 022 | |a 1462-2920 | ||
| 024 | |a 10.1111/1462-2920.13566 | ||
| 040 | |a AR-BaUFA | ||
| 245 | 1 | |a Microbial eukaryote communities exhibit robust biogeographical patterns along a gradient of Patagonian and Antarctic lakes | |
| 520 | |a Microbial eukaryotes play important roles in aquatic ecosystem functioning. Unravelling their distribution patterns and biogeography provides important baseline information to infer the underlying mechanisms that regulate the biodiversity and complexity of ecosystems. We studied the distribution patterns and factors driving diversity gradients in microeukaryote communities (total, abundant, uncommon and rare community composition) along a latitudinal gradientof lakes distributed from Argentinean Patagonia to Maritime Antarctica using both denaturing gradient gel electrophoresis (DGGE) and high-throughput sequencing (Illumina HiSeq). DGGE and abundant Illumina operational taxonomic units (OTUs) showed both decreasing richness with latitude and significant differences between Patagonian and Antarctic lakes communities. In contrast, total richness did not change significantly across the latitudinal gradient, although evenness and diversity indices were significantly higher in Patagonian lakes. Beta-diversity was characterized by a high species turnover, influenced by both environmental and geographical descriptors, although this pattern faded in the rare community. Our results suggest the co-existence of a ‘core biosphere’ containing reduced number of abundant/dominant OTUs on which classical ecological rules apply, together with a much larger seedbank of rare OTUs driven by stochastic and reduced dispersal processes. These findings shed new light on the biogeographical patterns and forces structuring inland microeukaryote composition across broad spatial scales. | ||
| 653 | |a ALTITUDE | ||
| 653 | |a AUSTRIA | ||
| 653 | |a BIODIVERSITY | ||
| 653 | |a CHILE | ||
| 653 | |a CLASSIFICATION | ||
| 653 | |a ETHIOPIA | ||
| 653 | |a EUKARYOTE | ||
| 653 | |a FUNGUS | ||
| 653 | |a GENETIC VARIATION | ||
| 653 | |a GEOGRAPHY | ||
| 653 | |a LAKE | ||
| 653 | |a MICROBIOLOGY | ||
| 653 | |a PLANKTON | ||
| 700 | 1 | |a Schiaffino, M. Romina |u CONICET. Centro de Investigaciones y transferencia del Noroeste de la Provincia de Buenos Aires (UNNOBA). Junín, Buenos Aires, Argentina. |9 67589 | |
| 700 | 1 | |a Lara, Enrique |u University of Neuchâtel. Laboratory of Soil Biodiversity. Neuchâtel, Switzerland. |9 67590 | |
| 700 | 1 | |a Fernández, Leonardo D. |u University of Neuchâtel. Laboratory of Soil Biodiversity. Neuchâtel, Switzerland. |u Universidad de Concepción. Facultad de Ciencias Naturales y Oceanográficas. Departamento de Zoología. Laboratorio de Ecología Evolutiva y Filoinformática. Concepción, Chile. |u Universidad de Las Américas. Facultad de Medicina Veterinaria y Agronomía. Sede Concepción. Concepción, Chile. |9 67592 | |
| 700 | 1 | |a Balagué, Vanessa |u Institut de Ciències del Mar (CSIC). Barcelona, Catalonia, Spain. |9 67594 | |
| 700 | 1 | |a Singer, David |u University of Neuchâtel. Laboratory of Soil Biodiversity. Neuchâtel, Switzerland. |9 67595 | |
| 700 | 1 | |a Seppey, Christophe C. W. |u University of Neuchâtel. Laboratory of Soil Biodiversity. Neuchâtel, Switzerland. |9 67596 | |
| 700 | 1 | |a Massana, Ramón |u Institut de Ciències del Mar (CSIC). Barcelona, Catalonia, Spain. |9 67597 | |
| 700 | 1 | |a Izaguirre, Irina |u Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución (IEGEBA). Buenos Aires, Argentina. |u CONICET – Universidad de Buenos Aires. Departamento de Ecología, Genética y Evolución (IEGEBA). Buenos Aires, Argentina |9 41545 | |
| 773 | |t Environmental Microbiology |g Vol.18, no.12 (2016), p.5249–5264, tbls., grafs., mapas | ||
| 856 | |f 2016schiaffino |i En Reservorio: |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2016schiaffino.pdf |x ARTI201810 | ||
| 856 | |u https://www.wiley.com |z LINK AL EDITOR | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||